Senior Fullstack Software Engineer

About WRITERWRITER is the premier platform where top global enterprises harness the power of AI to transform work. Our mission is to amplify human abilities through cutting-edge superintelligence. We are demonstrating this capability by providing powerful, dependable AI solutions that bridge IT and business teams, driving enterprise-wide transformation. With WRITER's comprehensive platform, companies like Mars, Marriott, Uber, and Vanguard are developing AI agents that leverage their own data, empowered by WRITER's robust enterprise-grade large language models (LLMs). Currently valued at $1.9 billion and supported by leading investors such as Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is swiftly establishing itself as a frontrunner in the field of enterprise generative AI.Established in 2020, with hubs in San Francisco, New York City, Austin, Chicago, and London, our team is driven by ambitious goals and a rapid pace. We invite innovative and dedicated individuals to join us on our mission to redefine the future of work through AI. About the RoleWe are on the lookout for a talented fullstack Software Engineer to enhance our engineering team in creating advanced AI-driven agent systems capable of executing autonomous workflows and orchestrating multi-step tasks. In this position, you will be instrumental in designing, developing, and scaling next-generation AI agents that seamlessly integrate with enterprise data and services to address real-world challenges. Collaborating with cross-functional teams, you will convert complex agent concepts into production-ready software solutions.‍ What You'll DoDesign, implement, and maintain scalable and secure agent-driven services and systems that autonomously accomplish tasks using cutting-edge AI frameworks.Enhance and develop robust infrastructure and high-throughput APIs, emphasizing core agent functionalities like memory, communication channels, skills, intelligent decision logic, security, and workflow management.Integrate agent capabilities with backend services, data stores, vector databases, search/retrieval systems, and external APIs.Work closely with product managers, AI researchers, data engineers, and UX teams to translate high-level agent use cases into effective, production-ready software.Ensure the reliability, monitoring, and observability of all agent components (metrics, logging, CI/CD, fault tolerance).Participate in architectural design decisions and conduct thorough code reviews to maintain high standards of quality.

Join WRITER: The Future of AI-Powered WorkAt WRITER, we're revolutionizing the workplace with our cutting-edge AI solutions. Our mission is to augment human capabilities through superintelligence, enabling seamless collaboration between IT and business teams to drive transformative outcomes. Our comprehensive platform empowers renowned organizations such as Mars, Marriott, Uber, and Vanguard to create and deploy AI agents powered by WRITER's enterprise-grade LLMs. With a valuation of $1.9B and support from top-tier investors like Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is solidifying its status as a frontrunner in the enterprise generative AI landscape.Founded in 2020, we have established offices in San Francisco, New York City, Austin, Chicago, and London. Our dynamic team is fueled by a passion for innovation, and we are eager to welcome talented builders and thinkers to help shape the future of work with AI. Position OverviewWe are looking for a talented fullstack Software Engineer to join our engineering team, focusing on the development of sophisticated AI-driven agent systems. These systems will autonomously execute workflows and manage complex tasks, significantly enhancing productivity across enterprise applications. As a key contributor, you will design, develop, and scale next-generation AI agents that integrate seamlessly with enterprise data and services to address real-world challenges. Collaboration with cross-functional teams will be essential in transforming intricate agent concepts into fully operational systems.‍ Key ResponsibilitiesArchitect, implement, and sustain scalable, secure agent-driven services and systems leveraging modern AI frameworks.Build and enhance robust infrastructure and high-throughput APIs, concentrating on critical agent capabilities such as memory management, communication protocols, skills, intelligent decision-making, security, and workflow oversight.Integrate agent functionalities with backend services, data repositories, vector databases, search/retrieval systems, and third-party APIs.Work closely with product managers, AI researchers, data engineers, and UX teams to convert high-level agent use cases into resilient, production-ready software.Ensure the reliability, monitoring, and observability of all agent components, including metrics, logging, CI/CD processes, and fault tolerance.Participate in architectural design discussions and conduct thorough code reviews to maintain high-quality standards.

