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Backend Software Engineer (Evals)

San Francisco💼 Full-time🗓 2025-12-23 → 2026-09-26

Core

Design and build evals infrastructure to measure the quality of OpenAI's support automation systems and knowledge creation.

Role type

Senior Backend Software Engineer (ML/LLM Evals)

Builds

Robust backend services, APIs, and continuous evaluation monitoring frameworks for intelligent automation.

Domain

AI Research & Deployment / LLM Evaluation Infrastructure

Deliverable

production ML models

Required skills

Backend engineering, distributed systems design, API development, data pipeline scaling, LLM evaluation methods, multi-agent workflow design, production eval creation

Preferred skills

Experience with Python, FastAPI, Postgres, building AI agents, long context handling, tool use patterns

Technologies

Python, FastAPI, Postgres

Responsibilities

Design reliable and reproducible eval pipelines; build infrastructure for regression and drift monitoring; maintain backend services for intelligent automation; integrate and structure data for AI workflows; collaborate with data science and research teams; own the full development lifecycle of backend systems.

Seniority

Senior, hands-on IC

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