Software Engineer, Codex App

We're hiring a Full Stack Software Engineer to build and evolve the systems that power the Codex desktop app and IDE extension. "Full stack" here means owning flows from UI Node/TypeScript backend layers IPC/process orchestration integration with Rust services.

This is a product-minded role. You'll help define workflows, pick the right abstractions, and ship features that feel fast and dependable in real developer environments. What You'll Do

• Build end-to-end features across the Electron app (UI + Node/TypeScript backend layers).
• Design robust integrations with the Codex CLI and app server (Rust), including process lifecycle, streaming output, and error handling.
• Own IPC architecture and patterns (renderer/main boundaries, message schemas, backpressure, safety, debugging).
• Build systems for orchestration: long-running tasks, incremental progress updates, cancellation, retries, and state synchronization.
• Improve reliability, observability, and performance (logging/tracing/metrics, profiling, crash/debug tooling).
• Partner with design and product to turn ambiguous needs into crisp, shippable workflows.

• Have strong TypeScript/Node fundamentals and enjoy owning product features end-to-end.
• Have experience with Electron or desktop app architecture (renderer/main separation, performance pitfalls, packaging/release concerns).
• Are comfortable integrating with native processes/services (e.g., Rust) and designing clean, testable boundaries.
• Know (or are excited to learn) IPC patterns and distributed-systems-like thinking applied locally: message ordering, buffering, backpressure, retries, idempotency.
• Bring strong product judgment and enjoy iterating based on real usage and feedback.
• Have experience with developer tools, CLIs, or IDE integrations (nice-to-have).

$230K - $385K medical insurance, dental insurance, vision insurance, parental leave, paid time off, paid holidays, 401(k), retirement plan United States, California, San Francisco Apr 11, 2026 About the Team

The Codex App team owns the desktop application and IDE extension that bring Codex into developers' daily workflows. We build product experiences end-to-end, and we care equally about usability, performance, and reliability.

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity., At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.