Software Engineer, Web Layer

Details

The Codex Web Layer team provides web-based systems and user experiences across the stack, from the Electron-like application framework powering the application to the user-facing in-app browser.

The role involves designing and implementing infrastructure and end-to-end features for the Codex desktop client application, helping define a hybrid agentic and interactive web browser. The team works across the full stack, from low-level operating system integration to high-level interaction design. The role is based in San Francisco and follows a hybrid work model requiring three days in the office per week.

Responsibilities

• Partner with product and design to conceive, design, and build Codex web browsing features for macOS and Windows.
• Focus primarily on the backend C++ layer and Chromium, while contributing to features that span the full stack, including TypeScript.
• Partner with the wider Codex team to deliver a high-performance, stable, and secure application platform for client development.
• Design and implement APIs, primarily in C++.
• Build infrastructure supporting deployment using Python, TypeScript, and agentic skills.
• Work with a small, experienced team of engineers on a critical and rapidly growing product.

Requirements

• Significant experience building technically complex features end-to-end.
• Strong C++ development skills, particularly in browser environments such as Chromium and Electron.
• General knowledge of web development and TypeScript is helpful but not required.
• Ability to thrive in a fast-paced, ambiguous environment.
• Clear and concise communication across different roles within an organization.
• Self-directed approach to identifying important work and executing it end-to-end.

Benefits

• Base salary of $255,000–$405,000 per year.
• Equity, performance-related bonuses for eligible employees, and benefits.
• Medical, dental, and vision insurance, with employer contributions to Health Savings Accounts.
• Pre-tax accounts for health, dependent care, and commuter expenses.
• 401(k) retirement plan with employer match.
• Paid parental, medical, and caregiver leave.
• Paid time off, company holidays, office closures, and sick or safe time.
• Mental health and wellness support.
• Employer-paid basic life and disability coverage.
• Annual learning and development stipend.
• Daily office meals and eligible meal delivery credits.
• Relocation support for eligible employees.
• Additional benefits may include charitable donation matching and wellness stipends.