Backend Engineer At Lightning Ai New York City jobs in New York City – Browse 4,722 openings on RoboApply Jobs

Backend Engineer At Lightning Ai New York City jobs in New York City

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companyLightning AI logo
Full-time|$120K/yr - $250K/yr|Hybrid|New York, New York, United States

About UsAt Lightning AI, the pioneering force behind PyTorch Lightning, we are dedicated to creating an innovative platform for developing, training, and deploying AI systems. Established in 2019, our mission is to seamlessly transition ideas from research to production, minimizing friction along the way.Our merger with Voltage Park, an advanced AI Factory, allows Lightning AI to offer cost-effective, large-scale computational resources alongside developer-friendly software. We equip teams—ranging from solo researchers to large enterprises—with the necessary tools for experimentation, training, and production inference, all while ensuring security, observability, and control.With a global presence and offices in New York City, San Francisco, Seattle, and London, we are supported by esteemed investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We prioritize speed and precision, breaking down complex challenges into manageable tasks.Focus: By collaborating effectively, we tackle one objective at a time, ensuring high-quality feature delivery.Balance: We believe that sustained performance stems from a healthy work-life balance, allowing our team to thrive.Craftsmanship: We take pride in our work, focusing on innovation through excellence and attention to detail.Minimal: Simplicity drives our solutions, as we strive to eliminate unnecessary complexity and focus on what truly matters.What We Are Looking ForWe seek a passionate Backend Engineer to contribute to the development and scalability of the Lightning AI platform. This role encompasses working on various aspects including the frontend, CLI, API, billing, security, and integrations.As a key player, you will own significant features and lead development from concept to deployment while collaborating with a talented team of engineers, product managers, and designers. Your focus will be on speed, quality, and iterative improvement as you help shape transformative technology in the machine-learning landscape!You will be part of the Red Squad and report directly to our Director of Engineering. This is a hybrid position based in our New York City office, with an expectation of 2 days in the office per week.

Mar 17, 2026
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companyLightning AI logo
Full-time|$120K/yr - $250K/yr|Hybrid|New York, New York, United States

Who We AreLightning AI is the innovative force behind PyTorch Lightning. Established in 2019, we provide a comprehensive platform for the development, training, and deployment of AI systems, enabling seamless transitions from research to production.Following our merger with Voltage Park, a neocloud and AI Factory, we have combined developer-centric software with efficient, large-scale computing solutions. Our tools empower teams to experiment, train, and deploy with built-in security, observability, and control.We cater to solo researchers, startups, and established enterprises worldwide, with offices located in New York City, San Francisco, Seattle, and London. We are proud to be backed by industry leaders like Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We act swiftly and accurately, breaking down complex challenges into manageable steps.Focus: We tackle one goal at a time, working collaboratively to deliver high-quality features.Balance: We believe sustained performance stems from rest and recovery, promoting a healthy work-life balance.Craftsmanship: We strive for excellence and take pride in perfecting our craft, ensuring every detail matters.Minimal: We champion simplicity in our innovations, discarding complexities to focus on what truly matters.What We’re Looking ForWe are seeking a Fullstack Engineer to contribute to the development and scaling of the Lightning AI platform, encompassing frontend, CLI, API, billing, security, and integrations.The ideal candidate will take ownership of crucial features, driving development from conception to completion while collaborating with an exceptional team of engineers, product managers, and designers. You will transition from proofs of concept to final releases, with a strong emphasis on speed, quality, and iterative improvement.This is a chance to create groundbreaking technology that will revolutionize the machine-learning landscape!This hybrid role requires in-office attendance two days a week at our New York City office, with a competitive salary range of $120,000 to $250,000.

Mar 17, 2026
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companyLightning AI logo
Full-time|$120K/yr - $250K/yr|Hybrid|New York, New York, United States

Who We AreLightning AI is the innovative force behind PyTorch Lightning. Established in 2019, we specialize in creating a comprehensive platform for developing, training, and deploying AI systems, aimed at seamlessly transitioning ideas from research to practical applications.Our recent merger with Voltage Park, a neocloud and AI Factory, enhances our capabilities by merging developer-centric software with cost-effective, large-scale computing solutions. Our tools empower teams to experiment, train, and implement production inferences, all while ensuring built-in security, observability, and control.We cater to individual researchers, startups, and established enterprises alike. Lightning AI operates on a global scale with offices located in New York City, San Francisco, Seattle, and London, and is supported by esteemed investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We prioritize speed and accuracy, breaking down complex challenges into manageable tasks.Focus: We tackle one goal at a time with diligence, working collaboratively to deliver features with precision.Balance: We believe sustained performance is rooted in a healthy work-life balance, ensuring your productivity and well-being.Craftsmanship: Excellence drives our innovation, as we take pride in mastering every detail of our work.Minimal: We simplify processes through discipline, focusing on what truly matters to facilitate innovation.What We’re Looking ForWe seek a dedicated frontend engineer to enhance and scale the user interface and frontend architecture of the Lightning AI platform. You will take charge of key features, driving development from concept to completion while collaborating with a talented team of engineers, product managers, and designers. Your work will span from initial proof of concept to final release, with an emphasis on speed, quality, and iterative improvement.With over 10,000 organizations utilizing Lightning, you will have a remarkable opportunity to influence how the world builds and deploys AI in production settings.This hybrid role is based in our New York City office, with an in-office requirement of two days per week. The salary range for this role is $120,000 - $250,000.

Mar 17, 2026
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companyLightning AI logo
Full-time|$150K/yr - $195K/yr|Hybrid|New York, New York, United States

Join Our Team as a Machine Learning Solutions EngineerAt Lightning AI, we are pioneers in the field of artificial intelligence, empowering developers and organizations to seamlessly transition their AI concepts from research to production. As the creators of PyTorch Lightning, we offer a comprehensive platform that simplifies the development, training, and deployment of AI systems.Founded in 2019, Lightning AI has merged with Voltage Park, an AI Factory that emphasizes cost-efficient, large-scale computing solutions. Our platform is designed for researchers, startups, and established enterprises, providing them with essential tools for experimentation, training, and production inference, all while ensuring security and observability.Headquartered in New York City, with additional offices in San Francisco, Seattle, and London, we are backed by top-tier investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.

Feb 18, 2026
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companyLightning AI logo
Full-time|$120K/yr - $150K/yr|Hybrid|New York, New York, United States

Who We AreLightning AI is the innovative force behind PyTorch Lightning. Established in 2019, we have created a comprehensive platform that empowers developers to build, train, and deploy AI systems seamlessly, transforming research concepts into production-ready solutions with minimal friction.Following our merger with Voltage Park, a leading neocloud and AI Factory, Lightning AI brings together developer-centric software with scalable, cost-efficient computing power. Our tools are designed to support teams in experimentation, training, and production inference, all while ensuring security, observability, and control.We cater to a diverse range of clients from individual researchers and startups to large enterprises. With a global presence, our offices span New York City, San Francisco, Seattle, and London, and we are supported by esteemed investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We operate with agility, breaking down complex challenges into manageable tasks.Focus: We tackle one objective at a time with diligence, working collaboratively to deliver precise results.Balance: We believe sustained performance stems from adequate rest and recovery, prioritizing a healthy work-life balance.Craftsmanship: We strive for excellence in innovation, taking pride in our meticulous attention to detail.Minimal: Simplicity fuels our creativity as we eliminate unnecessary complexities, focusing on what truly matters.What We’re Looking ForWe invite applications for the position of Account Executive, seeking someone with a proven track record in selling highly technical, developer-focused products to key decision-makers such as CTOs, VPs of Engineering, software engineers, researchers, and data scientists. You excel in a fast-paced, startup atmosphere, managing every phase of the sales cycle from prospecting and qualifying leads to conducting demos, negotiating contracts, and closing deals. Your focus will be on identifying and addressing customer challenges to enhance acquisition while feeding insights back to inform our product roadmap.This role is part of the Sales Team and reports to our VP of Revenue. This hybrid position requires presence in our New York City office for three days each week.