About ClarionAt Clarion, we're transforming communication in healthcare through cutting-edge AI technology.Currently, clinics are missing 30–40% of patient calls, while their staff faces overwhelming administrative burdens. We envision a future where AI agents manage workflows like scheduling, billing, prescription refills, and follow-ups, allowing healthcare teams to prioritize patient care.We are developing the essential communication framework that modern healthcare demands. Our AI agents not only respond to calls—they complete entire workflows, ensuring that patients are always heard. To date, we've facilitated hundreds of thousands of patient interactions across various virtual care providers, healthcare systems, and a $5B health insurance company.Founded by a physician with training from Stanford and Harvard (part of the founding team at Two Chairs and Ophelia) and an ex-Amazon Alexa engineer who led AI/ML initiatives at Salesforce, we have secured $5.4M in funding from notable investors including Accel, Y Combinator, Sequoia (Scout), and prominent healthcare entrepreneurs. Our team operates in-person in New York, moving swiftly to tackle one of healthcare's most pressing challenges.Why This Role Is UniqueOwnership of high-impact projects: You'll be responsible for significant features and systems that are actively used in real healthcare settings.Early traction and strong signal: With numerous paying customers and increasing revenue, you'll have the opportunity to influence critical product decisions.Learn from industry leaders: Collaborate closely with founders and experienced engineers who work at the nexus of healthcare, AI, and real-time systems.Your ResponsibilitiesDevelop and maintain full-stack features that drive AI-enhanced healthcare communication.Integrate with EHRs, legacy healthcare systems, and real-time voice infrastructure.Work collaboratively with product, design, and senior engineers to turn customer feedback into deliverable software.Enhance reliability, performance, and scalability across active systems.Engage in technical discussions, code reviews, and contribute to the evolution of engineering best practices.Technical Challenges Awaiting YouAI-driven workflows: Support and expand LLM-based systems utilized in real-time healthcare interactions.Real-time systems: Contribute to low-latency services that provide seamless healthcare experiences.

About ClarionAt Clarion, we are revolutionizing communication in healthcare through the power of AI.Currently, clinics are missing 30–40% of patient calls and their staff is burdened with administrative tasks. We envision a future where AI agents manage these workflows, including scheduling, billing, prescription refills, and follow-ups, allowing healthcare professionals to dedicate more time to patient care.We are developing the essential communication infrastructure that modern healthcare needs. Our AI agents do more than just answer calls—they manage workflows from start to finish, ensuring that every patient is heard. To date, we have successfully handled hundreds of thousands of patient interactions across virtual care companies, health systems, and a $5 billion health insurance provider.Founded by a physician trained at Stanford and Harvard, alongside a former Amazon Alexa engineer who led AI/ML teams at Salesforce, Clarion has raised $5.4 million from prominent investors including Accel, Y Combinator, and Sequoia. Our in-person team in New York is rapidly advancing to tackle one of the most pressing challenges in healthcare.

Why Join Moonshot AI?Imagine a world where websites automatically optimize themselves to enhance sales, improve conversion rates, and accelerate growth. At Moonshot AI, we are transforming this vision into reality by integrating generative AI, extensive data processing pipelines, and systematic experimentation into a self-evolving digital ecosystem.As a well-funded startup in its early stages, we have a bold vision. Joining us means becoming more than just an employee; you will play a crucial role in shaping our technical and cultural foundation. If you desire the freedom of a founder, combined with the support of top-tier investors, this is the opportunity for you.Your ContributionsIn your role as our Senior Fullstack Engineer, you will be actively engaged across the technology stack. You will design, develop, and scale systems that power our AI-driven platform, enjoying significant autonomy, rapid execution, and substantial ownership of your work.Build and architect scalable systems — from backend APIs to frontend dashboards — capable of processing millions of web events daily.Create large-scale data infrastructure that elucidates website construction, performance metrics, and optimization strategies.Train and integrate LLMs into production environments to autonomously hypothesize, generate, and validate website variants.Influence engineering culture and practices — your impact will be evident throughout our tech stack, architecture, and team processes.Engage in experimentation, prototyping, and iteration — combining research, product development, AI, and scalability in a single role.This is not about maintaining another SaaS application; it’s about constructing an AI engine that revolutionizes digital product creation.Candidate ProfileA software artisan — you produce clean, scalable code and are adept at delivering results swiftly.5+ years of full-stack development experience (Python, JavaScript, AWS preferred, but not mandatory).Proven experience in leading teams or managing significant projects.Educational background in Computer Science, Electrical Engineering, Mathematics, or equivalent practical expertise.An AI enthusiast eager to work with LLMs and influence their real-world applications.Bonus Qualifications:Experience in a startup environment (thriving in dynamic, fast-paced settings).

