Software Engineer, Codex App

About this role

Join OpenAI's Codex App team to build full-stack features for a TypeScript/Electron desktop application and IDE extension. You'll own end-to-end product flows from UI through Node backends to Rust service integrations, focusing on reliability, performance, and developer experience.

What you'll do

• Develop end-to-end features across Electron app UI and Node/TypeScript backend layers
• Design integrations with Codex CLI and Rust app server, including process lifecycle and error handling
• Own IPC architecture, message schemas, and renderer/main process boundaries
• Build orchestration systems for long-running tasks, progress updates, cancellation, and retries
• Improve observability and performance through logging, tracing, metrics, and profiling
• Partner with design and product to translate requirements into shippable workflows

What they're looking for

• TypeScript and Node.js
• Electron desktop app development
• IPC and inter-process communication patterns
• Rust service integration and native process handling
• Distributed systems thinking (backpressure, idempotency, retries)
• Performance optimization and debugging
• Developer tools or CLI experience