Feb 3, 2026
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companyJunior logo
Full-time|On-site|New York City

About JuniorAt Junior, we are innovating the investment research landscape by developing advanced LLM-powered tools tailored for private market investors. Our clientele features some of the globe's leading private equity and consulting firms, collectively managing investments worth billions each year. We pride ourselves on being a profitable and bootstrapped enterprise, currently expanding our dynamic team of 24 across our London and NYC offices.Discover more about our mission and values here. Role DescriptionIn your role as a Backend Engineer, you will play a pivotal part in constructing and enhancing the systems that drive our AI-powered research platform. This systems-level position is perfect for engineers passionate about data flows, orchestration, and optimizing performance across intricate distributed systems.As one of our initial engineering team members, you will enjoy the distinctive chance to:Deliver results swiftlyDesign and scale backend systems that facilitate high-throughput LLM interactions, vector search, and multi-agent orchestration.Integrate AI infrastructure across various model providers, databases, and internal APIs to develop cohesive and effective systems.Take charge of reliability and observability, aiding in the evolution of our database (Postgres / ClickHouse) and job orchestration systems.Prototype innovative backend functionalities (retrieval pipelines, caching layers, async task queues) that empower quicker and smarter development.Influence our engineering culture About YouWe seek product-oriented backend engineers who:Are based in NYC, as we operate 5 days a week in-person.Are enthusiastic about the convergence of AI infrastructure and systems design.Have a track record of leading projects from inception to completion.Are eager to participate in product decisions.Possess proficiency in our technology stack: Next.js, TypeScript, PostgreSQL.Feel that there is always room for faster development.

Jan 21, 2026
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companyGovEagle logo
Full-time|On-site|New York City

Why We Need YouIn the past year, GovEagle has rapidly established itself as the preferred vendor among the leading government contractors across the nation. Our platform has seen a staggering 10x increase in usage, with our AI agents streamlining the process of shredding requirements, constructing compliance matrices, and drafting proposals in mere hours instead of weeks.To sustain this growth trajectory, we are in search of a Senior Backend Engineer to enhance and optimize the essential systems that power our platform. Your responsibilities will encompass the entirety of our backend, from optimizing API performance to enhancing AI pipeline efficiency and infrastructure. You will ensure that our systems remain fast, reliable, and scalable, as some of the largest defense contractors in the world depend on GovEagle daily.What You're Signing Up ForProfiling and optimizing critical paths within our backend to maintain swift API response times and efficient AI pipelines as workload complexity and customer volume grow exponentially.Identifying and resolving bottlenecks in our database layer, background job orchestration, and asynchronous processing, particularly for extensive LLM workloads.Enhancing our existing Grafana stack to augment logging, metrics, tracing, and alerting, enabling us to comprehend system behavior in production and preemptively address issues before they affect customers.Designing infrastructure improvements to accommodate increased workloads, more concurrent users, and increasingly complex AI pipelines without compromising latency or reliability.Streamlining our build, test, and deployment pipelines to empower the team to deliver faster and with greater confidence.Overseeing our on-call processes, SLOs, and incident response playbooks to make production maintenance uneventful.Collaborating with the CTO as a thought partner on backend architecture decisions. Evaluating trade-offs, drafting RFCs, and raising the engineering standards across the team.

Feb 24, 2026
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company
Full-time|On-site|New York City

Join a team of former Google engineers who have developed some of the world's most significant defensive platforms, including Safe Browsing and reCAPTCHA. We are embarking on an ambitious journey to combat a new generation of adversarial AI attacks that organizations face today.Currently operating in stealth mode, we are targeting a $5B+ market that is primed for innovation. Conventional detection strategies are lagging behind as adversaries leverage AI to create highly customized attacks that evade traditional systems.Your Mission: Design a comprehensive network of AI agents that are efficient, cost-effective, and precise, working in unison to identify and neutralize emerging threats. You will delve into real-time threat data, iteratively refining your agents in response to the evolving battlefield. These agents will function under a rapid iteration and adaptive learning orchestration layer.Challenges and OpportunitiesRapidly Changing Models: The strategies that were effective yesterday may become obsolete tomorrow.Intelligent Adversaries: We are engaged in a real-time arms race against sophisticated AI-driven attackers.No Established Playbook: We are innovating new detection methodologies as threats develop, making this a high-stakes, impactful role from day one.If you are an engineer who thrives on solving complex problems and values quick feedback, this challenge is for you.Why We Will SucceedVast Market Potential: A rapidly expanding market valued at over $5B, with slow-moving traditional competitors.Proven Track Record: Our team has previously built core technologies behind Safe Browsing (serving over 5B users) and reCAPTCHA (protecting more than 5M websites) during our tenure at Google.Third-Time Charm: This is our third endeavor in creating a category-defining security company, and we know how to scale both technology and business effectively.AI and Security Expertise: Our approach integrates AI and security from the ground up rather than as an afterthought.Elite Team: We only recruit top talent, with many team members being in the top 1% of engineers from Google.Agility: We prioritize speed and efficiency, ensuring a dynamic work environment.

Sep 10, 2025
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companyLightning AI logo
Full-time|$60K/yr - $70K/yr|On-site|New York, New York, United States

Who We AreLightning AI, the powerhouse behind PyTorch Lightning, was established in 2019 with a mission to create an all-encompassing platform for the development, training, and deployment of AI systems. Our innovative solutions are crafted to streamline the journey from research to production, minimizing friction.In partnership with Voltage Park, a neocloud and AI Factory, we combine developer-centric software with cost-effective, large-scale computing resources. Our platform equips teams—from individual researchers to large enterprises—with the essential tools for experimentation, training, and production inference, all while ensuring built-in security, observability, and control.With a global presence and offices in New York City, San Francisco, Seattle, and London, Lightning AI is proudly backed by renowned investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.

Sep 3, 2025
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companyEndex logo
Full-time|On-site|New York City

At Endex, we are pioneering the future of finance by integrating advanced AI technologies with the expertise of financial professionals. Our mission is to create the most sophisticated AI-powered digital coworker for the financial services sector. As a Backend Engineer, you will be a vital part of our team, architecting and developing the core systems that drive our innovative financial analysis platform.In this role, you will design and implement robust APIs, services, and application logic that convert intricate financial data into user-friendly tools for investment experts. We are looking for candidates who:Have a proven track record in creating scalable backend systems capable of managing mission-critical transactions.Possess extensive experience in API design, service communication patterns, and database optimization.Are committed to writing clean, efficient, and testable code that excels in performance.Enjoy tackling complex business logic challenges and devising elegant technical solutions.Are enthusiastic about employing modern engineering practices within the financial technology domain.Join us in revolutionizing the AI-native workspace for finance, transforming the competitive landscape for thousands of firms.