About GreenboardAt Greenboard, we are pioneering the future of financial compliance. Our unified, AI-driven compliance operating system serves registered investment advisors (RIAs), fintechs, private funds, hedge funds, and beyond, replacing the disjointed array of legacy tools and automating processes beyond previous capabilities. By centralizing data and streamlining workflows, Greenboard empowers firms to mitigate regulatory risks, simplify their technology infrastructure, modernize compliance operations, and achieve cost savings.Our founding team consists of engineers who have successfully scaled products at industry giants such as Amazon and Google, as well as at several unicorn startups. Supported by esteemed investors including Y Combinator, General Catalyst, and Base10, we have raised over $20 million to date. Renowned financial institutions already trust Greenboard, and our growth trajectory is rapidly accelerating.About the Role:As a pivotal member of our engineering team, you will tackle complex technical challenges ranging from building AI agents for insider trading detection to scaling messaging archiving systems capable of processing tens of millions of messages daily. You will collaborate with a team of world-class engineers, making a significant impact on our innovative projects.This is a full-time, on-site Fullstack Software Engineer position based in New York City.Who You Are:You thrive in fast-paced environments and love to build innovative solutions.You seek deep ownership of the products you develop.You are passionate about understanding and serving the customers you build for.You possess excellent communication skills.You value teamwork and collaboration.You are based in New York City.Qualifications:3-5 years of industry experience.Proficient in Node.js and Python.Experience architecting secure, scalable systems on AWS.Experience in developing scalable data infrastructure.Knowledge of AI and machine learning algorithms.Ability to work effectively in a fast-paced startup environment.Experience in the financial industry is a plus, but not mandatory.Benefits:401(k) plan with 5% company match.Comprehensive medical, dental, and vision insurance.15 days of paid time off plus 11 company holidays and flexible sick leave.

Join our innovative team at Pallet as a Forward Deployed Software Engineer specializing in AI Agents. In this critical role, you will leverage cutting-edge technology to develop and implement software solutions that enhance our AI capabilities. You will work closely with cross-functional teams to deploy software applications that drive efficiency and effectiveness across various platforms.

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.

About MosaicMosaic is an innovative, AI-driven deal modeling platform tailored for private markets, utilized by top-tier investors and advisors such as Warburg Pincus, CVC, New Mountain, and Evercore. Our platform automates and standardizes essential deal analyses—including LBOs and DCFs—enabling investment teams to accelerate their processes, minimize spreadsheet errors, and focus on strategic investment decisions.At Mosaic, we merge deterministic, rules-based calculations with advanced AI capabilities to produce replicable, audit-ready outputs, trusted by private equity, private credit, and investment banking teams across multi-million dollar transactions.We are dedicated to creating the AI-driven operating system for the world’s most sophisticated investors and their advisors. As we rapidly expand, we are seeking talented professionals across engineering, product, customer enablement, and go-to-market teams.This is an exceptional opportunity for those eager to influence the convergence of high finance and technology, shaping the future of the industry for years to come.Learn more about our journey:BloombergFinancial TimesNY PostAbout the RoleAs a Fullstack Engineer at Mosaic, you will create product experiences essential for investors and bankers engaged in high-stakes deal processes. Your responsibilities will span the entire technology stack—from developing sleek, user-friendly interfaces to building robust backend services that facilitate modeling, data ingestion, collaboration, and workflow automation.This position is designed for builders who crave real ownership. You will contribute to feature development from inception to deployment, closely collaborating with product and design teams, while helping to lay the technical groundwork for a platform relied upon in mission-critical situations. You will face challenging tasks such as structured financial computations, document ingestion, compliance, permissions management, real-time collaboration, and performance optimization at scale.

About N1:N1 is an innovative blockchain network that is hyper-performant and horizontally scalable. Our mission is to facilitate trustless computing at the scale of the internet, revolutionizing the way digital interactions occur.Our talented team comprises individuals with diverse backgrounds from prestigious institutions such as Harvard, Carnegie Mellon University, DFINITY, VMWare, and Galaxy Digital. We are proud to be supported by leading investment firms like Founders Fund, Kraken Ventures, SALT, and Amber Group.Position Overview:We are excited to invite a Full-Stack Software Engineer Intern to join our dynamic engineering team. This full-time role will involve the development of robust front-end, server-side, and database applications, with a primary focus on blockchain technology. Ideal candidates should be detail-oriented, innovative, and possess a strong product mindset. You will take ownership of enhancing our web platforms and internal tools, ensuring they are user-friendly, secure, and high-performing.

