Software Engineer, API Frontiers

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New York City Remote Full-time$266k–$445k / year Posted 30+ days ago

Above market. This role pays above the $217k median for similar USD roles (825 comparable postings in our corpus).

In this role, you will: * 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…

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