Senior AI Engineer

Remote, United StatesFull-time$190,000 – $250,000 / Annual

Atria is a revolutionary preventive healthcare movement built around one question: what is biologically possible, now and in the future
Atria delivers comprehensive, personalized preventive care designed to extend healthy lifespan through meticulous screening, advanced therapeutics, and extraordinary compassionate care
Atria is being built ground-up as a technology-forward, AI-native preventive medicine platform

Own the design, development, and production deployment of the LLM-powered systems that put AI directly in front of clinicians and members
Work end-to-end across orchestration, retrieval, evaluation, and deployment on a data estate few organizations can match
Set technical direction for AI engineering at Atria, from architecture decisions to evaluation and observability standards

Architect and ship production AI systems end-to-end for clinical decision support, document understanding, and agentic medical companions
Design agentic workflows with custom skills and harnesses, using frontier and self-hosted LLMs where appropriate
Build evaluation infrastructure (golden datasets, LLM-as-judge, regression tests, online A/B evaluation) that gates every model and prompt change
Own production health: observability, prompt versioning, drift detection, cost monitoring, and PHI-safe logging
Operationalize models trained by the AI Scientist team and mentor other engineers through code review and design docs

4+ years hands-on experience building and operating LLM-powered or production ML systems
Strong Python skills and deep familiarity with a production backend framework (FastAPI, Flask, or equivalent)
Hands-on experience with LLM orchestration, function/tool calling, and retrieval system design
Working knowledge of a cloud data warehouse (Snowflake strongly preferred) and modern data tooling (dbt, Dagster, Airflow)
Healthcare, clinical informatics, or other regulated domain experience a strong plus