About Sei LabsAt Sei Labs, we are pioneers in developing open-source technology for the high-performance Sei Blockchain, the first EVM Layer 1 blockchain designed for parallelization and industry-scale performance. Our unique optimizations enable Web3 applications to achieve Web2 levels of scalability and efficiency, fostering the widespread adoption of digital assets.Our talented teams are composed of industry veterans from leading companies like Google, Goldman Sachs, Robinhood, Nvidia, and Databricks, all dedicated to onboarding the next billion users into a thriving ecosystem of applications.Having raised over $30 million from prestigious investors such as Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders, we are positioned for significant growth.Discover more about us on our website and explore our documentation.About the RoleSei Labs is on the lookout for a Fullstack Software Engineer to help redefine the future of Web3 by enabling innovative, impactful applications across the Sei Blockchain. In this role, you will collaborate with a team at the leading edge of blockchain technology, working closely with our ecosystem partners to develop state-of-the-art decentralized applications (dApps) that span various Web3 domains—from decentralized exchanges (DEXs) and gaming to decentralized physical infrastructure networks (DePin), artificial intelligence, and more. If you thrive in a fast-paced, community-oriented environment and are passionate about continuous learning and rapid development, this is an exceptional opportunity to expand the frontiers of decentralized technology.

Join Flex, a rapidly growing FinTech company headquartered in New York City, as we revolutionize the rent payment process. It's 2026, and we believe that paying rent should be affordable, flexible, and hassle-free. Our mission is to empower renters with the ability to pay their rent on a schedule that aligns with their financial needs. After establishing a strong foundation of investor support and a dedicated user base, we are seeking passionate individuals to join our team and help us drive our mission forward.As a Senior Fullstack Software Engineer, you will play a crucial role in propelling our company’s growth. Your expertise will be vital in developing and scaling our platform and application experiences, ultimately facilitating our ambitious goal of achieving 10x growth.

About SomethingsAt Somethings, we are pioneering a revolutionary social wellness platform specifically designed for teens. Our mission is to create a supportive environment where young individuals can build meaningful relationships with mentors who truly understand them, are dedicated to their growth, and provide the guidance necessary for them to flourish.In the U.S., 25 million teens face mental health challenges, and each of the countless teens who engage with Somethings requires assistance. Our goal is to ensure that these individuals do not merely use the platform, but instead connect with compassionate humans who are devoted to their well-being and help them thrive.With backing from General Catalyst and esteemed healthcare and consumer investors, we are experiencing rapid growth — achieving a remarkable 1100% increase in 2025 and aiming for a fivefold growth in 2026.If you aspire to contribute to a transformative company within the mental health sector, we welcome you to join us.Role OverviewWe are seeking a Senior Fullstack Software Engineer specializing in React to join our dynamic, high-impact engineering team. You will play a pivotal role in constructing the foundational web experiences that empower our mentors and operational teams.This position offers high levels of agency, craftsmanship, and impact:You will directly influence the platform experiences that assist teens in connecting and genuinely improving their lives.What You'll DoIn this role, you will take complete ownership of essential projects that align with our strategic objectives for 2026:1. Transform our Mentor Operations Platform into a world-class experienceDeliver web experiences that are fast, reliable, and deeply human-centric.Evolve the mentor web experience from basic functionality to a cohesive, elegant, and leading-edge platform.Create user interfaces that are as intuitive and refined as the best consumer applications.Prioritize performance, accessibility, and interaction quality.2. Develop tools that safely scale our mentor operationsDesign features for mentors that enhance consistency, speed, and connection.Implement safety measures that proactively identify risks and minimize human error.Refine mentor workflows to empower users rather than overwhelm them.3. Take charge of full-stack product developmentBuild comprehensive features across React, backend services, and APIs.Engage in close collaboration with design, product, growth, and clinical operations teams.

Join Norm Ai as a Software Engineer in Applied AIAt Norm Ai, a trailblazer in Legal & Compliance AI, we manage a client portfolio exceeding $30 trillion in assets. Our innovative approach transforms legal codes into AI solutions, enabling businesses to enhance their legal and compliance operations with speed and reliability.Our cutting-edge platform merges advanced AI technology with proprietary legal reasoning systems and in-depth legal expertise, ensuring robust compliance and operational efficiency.Backed by industry giants including Blackstone, Bain Capital, and Vanguard, we have successfully secured over $140 million in funding to accelerate our growth. Our pioneering Legal Engineering initiative trains lawyers to develop and oversee specialized AI agents using our no-code tools, creating a new frontier in legal workflows powered by Large Language Models.Our technology is utilized by some of the world’s leading institutions, and we are rapidly expanding our team across various departments.Fluency in AI Required:All team members at Norm Ai are expected to be proficient in AI, utilizing it daily to enhance their work processes. Candidates should be ready to showcase their practical AI experience, including tools and outcomes, during the interview process.Your Role:As a Software Engineer specializing in Applied AI, you will be responsible for designing and developing enterprise-level AI agents to streamline complex legal and compliance workflows. This is a hands-on role where you will collaborate closely with software engineering, legal engineering, and product teams to enhance the capabilities of our automation platform.

