Software Engineer, Web Layer

About this role

OpenAI is seeking a Software Engineer to build web-based systems and features for the Codex desktop client application. You'll work across the full stack—from low-level OS integration to high-level UI—designing and implementing infrastructure for a hybrid agentic/interactive browser on macOS and Windows.

What you'll do

• Design and build end-to-end features for Codex desktop browsing capabilities, primarily in C++ and Chromium
• Partner with product and design teams to define and develop hybrid agentic/interactive web browser functionality
• Develop high-performance APIs and infrastructure for client applications using C++, Python, and TypeScript
• Ensure application stability, security, and performance across the platform
• Collaborate with a small team of experienced engineers on a rapidly growing product
• Identify and execute important technical work independently across the full stack

What they're looking for

• C++ development with browser environment experience (Chromium, Electron)
• End-to-end complex feature development
• Full-stack development capabilities
• TypeScript and web development knowledge
• API design and implementation
• Cross-functional communication
• Self-directed problem solving
• macOS and Windows platform experience

Benefits

• Hybrid work model: 3 days per week in San Francisco office
• Relocation assistance for new employees
• Work with cutting-edge AI technology at OpenAI
• Small, experienced engineering team environment
• Opportunity to shape emerging agentic browser technology