Senior Backend Engineer (Python) at Tetrix | New York City

OverviewTetrix is an innovative startup dedicated to empowering institutional investors to confidently navigate alternative markets, akin to Bloomberg but specifically for private markets. Our cutting-edge, AI-driven platform streamlines complex, unstructured private market data into actionable insights, featuring automated document retrieval, AI-enhanced data extraction, and real-time portfolio analytics—all integrated into a single, user-friendly solution. As we rapidly expand into a category-defining product, we collaborate with prominent capital allocators globally. Join our passionate team on this unique journey to reshape the future of financial market infrastructure, backed by distinguished investors including Innovation Endeavors, Eric Schmidt’s VC firm, and influential angels from BlackRock, CPPIB, SoftBank, Lending Club, and Plaid. Who We AreOur team may be small, but we are driven and experienced, boasting solid expertise in financial markets and modern technology. We have cultivated a culture of trust, ownership, and curiosity, where each member is encouraged to contribute, challenge ideas, and grow collectively. Led by co-founders Olivier (CEO) and Naunidh (CTO), who forged their partnership during their MBA studies at Stanford, Tetrix was founded in the summer of 2023. Who You AreYou are proactive and hands-on, taking the initiative to drive projects forward.You learn and adapt swiftly, tackling challenges with creativity and resourcefulness.You prioritize the customer experience, ensuring that your decisions enhance user satisfaction.You excel in a collaborative environment, valuing open communication and teamwork.You bring 5+ years of experience in Python and JavaScript, ideally within dynamic or entrepreneurial settings. Open-source contributions are a plus. What You’ll DoDesign, develop, and maintain robust web applications using Python and JavaScript.Collaborate with cross-functional teams to define, design, and ship new features.Ensure the performance, quality, and responsiveness of applications.Identify and fix bugs and performance bottlenecks.Contribute to all phases of the development lifecycle.

Role Overview tetrix is hiring a Staff Backend Engineer in New York City. This role focuses on building and maintaining scalable backend systems with Python. The position works closely with colleagues across different teams to deliver software that serves a wide range of clients. What You Will Do Design, implement, and support backend services using Python Collaborate with engineers, product managers, and other stakeholders to deliver reliable solutions Contribute technical expertise to improve and evolve backend architecture

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.

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.

OverviewTetrix is an innovative startup dedicated to enabling institutional investors to make informed decisions in alternative markets, much like Bloomberg does for public markets. Our AI-driven platform converts complex and unstructured private market data into actionable real-time insights, utilizing automated document retrieval, AI-enhanced data extraction, and on-demand portfolio analytics in a unified interface. As we rapidly grow, we are collaborating with some of the foremost capital allocators globally. This is an exceptional opportunity to join a passionate team aiming to redefine infrastructure in financial markets, backed by prominent investors including Innovation Endeavors and Eric Schmidt’s VC firm, as well as angel investors from BlackRock, CPPIB, SoftBank, Lending Club, and Plaid. Who We AreWe are a compact yet powerful startup, rich in experience across both financial markets and cutting-edge technology. Our culture fosters trust, accountability, and curiosity, allowing every team member to contribute, challenge norms, and grow collectively. Our co-founders, Olivier (CEO) and Naunidh (CTO), teamed up during their MBA journey at Stanford and founded Tetrix in the summer of 2023. Who You AreYou are proactive and hands-on, taking initiative and keeping projects moving forward.You learn quickly and adapt with ease, approaching challenges with creativity and enthusiasm.You maintain a customer-first mindset, ensuring that all decisions enhance customer experience.You value collaboration, prioritizing transparent communication to achieve the best outcomes.You possess over 5 years of experience in Infrastructure/DevOps, preferably in dynamic or startup environments. Contributions to open-source projects are a plus. What You’ll DoDesign and implement scalable systems and infrastructure.Automate processes to improve efficiency and reliability.Monitor performance and troubleshoot issues.Collaborate with cross-functional teams to enhance product offerings.

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.

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.

Join Meridian as a Founding Backend Engineer and play a pivotal role in crafting the foundational systems that drive our cutting-edge AI capabilities. In this exciting position, you will be tasked with developing scalable APIs, efficiently managing vast datasets, and establishing a robust and high-performance backend infrastructure.Key ResponsibilitiesDesign and develop resilient backend systems that facilitate AI-driven analytics.Create scalable APIs that provide real-time insights and streamline data management.Enhance data processing pipelines for both large structured and unstructured datasets.Maintain system security, performance, and reliability throughout the tech stack.Collaborate closely with front-end engineers and data scientists to implement impactful features.Make critical technical decisions, balancing speed and long-term sustainability.Candidate ProfileDemonstrated expertise in backend development, supported by a strong portfolio or GitHub repository.Proficiency in Node.js, TypeScript, and Python, with practical experience in scalable backend solutions.In-depth knowledge of database systems (PostgreSQL, S3, data lakes) and adept at efficient query design.Proven history of developing robust data pipelines and experience with distributed systems.Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization technologies (Docker, Kubernetes).Strong understanding of security best practices, API authentication, and performance optimization.Thrives in a dynamic, high-performance startup environment.Experience in system prompt engineering and LLM output evaluation is a plus.

