Senior Platform & AI API Engineer

Humana; Chicago (IL); Remote; USD 128,000 - 176,000; Full time

Job summary

Humana, CenterWell’s AI engineering initiative, seeks a Senior Full Stack Engineer to design and build a scalable platform layer connecting AI capabilities, data systems, and product frontends. You will shape API design, security, and deployment practices to serve care teams and patients across centers, with a focus on secure, compliant, high-availability services.

The role emphasizes ownership of complex backend systems end-to-end, collaboration across teams, and hands-on work with TypeScript,

Qualifications

• BS or MS in Computer Science, Engineering, or a related field (or equivalent experience).
• 5+ years of software engineering experience with deep expertise in backend and platform engineering.
• Strong proficiency in TypeScript and/or Python for API and service development.
• Proven track record building scalable, production-grade REST or GraphQL APIs.
• Solid understanding of authentication (OAuth2, OIDC), API security patterns, and authorization model design.
• Working knowledge of HIPAA requirements, particularly secure transmission, storage, and access control for PHI.
• Experience with Next.js and React sufficient for full-stack feature contribution.
• Demonstrated ownership of complex backend systems end-to-end, from architecture through production operation.
• Hands‑on experience with AI‑assisted development tools and LLM coding harnesses (Claude Code, Pi Agent, Cursor, Codex, or similar)

Responsibilities

• Platform and API Architecture: Design and lead development of core backend services, REST and GraphQL APIs, and service-to-service integrations that connect all layers of Centerwell's AI product stack.
• Security and Compliance by Design: Establish patterns for authentication, authorization, rate limiting, PHI access control, and audit logging. Ensure HIPAA compliance is embedded in platform design from day one—not bolted on after the fact.
• AI and LLM Integration Patterns: Define and implement reusable patterns for integrating AI capabilities into product APIs, including LLM routing, streaming responses, tool orchestration, and model output handling.
• Observability and Reliability: Build logging, monitoring, and alerting infrastructure so the platform is operable and debuggable at scale.
• Full-Stack Feature Delivery: Contribute to product feature development end-to-end using TypeScript and Next.js, from server-side APIs to rendered UI.
• Architecture Reviews and Standards: Drive architecture reviews and define backend engineering standards that the full engineering team builds on.

Skills

Software engineering 5+ yrs

TypeScript API development

REST/GraphQL APIs

OAuth2/OIDC security

HIPAA security

Next.js & React

Backend ownership

AI/LLM tooling

Education

B.S./M.S. in CS or related field

Job description

Humana, CenterWell’s AI engineering initiative, seeks a Senior Full Stack Engineer to design and build a scalable platform layer connecting AI capabilities, data systems, and product frontends. You will shape API design, security, and deployment practices to serve care teams and patients across centers, with a focus on secure, compliant, high-availability services.

The role emphasizes ownership of complex backend systems end-to-end, collaboration across teams, and hands-on work with TypeScript,