About this role
OpenAI has a vacancy for the role of Software Engineer, API Frontiers in New York City. This is a full-time position. The listing was posted on Sep 11, 2026. PakkiNaukri collects this listing from the employer's own posting and re-checks it — the employer's full description and the application itself are on the original listing, linked from this page.
From the employer's listing (short excerpt)
About the Team
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. Working closely with Research, Safety, Codex, and other API teams, we bring new model capabilities into production and improve them through developer feedback.
About the Role
We are looking for a backend software engineer to build and operate the services behind the Responses API. You will shape API behavior, bring new capabilities from research into production, and make long-running agent workflows dependable and fast. The work combines distributed systems engineering with product judgment: designing useful developer interfaces, managing staged rollouts, and following production issues through to durable fixes.
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.