# FullStack Software Engineer, Codex App
**Company:** [OpenAI](https://hotfix.jobs/companies/openai)
**Location:** San Francisco, CA
**Salary:** $230K-$385K
**Skills:** TypeScript, Node.js, Electron, Rust, Ipc, Codex Cli, Developer Tools, Cli Integrations, Ide Extensions, Observability
**Posted:** 2026-02-18
> Build and evolve the Codex desktop app and IDE extension as a full stack engineer, owning UI to Rust service integrations via TypeScript/Node/Electron. Focus on robust IPC, orchestration, reliability, and product workflows for developers.
## Job Description
## 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).
**Apply:** https://hotfix.jobs/jobs/fullstack-software-engineer-codex-app-at-openai-5c595ff6-7b49-4ca9-a042-67a6d4837d22
**Canonical:** https://hotfix.jobs/jobs/fullstack-software-engineer-codex-app-at-openai-5c595ff6-7b49-4ca9-a042-67a6d4837d22