Feb 28, 2025
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companyposh logo
Full-time|On-site|New York City

Join our dynamic team at posh as a Senior Backend Software Engineer specializing in AI. In this pivotal role, you will design, develop, and optimize scalable software solutions that power our innovative AI products. Collaborate with cross-functional teams to deliver high-quality technical solutions while enhancing user experience and functionality.

Mar 13, 2026
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company
Full-time|$180K/yr - $225K/yr|On-site|New York City

About HyphaHypha is an innovative AI-powered platform that is revolutionizing asset management throughout its entire lifecycle, including acquisition, management, and exit strategies. With a focus on healthcare facilities and multifamily real estate, we are transforming the industry through three essential pillars:Observability: We deliver real-time visibility into asset performance, deal progress, and market conditions for all stakeholders.Intelligence: Our platform empowers AI-driven multidimensional optimization with risk assessments, tax strategies, and benchmarking.Orchestration: We create seamless workflows and a unified source of truth to eradicate inefficiencies.Role OverviewAs a Backend Engineer specializing in Applied AI at Hypha, you will be instrumental in developing and enhancing the AI systems that form the backbone of our platform. This includes designing and managing document processing pipelines, developing extraction agents, creating entity resolution systems, and shaping the conversational query interface for user interactions with complex data.Your role will involve hands-on work with large language models (LLMs) and agent frameworks to design multi-step workflows that convert unstructured information into structured, actionable insights. A significant portion of your responsibilities will focus on building infrastructure that ensures the reliability, observability, and performance of these AI systems as they scale.We are open to hiring candidates at various experience levels, from early-career engineers to seasoned professionals with extensive systems and architecture experience. The specific level and compensation will be determined during the interview process.

Mar 17, 2026
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company
Full-time|$140K/yr - $190K/yr|On-site|New York City Office

About Method SecurityMethod Security is at the forefront of revolutionizing cybersecurity, especially in an age where AI-driven threats are escalating. Our mission is to protect essential institutions—ranging from government entities to defense organizations and critical commercial sectors—against these advanced threats by crafting state-of-the-art, autonomous defense solutions. We unite our expertise in AI, cybersecurity, and software development to create innovative products that shift the balance of power in security from offense to defense.Our Team and ValuesJoining Method means becoming part of a distinguished, purpose-driven team that champions innovation, transparency, and excellence. We operate with intent, valuing diverse viewpoints and experiences while holding ourselves to high standards of quality. Our team thrives on trust, efficiency, and mutual respect. We are dedicated to fostering an environment where each member can make significant contributions. At Method, you will have the freedom to propel projects forward, the support to overcome challenges, and the chance to shape the future of cybersecurity.Role OverviewAs a Backend Engineer at Method Security, you will be integral in building and scaling the foundational systems that drive our autonomous cybersecurity products. This position entails designing and optimizing distributed systems to adhere to stringent performance and latency benchmarks, along with implementing secure APIs and robust database structures. Collaborating with a high-performing team, you will tackle intricate technical challenges to guarantee our backend infrastructure remains secure, efficient, and dependable.

Apr 5, 2025
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companyPosh logo
Full-time|On-site|New York City

Join Posh as a Senior Backend Software Engineer (AI)At Posh, we are on a mission to combat digital loneliness and foster genuine human connections. Our platform empowers individuals to create real-life communities based on shared interests, bridging the gap between people. Founded by passionate event organizers, we have rapidly grown to over 7 million users, secured $70 million in funding, and facilitated over $300 million in transactions.About the RoleWe are seeking a talented Senior Backend Engineer to join our innovative AI R&D pod. This small, agile team is focused on crafting the future of AI-driven product experiences at Posh. In this backend-centric position, you will play a key role in developing scalable, intelligent systems that power our AI functionalities. Your responsibilities will include designing and deploying complex Multi-Agent Systems, advancing beyond basic solutions to create autonomous, user-friendly interactions.Collaboration will be key, as you will work alongside frontend engineers and product designers to integrate cutting-edge AI tools into our platform. Expect to develop robust APIs, architect data flows for evaluations and fine-tuning, and explore novel approaches to leverage AI within our infrastructure. This is an exciting opportunity to lay the groundwork for the backend of our AI products, while delivering experimental features to a large, engaged user base.This position requires a full-time, in-office commitment at our SoHo NYC location.

Feb 9, 2026
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companyClarion logo
Full-time|On-site|NYC Office

Join Clarion as a Senior Backend EngineerAt Clarion, we are transforming the way healthcare communicates in the era of AI. With the alarming statistic that clinics miss 30–40% of patient calls, we aim to alleviate the burden of administrative tasks on healthcare staff. Our vision is to empower AI agents to manage essential workflows—such as scheduling, billing, prescription refills, and follow-ups—allowing healthcare professionals to prioritize patient care.We are developing the communication infrastructure that modern healthcare requires. Our AI agents not only answer calls but also execute workflows from start to finish, ensuring that patients receive the attention they deserve. To date, we have successfully managed hundreds of thousands of patient interactions with virtual care companies, health systems, and a $5 billion health insurance provider.Founded by a physician trained at Stanford and Harvard, along with a former Amazon Alexa engineer who led AI and machine learning teams at Salesforce, Clarion has secured $5.4 million in funding from prestigious investors including Accel, Y Combinator, and Sequoia. Our in-person team is based in New York City, and we are rapidly working to address one of healthcare's most pressing challenges.Why This Role is UniqueImmediate Impact: Join us at a pivotal moment with numerous paying customers and a rapidly growing revenue stream, giving you the chance to shape foundational backend systems.Addressing Critical Issues: Your contributions will directly influence healthcare communication, impacting millions of individuals.Work with Experts: Collaborate closely with founders who possess deep insights into both healthcare operations and large-scale AI systems, facilitating swift decision-making and genuine ownership of projects.Your ResponsibilitiesBackend Systems: Design, develop, and maintain the services, data models, and business logic that power Clarion’s AI agents and healthcare workflows.Workflow Management: Create infrastructure for multi-step, asynchronous workflows, including AI-driven processes with conditional logic, retries, and effective failure management.Healthcare Integration: Lead crucial integrations with Electronic Health Records (EHRs) and legacy healthcare platforms through APIs and Robotic Process Automation (RPA).Platform Development: Build internal abstractions and tools to enable the team to deploy and customize AI assistants for new clients efficiently and reliably.Security Measures: Establish and uphold backend authentication and authorization protocols, ensuring compliance with industry standards.

Feb 16, 2026
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companyAntimetal logo
Full-time|On-site|HQ - NYC

Join our dynamic team at Antimetal as a Backend Engineer to enhance and scale the systems that power our innovative investigation and automation engine.In this pivotal role, you will develop core backend and platform services, architect solutions for scalability, and ensure our infrastructure can accommodate swift product growth.About AntimetalAntimetal is revolutionizing the future of infrastructure management. We are building a platform that investigates, solves, and prevents issues—empowering engineers to focus on creating exceptional products.Key Responsibilities:Lead the scaling of Antimetal’s AI workflow engine, processing metrics, logs, traces, and code to conduct investigations and deliver intelligible outcomes.Design and implement distributed services to orchestrate data pipelines, automate investigations, and facilitate incident responses at scale.Model and optimize relational data in SQL for high-throughput investigations and comprehensive reporting.Enhance platform reliability through performance improvements, minimizing failure modes, and ensuring scalability with customer demand.Collaborate with cross-functional teams to translate complex requirements into production-ready backend and platform features.Establish engineering standards for coding, communication, and system design, shaping the development of our product.Your Qualifications:4-8 years of engineering experience, including 2+ years in a high-growth environment with significant scaling.Demonstrated experience in building and scaling distributed systems.Proven expertise in backend API/data services.Experience with on-call responsibilities in production systems.Comfortable navigating ambiguity and taking ownership of projects.Exceptional writing and communication abilities.Proficiency in TypeScript within production environments.Preferred Qualifications:Familiarity with observability tools and practices.

