Desktop UI Engineer for AI Agent Workflows

OpenAI; Greater London; On-site; GBP 80,000 - 120,000; Full time

Job summary

OpenAI is seeking a Frontend Software Engineer to craft a top-tier desktop experience for the Codex desktop app and IDE extension. You will collaborate with design to prototype, iterate, and polish new interaction models for human-agent collaboration, turning ideas into reliable, high-performance UI.

You’ll define frontend architecture and own state, rendering, and performance while partnering with platform and backend teams to deliver cohesive product flows.

Qualifications

• Strong experience with modern frontend stacks (React, TypeScript) and a high bar for UI craft.
• Love design engineering: sweating the details while keeping velocity.
• Have built desktop-caliber product experiences (Electron or similar), and care about performance, responsiveness, and “it just feels right.”
• Enjoy exploring ambiguous problems and iterating rapidly with design and product.
• Think in end-to-end workflows, not isolated screens.
• Have experience with developer tools or IDE extensions (nice-to-have).

Responsibilities

• Build and ship polished, high-performance UI across the Codex desktop app and IDE extension.
• Partner tightly with design to turn prototypes into production-quality experiences (layout, motion, typography, interaction details).
• Iterate on future interfaces for interacting with agents: delegation, task timelines, status/progress, handoffs, review, and control surfaces.
• Own frontend architecture decisions (component systems, state management, navigation, rendering performance).
• Improve quality and reliability through testing, instrumentation, and thoughtful UX for failure modes.
• Collaborate with platform/model/backend partners to integrate new capabilities into cohesive product flows.

Skills

React

TypeScript

UI craft

Tools

Electron

Job description

OpenAI is seeking a Frontend Software Engineer to craft a top-tier desktop experience for the Codex desktop app and IDE extension. You will collaborate with design to prototype, iterate, and polish new interaction models for human-agent collaboration, turning ideas into reliable, high-performance UI.

You’ll define frontend architecture and own state, rendering, and performance while partnering with platform and backend teams to deliver cohesive product flows.