Backend Software Engineer at OpenAI

Location: San Francisco, California
Type: Full-time
Posted: Sep 19, 2025

Description

OpenAI's Support Automation team is seeking a Backend Software Engineer to design and build an evaluations infrastructure for their support automation. The role involves leveraging cutting-edge AI models, including OpenAI's public and pre-released technologies, to create robust systems and backend services. The engineer will collaborate with Data Science and Research partners to develop scalable evaluation pipelines and continuous monitoring frameworks, ultimately enhancing support automation across the organization.

Required Skills

Python
FastAPI
Postgres
Distributed Systems
API Design
Data Processing
AI Agents
LLM Evaluation
ML Model Performance
Backend Engineering

Additional Information

Required Previous Experiences: 4+ years of backend engineering experience at product-driven companies (excluding internships)
Preferred Qualifications: Proficiency in backend technologies. Our tech stack includes Python, FastAPI, and Postgres
Experience designing and scaling distributed systems, APIs, or data processing pipelines
Have experience building AI agents or applications, including designing evals and improving performance through prompting or scaffolding
Are familiar with evaluation methods for LLMs and have worked with patterns like multi-agent workflows, tool use, or long context.
Experience creating production evals and/or measuring performance of ML/LLM models at scale

About OpenAI

OpenAI

artificial general intelligence

We believe our research will eventually lead to artificial general intelligence, a system that can solve human-level problems. Building safe and beneficial AGI is our mission.

Open roles: 827
New in 30 days: 243
Founded: 2015

Who they serve

OpenAI offers ChatGPT for Healthcare, a secure AI workspace supporting HIPAA-compliant use with trusted clinical search. OpenAI offers workspace agents that teams can create to run real workflows on their own.

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