Oct 22, 2025
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companyFLORA logo
Full-time|On-site|New York City

About FLORAAt FLORA, we empower the new creative class with innovative tools that enhance their craft. Our intelligent platform utilizes cutting-edge AI models to facilitate creativity. With a small but dynamic team of approximately 20, we have successfully raised $52 million from notable investors such as Redpoint Ventures, Hanabi Capital, Menlo Ventures, Justin Kan, and Gabe Whaley (founder of MSCHF). Our clientele includes esteemed names in the creative industries, such as Pentagram, Lionsgate, and Nike.About the RoleWe are seeking a Senior Backend Engineer to be a pivotal part of FLORA's platform development. You will engage with our database layer, generation infrastructure, observability tools, and the services that enable a seamless real-time creative experience on a large scale.As part of our skilled team of full-stack engineers, you will leverage your extensive backend expertise to resolve our most challenging systems issues. You will take charge of complex projects, work closely with engineering leadership on architectural choices, and evolve with our backend team as we expand.Your ResponsibilitiesDesign and implement generation orchestration infrastructure capable of supporting significant scale.Enhance observability across our infrastructure to minimize failure rates and proactively identify issues before they affect users.Optimize our database layer through effective schema design, indexing strategies, and migrations as we grow.Collaborate on architectural decisions to facilitate the introduction of new features.Partner with the CTO, Product Engineering, and Intelligence Engineering teams to ensure a stable and high-performing foundation for features across all client platforms.Desired Qualifications:A minimum of 5 years of experience in building robust backend systems and operating services at scale.At least 3 years of in-depth experience with TypeScript, emphasizing type safety, error handling, and code organization.Demonstrated ability to analyze ambiguous problems and deliver well-structured solutions.Experience with queue-based architectures, including job scheduling, orchestration, and fault tolerance.Strong instincts for observability; experience in system instrumentation, dashboard creation, and utilizing data to enhance reliability.Excellent communication skills and a collaborative approach to technical decision-making.

Dec 15, 2025
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companyPlot logo
Full-time|On-site|New York City

Why Join Plot?At Plot, we are pioneering the future of social intelligence through our innovative AI-driven platform. Our mission is to empower some of the world’s leading brands to comprehend cultural dynamics, identify emerging trends, and effectively engage their communities on a large scale. As a rapidly expanding, venture-backed startup co-founded by visionaries from Reddit and Plaid, we proudly serve a roster of renowned clients, including Tory Burch, Lululemon, and La Roche-Posay.Operating at the crucial nexus of applied AI and vast data systems, we transform millions of short-form videos daily into structured insights on culture and consumer behavior. Plot renders unstructured social media data comprehensible at scale, allowing brands to cultivate a profound and systematic understanding of trends, audiences, and influence.You will become part of a dynamic and resourceful team where engineers take full ownership of systems — not just individual tasks. Collaborating closely with the founders, you will have the opportunity to shape the foundational architecture and make pivotal decisions that will influence Plot's scaling strategies for years to come. If you relish tackling ambiguous challenges, engaging in deep systems thinking, and constructing infrastructure that unlocks extensive product functionalities, Plot is your ideal environment. This position is also perfect for those aiming to evolve into technical founders, as we cultivate a strong founder’s mindset.

Jan 23, 2026
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companymadecard logo
Full-time|$120K/yr - $160K/yr|On-site|New York City

About madecardAt madecard, our mission is to empower homeowners by saving them time, money, and stress. Our flagship product, the Made Card, is a unique credit card tailored specifically for homeowners, offering exceptional rewards on mortgage payments, home improvements, utilities, and essential purchases. Every transaction fuels a customized home management platform where users can effortlessly oversee their home systems and appliances, stay proactive with maintenance, and access assistance ranging from AI-driven insights to on-site services precisely when needed. By integrating financial tools, valuable data, and trusted professionals, we enable individuals to gain more control, realize significant savings, and ultimately enjoy their homes more fully.We collaborate with prominent national players in the residential homeownership sector, encompassing mortgage lenders, servicers, real estate brokerages, and home improvement providers, seamlessly integrating madecard into pivotal moments of the homeowner journey. This enables us to connect with millions of households nationwide and provide tangible benefits to homeowners.Supported by esteemed investors like Village Global, Jump Capital, Recharge Capital, and Soma Capital, our leadership team possesses extensive experience in fintech, mortgage, and credit card sectors, having previously worked at Ramp, Bain Capital, JP Morgan Chase, American Express, and Morgan Stanley. We are dedicated to creating a financial and engagement platform for the next generation of homeowners, placing them at the forefront and redefining what it means to truly feel at home.About the RoleWe are seeking a Backend Engineer to join our team in building and scaling the services that undergird the Made Card and homeowner platform. In this role, you will be instrumental in the design, development, and upkeep of core systems while closely collaborating with product, frontend, and infrastructure teams. This opportunity is ideal for an individual who thrives on tackling complex backend challenges and aspires to grow within a dynamic startup environment.What You’ll DoFeature Development: Develop and maintain backend services and APIs utilizing Python.Database & Systems: Design, implement, and enhance data models across Postgres, DynamoDB, and Redis.Infrastructure: Assist in deploying and scaling applications using Kubernetes, Docker, and AWS.Collaboration: Work alongside frontend engineers, product managers, and designers to deliver comprehensive features.Code Quality: Produce clean, maintainable, and testable code while participating in code reviews and team discussions.

Sep 28, 2025
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companyTetrix logo
Full-time|On-site|New York City

OverviewJoin Tetrix, a dynamic startup dedicated to revolutionizing the way institutional investors engage with alternative markets. Our cutting-edge AI-driven platform transforms chaotic, unstructured private market data into actionable insights in real-time. With features such as automated document retrieval, AI-powered data extraction, and comprehensive portfolio analytics, we are paving the way for a new standard in financial technology. As we rapidly expand, we are seeking passionate individuals to collaborate with leading capital allocators and help shape the future of investment strategies. Who We AreAt Tetrix, we pride ourselves on our strong industry knowledge combined with modern technological expertise. Our small yet dedicated team thrives on a culture of trust, ownership, and curiosity, empowering every member to share ideas, challenge norms, and grow collectively. Our visionary co-founders, Olivier (CEO) and Naunidh (CTO), forged their partnership during their MBA studies at Stanford and launched Tetrix in the summer of 2023. Who You AreYou are proactive and hands-on, taking initiative and driving projects forward.You learn quickly and are adaptable, tackling challenges with creativity and enthusiasm.You maintain a customer-first mindset, ensuring that user experiences are at the forefront of your backend decisions.You value collaboration, fostering transparency and effective communication within the team.You bring at least 5 years of experience in Python, ideally in fast-paced environments, with a preference for individuals who have contributed to open-source projects. What You’ll DoDesign and implement robust backend systems that support our platform's functionalities.Collaborate with cross-functional teams to define and enhance product features.Engage in code reviews, ensuring best practices and quality control.Optimize and maintain existing backend infrastructure to improve performance and scalability.

