AI Application Engineer (AI FDE)

The Role

You'll build the AI that powers the product's companion — turning LLMs and agents into a warm, reliable, safe product experience. This is a hands-on, ship-fast, close-to-the-user role: you'll build AI features, watch how real users use them, and iterate relentlessly — while also pitching in on regular full-stack work across our codebase. Level: Mid–Senior · Full-stack (Angular / NestJS / Postgres) with applied-AI/LLM depth · "Forward deployed", close to users.

Why This Role

• Build LLM-powered features and agents that make our companion genuinely helpful (prompting, RAG, tool-use, orchestration)
• Design guardrails and escalation so the product stays safe, holds the non-medical line, and hands off to humans when needed
• Build evals that measure conversation quality, tone, and safety — not just correctness
• Ship AI features end to end in our Angular / NestJS / Postgres stack, from the model layer to the user-facing experience
• Iterate quickly on real usage; own AI features from prototype to production
• Handle sensitive health data responsibly (HIPAA-aware)

What You Bring

• Hands-on experience with Angular, NestJS, and Postgres — or proven ability to ramp into them quickly; this is a full-stack role regardless of specialty
• Hands-on experience building LLM applications (agents, RAG, prompt/context engineering, APIs)
• Ability to ship AI features end to end and contribute to general full-stack work
• A product mindset and bias to ship — you care how real users experience the AI
• Instinct for AI safety, reliability, and evaluation
• Bonus: conversational/voice AI, fine-tuning and evals, healthcare or safety-critical AI, MCP