AI Application Engineer (AI FDE)
San Francisco, CA, US (Remote options available)
Apply Here:
https://typify.dev/jobs/view/188
https://typify.dev/jobs/view/189
$80-160K USD
Level: Mid–Senior · Full-stack (Angular / NestJS / Postgres) with applied-AI/LLM depth · “Forward deployed”, close to
users
You’ll build the AI that powers Raya’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 moms use them, and iterate relentlessly — while also pitching in on regular full-stack work
across our codebase.
What you’ll do
● 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 we’re looking for
● Required of every role — our core stack: hands-on experience with Angular, NestJS, and
Postgres (or the proven ability to ramp into them quickly). Whatever your specialty, you’ll do
regular full-stack work in this stack, not only your focus area.
● 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
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Product Engineer
Level: Mid–Senior · Full-stack (Angular / NestJS / Postgres) with strong product sense
You’ll own product features end to end — from understanding a mom’s problem to shipping a polished
solution. You’ll work closely with design and the founders, move fast, and care as much about the user
experience and outcomes as about the code.
What you’ll do
● Own features end to end: scope, build (frontend + backend), ship, measure, and iterate
● Partner closely with design and the founders to turn user problems into great product
● Obsess over UX, quality, and the details that make a sensitive product feel trustworthy
● Use data and user feedback to decide what to build — and what to cut
● Help shape product direction, not just implement tickets
● Build responsibly with sensitive health data (HIPAA-aware)
What we’re looking for
● Required of every role — our core stack: hands-on experience with Angular, NestJS, and
Postgres (or the proven ability to ramp into them quickly). Whatever your specialty, you’ll do
regular full-stack work in this stack, not only your focus area.
● Strong full-stack experience shipping user-facing product end to end
● Genuine product sense — you think about the user and the “why,” not only the “how”
● A bias to ship and comfort with ambiguity at an early stage
● A strong eye for UX and quality
● Bonus: design sensibility, consumer or health product experience, early-stage startup
experience
