Senior Full Stack Engineer, AI Platform

About 9amHealth

9amHealth is an AI-enabled virtual specialty care platform focused on managing high-cost chronic conditions  company partners with employers, health plans, and pharmacy benefit managers to deliver comprehensive, cost-effective medical care for individuals living with obesity, diabetes, hypertension, and dyslipidemia. Members receive access to specialized clinicians, including endocrinologists, obesity medicine specialists, and clinical pharmacists, at-home lab testing, prescription medications, and lifestyle support.

9amHealth was founded in 2021 and is backed by leading healthcare investors like Define Ventures, Semper Virens, 7

Wire Ventures, and The Cigna Group Ventures.

We're looking for a highly skilled Senior Product Engineer who is excited about building in an AI native, agentic world. This is not a traditional frontend or backend role! It’s for engineers who:

• use AI coding tools (Claude Code, Cursor, Copilot, etc.) as a force multiplier,
• think in terms of systems, workflows, and agents, not just endpoints and screens,
• can turn ambiguous product problems into working, production-ready solutions,
• want to help evolve our platform toward an agent-driven future in healthcare.

You’ll work closely with Product, Design, and other engineers to re-imagine how our systems are built, extended, and operated as AI becomes a first class part of the development process.

• Design, implement, and operate backend and fullstack systems that incorporate LLMs, tools, and agents as core components;
• Build agentic workflows (multi-step, tool using, stateful systems) that solve real product and operational problems;
• Integrate LLMs safely and reliably into production systems, with attention to observability, cost, and failure modes.

• Use modern AI coding tools (e.g. Claude Code/Codex/Pi/Cursor) to accelerate development, refactoring, and exploration;
• Set patterns and standards for how AI is used in day to day engineering work;
• Help the team move faster without sacrificing quality or clarity.

• Collaborate closely with Product Management, Design, and other stakeholders to shape solutions, not just implement specs;
• Translate high level goals into technical architecture and execution plans;
• Contribute to roadmap discussions with a strong systems and platform perspective.

• Design APIs, services, and data models (primarily backend leaning);
• Ensure reliability, security, privacy, and scalability in a regulated healthcare context;
• Operate and observe the system’s behaviour in the real world;
• Improve developer experience and internal tooling where it unlocks leverage.

• 7+ years of experience as a Software Engineer, with strong knowledge of major parts of our tech stack (AWS, Java, Typescript)
• Strong experience in building with LLMs in production, not just prototypes
• Clear enthusiasm for the capabilities and opportunities of AI and agentic systems
• Strong system design skills and comfort working in ambiguous problem spaces
• Ability to communicate clearly with technical and non-technical stakeholders

• Experience designing, building, and operating long running workflows, background jobs, or distributed systems
• Familiarity with healthcare, regulated products, or safety critical systems
• Startup or fast moving product environment experience

• You’re curious and opinionated about where software development is going
• You ship and you iterate based on real world feedback
• You don’t wait for perfect specs; you help create them!
• You see AI as a new abstraction layer, not a gimmick

Compensation:
This role offers a salary of up to $175,000 per year, depending on experience and qualifications.

At 9amHealth, you'll join the exciting environment of a startup with the stability of highly experienced founders that have successfully built a business from scratch. We foster a collaborative learning mindset and a passion for improvement. You'll work with a brand-new product alongside a small, flexible team of people eager to shape technology,…