Senior Software Engineer—AI Product & Platform Engineering

Senior Software Engineer—AI Product & Platform Engineering

We build AI‑powered products that improve customer workflows—speed, accuracy, confidence. As we deliver outcomes, we extract repeatable patterns into an internal AI engineering platform that makes the next outcome faster and safer.

This is not a "build it and they will come" platform role; platform adoption is earned through shipped product value.

This role reports to a Principal Software Engineer. Remote with overlap within +/-2 hours of America/Chicago.

• Use the right tool for the job; our current default is a modern Type Script + React full‑stack (server rendering, RSC‑style patterns, streaming), and we stay flexible as we learn.
• Build AI features with disciplined patterns: tool calling, structured outputs, grounding, and streaming UI.
• Partner with product, design, and SMEs to define outcomes, validate assumptions, and iterate quickly.
• Turn lessons from shipped features into reusable "paved road" primitives (eval harnesses, guardrails, shared tool/prompt patterns).
• Build evaluation + release loops (tests, golden datasets, regressions, targeted human review; LLM grading where it fits).
• Own reliability, performance, and cost; instrument with Open Telemetry and define SLOs for key flows.
• Enforce security and privacy by design (safe tool access, auth
  
  Z, auditability, prompt‑injection mitigations, PII handling).

• Ship customer‑impacting AI features with telemetry and tests.
• Improve eval coverage/quality and move a key metric (grounding/tool‑use, latency, reliability, or cost).
• Deliver a reusable platform primitive that gets adopted via shipped features (not a standalone framework).

• Senior‑level Type Script + React experience in production systems.
• Experience building React full‑stack apps (routing, server rendering, server components/actions, backend‑for‑frontend patterns).
• Async + streaming experience (SSE/streams; cancellation/back pressure awareness).
• Comfortable on macOS and Linux; fluent with CLI for local dev, debugging, automation, and as an API.
• Strong Git discipline (PR workflows, code reviews, conventional commits, clean commits) and ability to raise the bar through review.
• Strong testing discipline and ability to build testable abstractions.
• Strong API integration experience; ability to ship, measure, and iterate in ambiguity.

• Experience with the Vercel AI SDK (Core + UI) for streaming experiences, tool calling, and chat UX patterns.
• LLM integration experience (OpenAI/Anthropic/Bedrock or similar) with tool calling / structured outputs.
• Experience building internal platform primitives with real adoption (SDKs, shared libraries, paved roads).
• Experience with AI evaluation frameworks and regression testing for model outputs.
• Observability and/or security depth for AI systems.

• You're outcome‑driven: ship, measure, iterate.
• You build reusable components by proving the use‑case in real product work.
• You're energized by a startup mentality: nimble execution, fast learning, pivot readiness.

Remote (US‑based) | Full‑time | Timezone: +/-2 hours of America/Chicago

AAPC is an Equal Opportunity Employer. This company is committed to fairness and equal opportunity in our hiring practices. We do not discriminate on grounds unrelated to a candidate's ability to perform the duties of the job. Our focus is on finding the best person for each role, based on merit and fit, to ensure success both for our company and for the individual's professional growth.