Software Engineer, Codex App

About the Role

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.

You Might Thrive Here If You

• 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).