Feb 26, 2026

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companyLightning AI logo
Full-time|$120K/yr - $250K/yr|Hybrid|New York, New York, United States

About UsAt Lightning AI, the pioneering force behind PyTorch Lightning, we are dedicated to creating an innovative platform for developing, training, and deploying AI systems. Established in 2019, our mission is to seamlessly transition ideas from research to production, minimizing friction along the way.Our merger with Voltage Park, an advanced AI Factory, allows Lightning AI to offer cost-effective, large-scale computational resources alongside developer-friendly software. We equip teams—ranging from solo researchers to large enterprises—with the necessary tools for experimentation, training, and production inference, all while ensuring security, observability, and control.With a global presence and offices in New York City, San Francisco, Seattle, and London, we are supported by esteemed investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We prioritize speed and precision, breaking down complex challenges into manageable tasks.Focus: By collaborating effectively, we tackle one objective at a time, ensuring high-quality feature delivery.Balance: We believe that sustained performance stems from a healthy work-life balance, allowing our team to thrive.Craftsmanship: We take pride in our work, focusing on innovation through excellence and attention to detail.Minimal: Simplicity drives our solutions, as we strive to eliminate unnecessary complexity and focus on what truly matters.What We Are Looking ForWe seek a passionate Backend Engineer to contribute to the development and scalability of the Lightning AI platform. This role encompasses working on various aspects including the frontend, CLI, API, billing, security, and integrations.As a key player, you will own significant features and lead development from concept to deployment while collaborating with a talented team of engineers, product managers, and designers. Your focus will be on speed, quality, and iterative improvement as you help shape transformative technology in the machine-learning landscape!You will be part of the Red Squad and report directly to our Director of Engineering. This is a hybrid position based in our New York City office, with an expectation of 2 days in the office per week.

Mar 17, 2026
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companyLightning AI logo
Full-time|$120K/yr - $250K/yr|Hybrid|New York, New York, United States

Who We AreLightning AI is the innovative force behind PyTorch Lightning. Established in 2019, we provide a comprehensive platform for the development, training, and deployment of AI systems, enabling seamless transitions from research to production.Following our merger with Voltage Park, a neocloud and AI Factory, we have combined developer-centric software with efficient, large-scale computing solutions. Our tools empower teams to experiment, train, and deploy with built-in security, observability, and control.We cater to solo researchers, startups, and established enterprises worldwide, with offices located in New York City, San Francisco, Seattle, and London. We are proud to be backed by industry leaders like Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We act swiftly and accurately, breaking down complex challenges into manageable steps.Focus: We tackle one goal at a time, working collaboratively to deliver high-quality features.Balance: We believe sustained performance stems from rest and recovery, promoting a healthy work-life balance.Craftsmanship: We strive for excellence and take pride in perfecting our craft, ensuring every detail matters.Minimal: We champion simplicity in our innovations, discarding complexities to focus on what truly matters.What We’re Looking ForWe are seeking a Fullstack Engineer to contribute to the development and scaling of the Lightning AI platform, encompassing frontend, CLI, API, billing, security, and integrations.The ideal candidate will take ownership of crucial features, driving development from conception to completion while collaborating with an exceptional team of engineers, product managers, and designers. You will transition from proofs of concept to final releases, with a strong emphasis on speed, quality, and iterative improvement.This is a chance to create groundbreaking technology that will revolutionize the machine-learning landscape!This hybrid role requires in-office attendance two days a week at our New York City office, with a competitive salary range of $120,000 to $250,000.

Mar 17, 2026
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companyLightning AI logo
Full-time|$120K/yr - $250K/yr|Hybrid|New York, New York, United States

Who We AreLightning AI is the innovative force behind PyTorch Lightning. Established in 2019, we specialize in creating a comprehensive platform for developing, training, and deploying AI systems, aimed at seamlessly transitioning ideas from research to practical applications.Our recent merger with Voltage Park, a neocloud and AI Factory, enhances our capabilities by merging developer-centric software with cost-effective, large-scale computing solutions. Our tools empower teams to experiment, train, and implement production inferences, all while ensuring built-in security, observability, and control.We cater to individual researchers, startups, and established enterprises alike. Lightning AI operates on a global scale with offices located in New York City, San Francisco, Seattle, and London, and is supported by esteemed investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We prioritize speed and accuracy, breaking down complex challenges into manageable tasks.Focus: We tackle one goal at a time with diligence, working collaboratively to deliver features with precision.Balance: We believe sustained performance is rooted in a healthy work-life balance, ensuring your productivity and well-being.Craftsmanship: Excellence drives our innovation, as we take pride in mastering every detail of our work.Minimal: We simplify processes through discipline, focusing on what truly matters to facilitate innovation.What We’re Looking ForWe seek a dedicated frontend engineer to enhance and scale the user interface and frontend architecture of the Lightning AI platform. You will take charge of key features, driving development from concept to completion while collaborating with a talented team of engineers, product managers, and designers. Your work will span from initial proof of concept to final release, with an emphasis on speed, quality, and iterative improvement.With over 10,000 organizations utilizing Lightning, you will have a remarkable opportunity to influence how the world builds and deploys AI in production settings.This hybrid role is based in our New York City office, with an in-office requirement of two days per week. The salary range for this role is $120,000 - $250,000.

Mar 17, 2026
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companyLightning AI logo
Full-time|$150K/yr - $195K/yr|Hybrid|New York, New York, United States

Join Our Team as a Machine Learning Solutions EngineerAt Lightning AI, we are pioneers in the field of artificial intelligence, empowering developers and organizations to seamlessly transition their AI concepts from research to production. As the creators of PyTorch Lightning, we offer a comprehensive platform that simplifies the development, training, and deployment of AI systems.Founded in 2019, Lightning AI has merged with Voltage Park, an AI Factory that emphasizes cost-efficient, large-scale computing solutions. Our platform is designed for researchers, startups, and established enterprises, providing them with essential tools for experimentation, training, and production inference, all while ensuring security and observability.Headquartered in New York City, with additional offices in San Francisco, Seattle, and London, we are backed by top-tier investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.

Feb 18, 2026
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companyLightning AI logo
Full-time|$120K/yr - $150K/yr|Hybrid|New York, New York, United States

Who We AreLightning AI is the innovative force behind PyTorch Lightning. Established in 2019, we have created a comprehensive platform that empowers developers to build, train, and deploy AI systems seamlessly, transforming research concepts into production-ready solutions with minimal friction.Following our merger with Voltage Park, a leading neocloud and AI Factory, Lightning AI brings together developer-centric software with scalable, cost-efficient computing power. Our tools are designed to support teams in experimentation, training, and production inference, all while ensuring security, observability, and control.We cater to a diverse range of clients from individual researchers and startups to large enterprises. With a global presence, our offices span New York City, San Francisco, Seattle, and London, and we are supported by esteemed investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.Our ValuesMove Fast: We operate with agility, breaking down complex challenges into manageable tasks.Focus: We tackle one objective at a time with diligence, working collaboratively to deliver precise results.Balance: We believe sustained performance stems from adequate rest and recovery, prioritizing a healthy work-life balance.Craftsmanship: We strive for excellence in innovation, taking pride in our meticulous attention to detail.Minimal: Simplicity fuels our creativity as we eliminate unnecessary complexities, focusing on what truly matters.What We’re Looking ForWe invite applications for the position of Account Executive, seeking someone with a proven track record in selling highly technical, developer-focused products to key decision-makers such as CTOs, VPs of Engineering, software engineers, researchers, and data scientists. You excel in a fast-paced, startup atmosphere, managing every phase of the sales cycle from prospecting and qualifying leads to conducting demos, negotiating contracts, and closing deals. Your focus will be on identifying and addressing customer challenges to enhance acquisition while feeding insights back to inform our product roadmap.This role is part of the Sales Team and reports to our VP of Revenue. This hybrid position requires presence in our New York City office for three days each week.