Role overview The Forward Deployed Engineer at Tetrix works onsite with clients in New York City, adapting Tetrix’s technology to meet specific needs. This position centers on tailoring and implementing products in real-world situations, often in collaboration with teams from various backgrounds. What you will do Deliver engineering solutions directly to clients by adapting Tetrix’s technology for each unique environment Work closely with cross-functional teams to customize and integrate products Oversee deployment and ensure smooth operation of technology at client locations Who thrives here This role fits engineers who like hands-on problem solving and want to see their work make an impact on client sites. Curiosity, adaptability, and a focus on practical outcomes are important qualities for success in this position.

Company OverviewAt tennr, we are revolutionizing the referral process in healthcare. When you visit a doctor and receive a referral to a specialist, the waiting game begins. Unfortunately, patients often face delays that can last days, weeks, or even months due to overwhelmed specialists and the cumbersome manual processes involved. Our cutting-edge platform eliminates these bottlenecks by ensuring that every referral is processed promptly and accurately, allowing healthcare providers to enhance their service delivery. Powered by RaeLM™, our sophisticated technology reads, extracts, and acts on comprehensive patient information, enabling providers to capture more referrals, minimize denials, and streamline service times.Position OverviewWe are on the lookout for a Senior Backend Software Engineer who is passionate about systems architecture, data modeling, and large-scale workflow orchestration. In this dynamic role, you will be responsible for designing and implementing features end-to-end within our backend services and infrastructure, ensuring they provide direct value to our customers. Your expertise will contribute to the optimization of data schemas, the construction of resilient backend services, and the seamless integration of third-party systems.You will spearhead initiatives focused on high-volume workflow automation while emphasizing the development and enhancement of scalable data processing and machine learning infrastructure. This role entails designing and maintaining intricate workflows that harness machine learning to drive automation, alongside leading performance optimization efforts to guarantee reliability, scalability, and adherence to best practices across the technology stack.Collaboration is at the heart of our operations; you will closely partner with sales and customer experience teams to integrate customer feedback, while also working hand-in-hand with engineering colleagues to bring robust solutions to fruition. We seek an individual who embodies a founder’s mindset, excels in systems-wide thinking, and is proactive in driving projects from inception to completion.The ideal candidate will possess a rich background in backend architecture, event-driven systems, and orchestration frameworks, coupled with a demonstrable history of building production-ready systems. You will play a pivotal role in shaping the technical foundation of our platform, ensuring that it remains reliable, scalable, and adaptable as we grow.

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.

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.

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.

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.

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.

About madecardAt madecard, our mission is to empower homeowners by saving them time, money, and stress. Central to this mission is the Made Card, a credit card crafted specifically for homeowners that offers unmatched rewards on mortgage payments, home improvements, utilities, and essential purchases. Each transaction fuels a personalized home management platform, allowing users to oversee home systems and appliances, anticipate maintenance needs, and access support—from AI-driven insights to in-person services—precisely when they need it.We collaborate with leading national partners in the residential homeownership sector, including mortgage lenders and home service providers, which enables us to reach millions of households nationwide and deliver substantial benefits to homeowners.Supported by prestigious investors such as Village Global, Jump Capital, Recharge Capital, and Soma Capital, our leadership team boasts extensive expertise in fintech, mortgage, and credit card industries, having held roles at Ramp, Bain Capital, JP Morgan Chase, American Express, and Morgan Stanley. We are dedicated to building a financial and engagement platform for the next generation of homeowners—one that prioritizes the homeowner and redefines what it means to truly feel at home.

About the Role tetrix is hiring a Staff Full Stack Engineer in New York City. This position focuses on building and improving web applications using Python and JavaScript. The work centers on delivering reliable software and refining the platform’s user experience. What You Will Do Develop and maintain web applications with Python and JavaScript Work with teams across engineering, design, and product to deliver scalable solutions Help shape technical direction and ensure software meets customer needs Location This role is based in 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.

About N1:N1 is pioneering a groundbreaking hyper-performant and horizontally scalable blockchain network aimed at facilitating trustless computing on an internet scale.Our diverse team comprises exceptional talents from prestigious institutions such as Harvard, Carnegie Mellon University, DFINITY, VMware, and Galaxy Digital, supported by renowned investors including Founders Fund, Kraken Ventures, SALT, and Amber Group.Position Overview:As an integral member of our software engineering team, you will lead the design and development of critical backend components for our blockchain infrastructure, emphasizing networking, reliability, and scalability. Your main responsibilities will include architecting and coding foundational backend software in Rust, utilizing your extensive expertise to ensure the development, testing, debugging, and deployment of high-quality, production-grade components. You will also play a vital role in upholding and advancing superior software engineering practices within a prominent open-source project.