The opportunity
API Frontiers turns OpenAI’s frontier models into production APIs that developers can use to build reliable products and agents. We own the core path connecting models to developers through the Responses API, with a focus on safety, reliability, and speed.
What you'll do
Design, build, and operate APIs and backend services that bring frontier model capabilities to developers.
Partner with Research, Safety, Codex, and API teams to define API behavior and deliver safe, staged launches.
Build API capabilities for agent workflows, including task delegation,: context sharing, and parallel execution.
Strengthen long-running request reliability across timeouts, cancellation,: streaming, and background execution.
Improve request-processing performance and tail latency through profiling,: efficient systems code, and persistent connections.
Turn developer feedback and production failures into better observability,: diagnostics, and lasting product improvements.
What they're looking for
- + years of experience building and operating backend services or developer-facing APIs in production.
- Strong software engineering fundamentals, with practical knowledge of: distributed systems, concurrency, and asynchronous execution.
- Ability to diagnose production failures and performance bottlenecks using observability data and profiling.
- Product judgment and developer empathy, with a track record of translating: complex capabilities into clear, dependable APIs.