P-1980At Databricks, we are dedicated to empowering data teams to address some of the most challenging problems in the world—from revolutionizing transportation to accelerating medical advancements. Our mission is realized through the development and operation of the premier Data Intelligence Platform, enabling our customers to extract deep insights from data to enhance their business strategies. Founded by engineers with a strong customer focus, we eagerly embrace every opportunity to tackle technical challenges, whether it’s designing cutting-edge UI/UX for data interaction or scaling our services and infrastructure across millions of virtual machines. And we’re just getting started.As a founding engineer in our New York City Engineering office, you will join a dynamic, agile team committed to innovating and creating new products from the ground up. Our aim is to harness the capabilities of Databricks in data and AI to deliver specialized AI applications catering to both technical and business users. This role offers a unique 0-to-1 environment, merging the excitement of a startup with the robust resources of a leading tech company.Your primary challenge will be to utilize the latest UX/UI technologies to develop intuitive yet powerful interfaces for complex data and workflows. Your team will adopt a UI-first and GenAI-first strategy in product development. Potential challenges might include:Creating interfaces for GenAI agents that produce intricate workflows while ensuring human oversight through transparency and inspectability.Developing advanced visualizations, such as data pipelines, data mappings, customer journey flows, and identity graphs.Implementing features that promote product-led growth via seamless onboarding and sharing capabilities.Facilitating an interactive environment for collaborative data projects at scale, with a straightforward path to production.

Why Join Moonshot AI?Envision a web that autonomously transforms itself to enhance sales, improve conversions, and accelerate growth.At Moonshot AI, we’re pioneering this future by integrating generative AI, extensive data processing, and innovative experimentation into a self-adaptive online ecosystem.As a well-capitalized, early-stage startup with grand ambitions, your role here transcends that of a typical employee — you’ll actively contribute to shaping the company’s technical and cultural foundation. If you've ever aspired to have the freedom of a founder while being supported by elite investors, this opportunity is for you.What You'll Create & LeadIn the position of Staff Software Engineer, you will serve as the technical cornerstone of Moonshot's evolution engine, responsible for designing scalable systems, steering engineering strategy, and mentoring your colleagues.Your work will blend hands-on expertise with high-level architectural insight, transforming visionary ideas into technical realities.You will:Innovate at the forefront of generative AI - develop systems that empower AI to autonomously reason, experiment, and implement tangible changes to the web.Architect the next generation of our experimental engine - ensuring it is scalable, observable, fault-tolerant, and capable of handling millions of daily events.Design and advance our backend infrastructure utilizing Python (Flask-RestX), serverless AWS, and various data pipelines (ClickHouse, Postgres, Kinesis, Firehose, S3).Lead technical strategy - establish our engineering principles and evolve the architecture across microservices, data ingestion, and LLM-driven systems.Mentor and uplift - enhance the skills of senior and mid-level engineers through code reviews, collaborative programming, and detailed design documentation.Collaborate across teams - partner with AI, product management, and data science to translate business objectives into robust systems.Prototype and expand boundaries - rapidly bring concepts to production while balancing experimentation with thoroughness.Enhance performance, security, and reliability as we scale towards SOC 2 certification and enterprise clientele.This role emphasizes technical leadership without the responsibilities of people management: pure design, significant leverage, and complete ownership.

