Senior Full Stack Engineer

Role Description

We're looking for a highly skilled Senior Full Stack 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.

What You’ll Do

• Build AI Native Systems
  • 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.
• Engineer with AI as a Partner
  • 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.
• Product Driven Engineering
  • 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.
• Own the System End to End
  • 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.

Qualifications

• 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.

Requirements

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

Benefits

• Comprehensive benefits package, including health, dental, and vision insurance.
• Flexible PTO and work from home options.
• Professional development budget and support for continuing education.
• Opportunity to make a meaningful impact on chronic disease management and patient outcomes.
• Collaborative, mission-driven culture focused on improving healthcare accessibility and affordability.

Company Description

9amHealth is an AI-enabled virtual specialty care platform focused on managing high-cost chronic conditions at scale. The 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.

Founded in 2021 and backed by leading healthcare investors like Define Ventures, SemperVirens, 7Wire Ventures, and The Cigna Group Ventures.