Feb 3, 2026
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companyJunior logo
Full-time|On-site|New York City

About JuniorAt Junior, we are innovating the investment research landscape by developing advanced LLM-powered tools tailored for private market investors. Our clientele features some of the globe's leading private equity and consulting firms, collectively managing investments worth billions each year. We pride ourselves on being a profitable and bootstrapped enterprise, currently expanding our dynamic team of 24 across our London and NYC offices.Discover more about our mission and values here. Role DescriptionIn your role as a Backend Engineer, you will play a pivotal part in constructing and enhancing the systems that drive our AI-powered research platform. This systems-level position is perfect for engineers passionate about data flows, orchestration, and optimizing performance across intricate distributed systems.As one of our initial engineering team members, you will enjoy the distinctive chance to:Deliver results swiftlyDesign and scale backend systems that facilitate high-throughput LLM interactions, vector search, and multi-agent orchestration.Integrate AI infrastructure across various model providers, databases, and internal APIs to develop cohesive and effective systems.Take charge of reliability and observability, aiding in the evolution of our database (Postgres / ClickHouse) and job orchestration systems.Prototype innovative backend functionalities (retrieval pipelines, caching layers, async task queues) that empower quicker and smarter development.Influence our engineering culture About YouWe seek product-oriented backend engineers who:Are based in NYC, as we operate 5 days a week in-person.Are enthusiastic about the convergence of AI infrastructure and systems design.Have a track record of leading projects from inception to completion.Are eager to participate in product decisions.Possess proficiency in our technology stack: Next.js, TypeScript, PostgreSQL.Feel that there is always room for faster development.

Jan 21, 2026
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companyGovEagle logo
Full-time|On-site|New York City

Why We Need YouIn the past year, GovEagle has rapidly established itself as the preferred vendor among the leading government contractors across the nation. Our platform has seen a staggering 10x increase in usage, with our AI agents streamlining the process of shredding requirements, constructing compliance matrices, and drafting proposals in mere hours instead of weeks.To sustain this growth trajectory, we are in search of a Senior Backend Engineer to enhance and optimize the essential systems that power our platform. Your responsibilities will encompass the entirety of our backend, from optimizing API performance to enhancing AI pipeline efficiency and infrastructure. You will ensure that our systems remain fast, reliable, and scalable, as some of the largest defense contractors in the world depend on GovEagle daily.What You're Signing Up ForProfiling and optimizing critical paths within our backend to maintain swift API response times and efficient AI pipelines as workload complexity and customer volume grow exponentially.Identifying and resolving bottlenecks in our database layer, background job orchestration, and asynchronous processing, particularly for extensive LLM workloads.Enhancing our existing Grafana stack to augment logging, metrics, tracing, and alerting, enabling us to comprehend system behavior in production and preemptively address issues before they affect customers.Designing infrastructure improvements to accommodate increased workloads, more concurrent users, and increasingly complex AI pipelines without compromising latency or reliability.Streamlining our build, test, and deployment pipelines to empower the team to deliver faster and with greater confidence.Overseeing our on-call processes, SLOs, and incident response playbooks to make production maintenance uneventful.Collaborating with the CTO as a thought partner on backend architecture decisions. Evaluating trade-offs, drafting RFCs, and raising the engineering standards across the team.

Feb 24, 2026
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company
Full-time|On-site|New York City

Join a team of former Google engineers who have developed some of the world's most significant defensive platforms, including Safe Browsing and reCAPTCHA. We are embarking on an ambitious journey to combat a new generation of adversarial AI attacks that organizations face today.Currently operating in stealth mode, we are targeting a $5B+ market that is primed for innovation. Conventional detection strategies are lagging behind as adversaries leverage AI to create highly customized attacks that evade traditional systems.Your Mission: Design a comprehensive network of AI agents that are efficient, cost-effective, and precise, working in unison to identify and neutralize emerging threats. You will delve into real-time threat data, iteratively refining your agents in response to the evolving battlefield. These agents will function under a rapid iteration and adaptive learning orchestration layer.Challenges and OpportunitiesRapidly Changing Models: The strategies that were effective yesterday may become obsolete tomorrow.Intelligent Adversaries: We are engaged in a real-time arms race against sophisticated AI-driven attackers.No Established Playbook: We are innovating new detection methodologies as threats develop, making this a high-stakes, impactful role from day one.If you are an engineer who thrives on solving complex problems and values quick feedback, this challenge is for you.Why We Will SucceedVast Market Potential: A rapidly expanding market valued at over $5B, with slow-moving traditional competitors.Proven Track Record: Our team has previously built core technologies behind Safe Browsing (serving over 5B users) and reCAPTCHA (protecting more than 5M websites) during our tenure at Google.Third-Time Charm: This is our third endeavor in creating a category-defining security company, and we know how to scale both technology and business effectively.AI and Security Expertise: Our approach integrates AI and security from the ground up rather than as an afterthought.Elite Team: We only recruit top talent, with many team members being in the top 1% of engineers from Google.Agility: We prioritize speed and efficiency, ensuring a dynamic work environment.

Sep 10, 2025
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companyLightning AI logo
Full-time|$60K/yr - $70K/yr|On-site|New York, New York, United States

Who We AreLightning AI, the powerhouse behind PyTorch Lightning, was established in 2019 with a mission to create an all-encompassing platform for the development, training, and deployment of AI systems. Our innovative solutions are crafted to streamline the journey from research to production, minimizing friction.In partnership with Voltage Park, a neocloud and AI Factory, we combine developer-centric software with cost-effective, large-scale computing resources. Our platform equips teams—from individual researchers to large enterprises—with the essential tools for experimentation, training, and production inference, all while ensuring built-in security, observability, and control.With a global presence and offices in New York City, San Francisco, Seattle, and London, Lightning AI is proudly backed by renowned investors including Coatue, Index Ventures, Bain Capital Ventures, and Firstminute.

Sep 3, 2025
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companyEndex logo
Full-time|On-site|New York City

At Endex, we are pioneering the future of finance by integrating advanced AI technologies with the expertise of financial professionals. Our mission is to create the most sophisticated AI-powered digital coworker for the financial services sector. As a Backend Engineer, you will be a vital part of our team, architecting and developing the core systems that drive our innovative financial analysis platform.In this role, you will design and implement robust APIs, services, and application logic that convert intricate financial data into user-friendly tools for investment experts. We are looking for candidates who:Have a proven track record in creating scalable backend systems capable of managing mission-critical transactions.Possess extensive experience in API design, service communication patterns, and database optimization.Are committed to writing clean, efficient, and testable code that excels in performance.Enjoy tackling complex business logic challenges and devising elegant technical solutions.Are enthusiastic about employing modern engineering practices within the financial technology domain.Join us in revolutionizing the AI-native workspace for finance, transforming the competitive landscape for thousands of firms.