At Atrix, we believe that breakthrough medicines begin with extensive research, vast amounts of data, and critical decisions made by leading medical teams within the foremost biopharma laboratories. These pivotal decisions dictate which treatments become available, how they are promoted to healthcare providers, and ultimately, when patients gain access to life-saving therapies.We stand at a transformative juncture. The rise of AI-driven drug discovery, precision medicine, and a surge of real-world evidence have broadened the horizons of what is achievable. Yet, the teams dedicated to translating scientific advancements into patient access are overwhelmed by unmanageable data.Our tools must evolve to meet the urgency of the moment. Atrix is pioneering AI solutions tailored for life sciences, ensuring the precision and rigor that biopharma demands.Currently collaborating with top-tier pharmaceutical companies, we are rapidly scaling our efforts, all with the singular goal of ensuring that the right treatments reach the right patients sooner.Role OverviewAs a founding member of our engineering team, you will play a crucial role in developing the Atrix AI-native platform. You will design and implement features that simplify intricate healthcare and AI workflows, crafting intuitive and user-friendly interfaces trusted by scientific, medical, and commercial teams across leading pharmaceutical organizations.From creating thoughtful front-end user experiences to building resilient backend systems, you will connect our AI core with tangible customer challenges, addressing issues that significantly enhance patient care.We are in the process of constructing a modular, intelligent platform that integrates with customer-approved data sources, transforms chaotic and unstructured data through cutting-edge AI, and delivers structured, actionable insights that facilitate decision-making in regulated environments.Your contributions will be actively utilized by medical, clinical, and commercial teams making critical decisions every day.You will encounter complex engineering challenges in the following areas:Performance — Handling extensive datasets simultaneously.Security & Privacy — Managing sensitive customer data with utmost trust.Explainability — Ensuring AI outputs are verifiable and traceable.Composable UI/UX — Designing adaptable interfaces for diverse applications, from chat interfaces to dashboards and spreadsheets.Join us in revolutionizing patient access and driving meaningful change in healthcare.

Hello from Oscar! We are excited to announce that we are looking for talented Staff Software Engineers to become an integral part of our Engineering team. At Oscar, we are pioneers in the health insurance industry, having built the first health insurance company centered around a comprehensive technology platform and a commitment to serving our members. Established in 2012, Oscar was created to offer a health insurance experience that feels like having a family doctor. About the Role We are seeking Fullstack Staff Software Engineers (with a frontend emphasis) to join various teams within our Engineering organization. In this role, you will spearhead technical initiatives to develop robust and maintainable applications, infrastructure, and interfaces designed to enhance interactions with the healthcare system for both our members and providers. You will report to a leader within the Engineering Organization (Associate Director or higher). Work Location: This position is based in our New York City office, requiring a hybrid work schedule of three days in-office each week. Thursdays are mandatory in-office days for team meetings and events, while your other two office days can be flexible to accommodate your schedule. #LI-Hybrid Pay Transparency: The base salary for this role is between $192,000 and $252,000 per year. Additionally, you will be eligible for comprehensive employee benefits, participation in Oscar's unlimited vacation program, equity grants, and annual performance bonuses.

Kepler: AI you can rely on and validate.Every AI system faces a common challenge: it interacts with data, leading to unpredictable outputs. For those making high-stakes decisions, such variability is not a minor issue—it's a dealbreaker.We have developed a framework that eliminates the chances of erroneous outputs. Our AI comprehensively interprets your intentions, while deterministic algorithms extract every statistic from credible source documents. Since the model never generates figures, it can’t produce inaccuracies. Each output is traceable back to its source, with every calculation clearly defined. Our answers are consistently defendable.Operational in real-time across a vast database of 950K+ SEC filings, 14K+ companies, 40M+ documents, and 27 global markets. Trusted by organizations where accuracy is paramount.Our architecture is versatile across domains, with finance being our initial focus due to its critical challenges. Future applications will include healthcare, legal, and insurance sectors. We are not merely creating a financial product; we are establishing the verification backbone for the entire AI ecosystem.Founded by Vinoo Ganesh, a former Palantir executive and Head of Business Engineering at Citadel, alongside Dr. John McRaven, who has a strong background at Palantir and holds a Ph.D. in Physics, our team is backed by prominent figures from OpenAI, Facebook AI Research, and more.Your RoleAs an Agentic Systems Engineer, you will develop the foundational infrastructure that supports Kepler's AI research platform. Your responsibilities will include creating distributed execution frameworks capable of managing thousands of parallel agents, quality evaluation systems, contextual management tools to enhance agent performance, and systems to track the provenance of every output.This position is tailored for engineers eager to innovate at the cutting edge of AI systems, constructing the infrastructure necessary for enterprises to trust their automated agents for critical decision-making.In your first 90 days, you will:Launch your first production agent system with mentorship from senior engineers.Construct and implement infrastructure to facilitate authentic financial research workflows.Witness the impact of your code as agents perform research within leading financial institutions.Take command of a vital agentic system from its architecture to its deployment.