Feb 28, 2025
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companyposh logo
Full-time|On-site|New York City

Join our dynamic team at posh as a Senior Backend Software Engineer specializing in AI. In this pivotal role, you will design, develop, and optimize scalable software solutions that power our innovative AI products. Collaborate with cross-functional teams to deliver high-quality technical solutions while enhancing user experience and functionality.

Mar 13, 2026
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company
Full-time|$180K/yr - $225K/yr|On-site|New York City

About HyphaHypha is an innovative AI-powered platform that is revolutionizing asset management throughout its entire lifecycle, including acquisition, management, and exit strategies. With a focus on healthcare facilities and multifamily real estate, we are transforming the industry through three essential pillars:Observability: We deliver real-time visibility into asset performance, deal progress, and market conditions for all stakeholders.Intelligence: Our platform empowers AI-driven multidimensional optimization with risk assessments, tax strategies, and benchmarking.Orchestration: We create seamless workflows and a unified source of truth to eradicate inefficiencies.Role OverviewAs a Backend Engineer specializing in Applied AI at Hypha, you will be instrumental in developing and enhancing the AI systems that form the backbone of our platform. This includes designing and managing document processing pipelines, developing extraction agents, creating entity resolution systems, and shaping the conversational query interface for user interactions with complex data.Your role will involve hands-on work with large language models (LLMs) and agent frameworks to design multi-step workflows that convert unstructured information into structured, actionable insights. A significant portion of your responsibilities will focus on building infrastructure that ensures the reliability, observability, and performance of these AI systems as they scale.We are open to hiring candidates at various experience levels, from early-career engineers to seasoned professionals with extensive systems and architecture experience. The specific level and compensation will be determined during the interview process.

Mar 17, 2026
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company
Full-time|$140K/yr - $190K/yr|On-site|New York City Office

About Method SecurityMethod Security is at the forefront of revolutionizing cybersecurity, especially in an age where AI-driven threats are escalating. Our mission is to protect essential institutions—ranging from government entities to defense organizations and critical commercial sectors—against these advanced threats by crafting state-of-the-art, autonomous defense solutions. We unite our expertise in AI, cybersecurity, and software development to create innovative products that shift the balance of power in security from offense to defense.Our Team and ValuesJoining Method means becoming part of a distinguished, purpose-driven team that champions innovation, transparency, and excellence. We operate with intent, valuing diverse viewpoints and experiences while holding ourselves to high standards of quality. Our team thrives on trust, efficiency, and mutual respect. We are dedicated to fostering an environment where each member can make significant contributions. At Method, you will have the freedom to propel projects forward, the support to overcome challenges, and the chance to shape the future of cybersecurity.Role OverviewAs a Backend Engineer at Method Security, you will be integral in building and scaling the foundational systems that drive our autonomous cybersecurity products. This position entails designing and optimizing distributed systems to adhere to stringent performance and latency benchmarks, along with implementing secure APIs and robust database structures. Collaborating with a high-performing team, you will tackle intricate technical challenges to guarantee our backend infrastructure remains secure, efficient, and dependable.

Apr 5, 2025
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companyPosh logo
Full-time|On-site|New York City

Join Posh as a Senior Backend Software Engineer (AI)At Posh, we are on a mission to combat digital loneliness and foster genuine human connections. Our platform empowers individuals to create real-life communities based on shared interests, bridging the gap between people. Founded by passionate event organizers, we have rapidly grown to over 7 million users, secured $70 million in funding, and facilitated over $300 million in transactions.About the RoleWe are seeking a talented Senior Backend Engineer to join our innovative AI R&D pod. This small, agile team is focused on crafting the future of AI-driven product experiences at Posh. In this backend-centric position, you will play a key role in developing scalable, intelligent systems that power our AI functionalities. Your responsibilities will include designing and deploying complex Multi-Agent Systems, advancing beyond basic solutions to create autonomous, user-friendly interactions.Collaboration will be key, as you will work alongside frontend engineers and product designers to integrate cutting-edge AI tools into our platform. Expect to develop robust APIs, architect data flows for evaluations and fine-tuning, and explore novel approaches to leverage AI within our infrastructure. This is an exciting opportunity to lay the groundwork for the backend of our AI products, while delivering experimental features to a large, engaged user base.This position requires a full-time, in-office commitment at our SoHo NYC location.

Feb 9, 2026
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companyClarion logo
Full-time|On-site|NYC Office

Join Clarion as a Senior Backend EngineerAt Clarion, we are transforming the way healthcare communicates in the era of AI. With the alarming statistic that clinics miss 30–40% of patient calls, we aim to alleviate the burden of administrative tasks on healthcare staff. Our vision is to empower AI agents to manage essential workflows—such as scheduling, billing, prescription refills, and follow-ups—allowing healthcare professionals to prioritize patient care.We are developing the communication infrastructure that modern healthcare requires. Our AI agents not only answer calls but also execute workflows from start to finish, ensuring that patients receive the attention they deserve. To date, we have successfully managed hundreds of thousands of patient interactions with virtual care companies, health systems, and a $5 billion health insurance provider.Founded by a physician trained at Stanford and Harvard, along with a former Amazon Alexa engineer who led AI and machine learning teams at Salesforce, Clarion has secured $5.4 million in funding from prestigious investors including Accel, Y Combinator, and Sequoia. Our in-person team is based in New York City, and we are rapidly working to address one of healthcare's most pressing challenges.Why This Role is UniqueImmediate Impact: Join us at a pivotal moment with numerous paying customers and a rapidly growing revenue stream, giving you the chance to shape foundational backend systems.Addressing Critical Issues: Your contributions will directly influence healthcare communication, impacting millions of individuals.Work with Experts: Collaborate closely with founders who possess deep insights into both healthcare operations and large-scale AI systems, facilitating swift decision-making and genuine ownership of projects.Your ResponsibilitiesBackend Systems: Design, develop, and maintain the services, data models, and business logic that power Clarion’s AI agents and healthcare workflows.Workflow Management: Create infrastructure for multi-step, asynchronous workflows, including AI-driven processes with conditional logic, retries, and effective failure management.Healthcare Integration: Lead crucial integrations with Electronic Health Records (EHRs) and legacy healthcare platforms through APIs and Robotic Process Automation (RPA).Platform Development: Build internal abstractions and tools to enable the team to deploy and customize AI assistants for new clients efficiently and reliably.Security Measures: Establish and uphold backend authentication and authorization protocols, ensuring compliance with industry standards.

Feb 16, 2026
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companyAntimetal logo
Full-time|On-site|HQ - NYC

Join our dynamic team at Antimetal as a Backend Engineer to enhance and scale the systems that power our innovative investigation and automation engine.In this pivotal role, you will develop core backend and platform services, architect solutions for scalability, and ensure our infrastructure can accommodate swift product growth.About AntimetalAntimetal is revolutionizing the future of infrastructure management. We are building a platform that investigates, solves, and prevents issues—empowering engineers to focus on creating exceptional products.Key Responsibilities:Lead the scaling of Antimetal’s AI workflow engine, processing metrics, logs, traces, and code to conduct investigations and deliver intelligible outcomes.Design and implement distributed services to orchestrate data pipelines, automate investigations, and facilitate incident responses at scale.Model and optimize relational data in SQL for high-throughput investigations and comprehensive reporting.Enhance platform reliability through performance improvements, minimizing failure modes, and ensuring scalability with customer demand.Collaborate with cross-functional teams to translate complex requirements into production-ready backend and platform features.Establish engineering standards for coding, communication, and system design, shaping the development of our product.Your Qualifications:4-8 years of engineering experience, including 2+ years in a high-growth environment with significant scaling.Demonstrated experience in building and scaling distributed systems.Proven expertise in backend API/data services.Experience with on-call responsibilities in production systems.Comfortable navigating ambiguity and taking ownership of projects.Exceptional writing and communication abilities.Proficiency in TypeScript within production environments.Preferred Qualifications:Familiarity with observability tools and practices.

Oct 22, 2025
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companyFLORA logo
Full-time|On-site|New York City

About FLORAAt FLORA, we empower the new creative class with innovative tools that enhance their craft. Our intelligent platform utilizes cutting-edge AI models to facilitate creativity. With a small but dynamic team of approximately 20, we have successfully raised $52 million from notable investors such as Redpoint Ventures, Hanabi Capital, Menlo Ventures, Justin Kan, and Gabe Whaley (founder of MSCHF). Our clientele includes esteemed names in the creative industries, such as Pentagram, Lionsgate, and Nike.About the RoleWe are seeking a Senior Backend Engineer to be a pivotal part of FLORA's platform development. You will engage with our database layer, generation infrastructure, observability tools, and the services that enable a seamless real-time creative experience on a large scale.As part of our skilled team of full-stack engineers, you will leverage your extensive backend expertise to resolve our most challenging systems issues. You will take charge of complex projects, work closely with engineering leadership on architectural choices, and evolve with our backend team as we expand.Your ResponsibilitiesDesign and implement generation orchestration infrastructure capable of supporting significant scale.Enhance observability across our infrastructure to minimize failure rates and proactively identify issues before they affect users.Optimize our database layer through effective schema design, indexing strategies, and migrations as we grow.Collaborate on architectural decisions to facilitate the introduction of new features.Partner with the CTO, Product Engineering, and Intelligence Engineering teams to ensure a stable and high-performing foundation for features across all client platforms.Desired Qualifications:A minimum of 5 years of experience in building robust backend systems and operating services at scale.At least 3 years of in-depth experience with TypeScript, emphasizing type safety, error handling, and code organization.Demonstrated ability to analyze ambiguous problems and deliver well-structured solutions.Experience with queue-based architectures, including job scheduling, orchestration, and fault tolerance.Strong instincts for observability; experience in system instrumentation, dashboard creation, and utilizing data to enhance reliability.Excellent communication skills and a collaborative approach to technical decision-making.

Dec 15, 2025
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companyPlot logo
Full-time|On-site|New York City

Why Join Plot?At Plot, we are pioneering the future of social intelligence through our innovative AI-driven platform. Our mission is to empower some of the world’s leading brands to comprehend cultural dynamics, identify emerging trends, and effectively engage their communities on a large scale. As a rapidly expanding, venture-backed startup co-founded by visionaries from Reddit and Plaid, we proudly serve a roster of renowned clients, including Tory Burch, Lululemon, and La Roche-Posay.Operating at the crucial nexus of applied AI and vast data systems, we transform millions of short-form videos daily into structured insights on culture and consumer behavior. Plot renders unstructured social media data comprehensible at scale, allowing brands to cultivate a profound and systematic understanding of trends, audiences, and influence.You will become part of a dynamic and resourceful team where engineers take full ownership of systems — not just individual tasks. Collaborating closely with the founders, you will have the opportunity to shape the foundational architecture and make pivotal decisions that will influence Plot's scaling strategies for years to come. If you relish tackling ambiguous challenges, engaging in deep systems thinking, and constructing infrastructure that unlocks extensive product functionalities, Plot is your ideal environment. This position is also perfect for those aiming to evolve into technical founders, as we cultivate a strong founder’s mindset.

Jan 23, 2026
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companymadecard logo
Full-time|$120K/yr - $160K/yr|On-site|New York City

About madecardAt madecard, our mission is to empower homeowners by saving them time, money, and stress. Our flagship product, the Made Card, is a unique credit card tailored specifically for homeowners, offering exceptional rewards on mortgage payments, home improvements, utilities, and essential purchases. Every transaction fuels a customized home management platform where users can effortlessly oversee their home systems and appliances, stay proactive with maintenance, and access assistance ranging from AI-driven insights to on-site services precisely when needed. By integrating financial tools, valuable data, and trusted professionals, we enable individuals to gain more control, realize significant savings, and ultimately enjoy their homes more fully.We collaborate with prominent national players in the residential homeownership sector, encompassing mortgage lenders, servicers, real estate brokerages, and home improvement providers, seamlessly integrating madecard into pivotal moments of the homeowner journey. This enables us to connect with millions of households nationwide and provide tangible benefits to homeowners.Supported by esteemed investors like Village Global, Jump Capital, Recharge Capital, and Soma Capital, our leadership team possesses extensive experience in fintech, mortgage, and credit card sectors, having previously worked at Ramp, Bain Capital, JP Morgan Chase, American Express, and Morgan Stanley. We are dedicated to creating a financial and engagement platform for the next generation of homeowners, placing them at the forefront and redefining what it means to truly feel at home.About the RoleWe are seeking a Backend Engineer to join our team in building and scaling the services that undergird the Made Card and homeowner platform. In this role, you will be instrumental in the design, development, and upkeep of core systems while closely collaborating with product, frontend, and infrastructure teams. This opportunity is ideal for an individual who thrives on tackling complex backend challenges and aspires to grow within a dynamic startup environment.What You’ll DoFeature Development: Develop and maintain backend services and APIs utilizing Python.Database & Systems: Design, implement, and enhance data models across Postgres, DynamoDB, and Redis.Infrastructure: Assist in deploying and scaling applications using Kubernetes, Docker, and AWS.Collaboration: Work alongside frontend engineers, product managers, and designers to deliver comprehensive features.Code Quality: Produce clean, maintainable, and testable code while participating in code reviews and team discussions.

Sep 28, 2025
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companyTetrix logo
Full-time|On-site|New York City

OverviewJoin Tetrix, a dynamic startup dedicated to revolutionizing the way institutional investors engage with alternative markets. Our cutting-edge AI-driven platform transforms chaotic, unstructured private market data into actionable insights in real-time. With features such as automated document retrieval, AI-powered data extraction, and comprehensive portfolio analytics, we are paving the way for a new standard in financial technology. As we rapidly expand, we are seeking passionate individuals to collaborate with leading capital allocators and help shape the future of investment strategies. Who We AreAt Tetrix, we pride ourselves on our strong industry knowledge combined with modern technological expertise. Our small yet dedicated team thrives on a culture of trust, ownership, and curiosity, empowering every member to share ideas, challenge norms, and grow collectively. Our visionary co-founders, Olivier (CEO) and Naunidh (CTO), forged their partnership during their MBA studies at Stanford and launched Tetrix in the summer of 2023. Who You AreYou are proactive and hands-on, taking initiative and driving projects forward.You learn quickly and are adaptable, tackling challenges with creativity and enthusiasm.You maintain a customer-first mindset, ensuring that user experiences are at the forefront of your backend decisions.You value collaboration, fostering transparency and effective communication within the team.You bring at least 5 years of experience in Python, ideally in fast-paced environments, with a preference for individuals who have contributed to open-source projects. What You’ll DoDesign and implement robust backend systems that support our platform's functionalities.Collaborate with cross-functional teams to define and enhance product features.Engage in code reviews, ensuring best practices and quality control.Optimize and maintain existing backend infrastructure to improve performance and scalability.

Feb 26, 2026

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