Software Engineer, Web Layer
Software Engineer · Senior · Full Time
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Role
What you'll do.
OpenAI is seeking a highly skilled Software Engineer for the Codex Web Layer team, focusing on developing a sophisticated hybrid web browser application. The ideal candidate will design and implement complex web infrastructure across macOS and Windows, working closely with product and design teams to create innovative browsing features using low-level system integration and advanced interaction design.
Responsibilities
- Web Layer Infrastructure Development: Design and implement end-to-end infrastructure for Codex desktop client application across macOS and Windows platforms
- Cross-Stack Feature Implementation: Develop features spanning backend C++ layer, Chromium integration, and TypeScript components
- API Design and Implementation: Create robust API designs primarily in C++, supporting deployment infrastructure using Python, TypeScript, and agentic skills
- Collaborative Product Development: Partner closely with product and design teams to conceive and build innovative web browsing features
Qualifications
What we look for.
Technical
C++ Development
Strong expertise in C++ programming, with specific experience in browser environments like Chromium and Electron
Cross-Platform Development
Experience developing applications for macOS and Windows platforms
Web Technologies
General knowledge of web development and TypeScript (helpful but not required)
Education
Computer Science Background
Degree in Computer Science, Software Engineering, or related technical field preferred
Experience
Complex Feature Development
Significant experience building technically complex features end-to-end
Systems Integration
Understanding of low-level OS integration and high-level interaction design
Skills
Required
C++
Advanced proficiency in C++ programming language
Browser Environment Development
Experience with Chromium and Electron frameworks
Preferred
TypeScript
Nice to haveKnowledge of TypeScript for web development
Python
Nice to haveFamiliarity with Python for infrastructure development
Tech stack
Languages
Frameworks
Tools
Other
Compensation
Pay and benefits.
Base·USD 255,000 – 405,000
Equity·Stock options
Benefits
Equity Compensation
Stock options available as part of total compensation package
Hybrid Work Model
3 days per week in San Francisco office, with flexible remote options
Relocation Assistance
Support for new employees moving to San Francisco
Process
Interview steps.
- 01
Initial Screening
Review of application and resume by hiring team
- 02
Technical Phone Screen
Discussion of technical background, experience with C++ and browser environments
- 03
Coding Challenge
Hands-on technical assessment focusing on C++ and systems development skills
- 04
Onsite/Virtual Interviews
Multiple rounds with engineering team, including technical deep dives and system design discussions
- 05
Final Interview
Meeting with team leadership to assess cultural fit and long-term potential
Full posting
Original listing.
About the Team
The Codex Web Layer team provides the web-based systems and user experiences for Codex across the entire stack, from the Electron-like application framework that powers the application, to the user-facing in-app browser.
About the Role
In this role, you will be responsible for designing and implementing infrastructure and features end-to-end for the Codex desktop client application. You will help define what it means to be a hybrid agentic/interactive web browser. The team embodies “full stack” development from the lowest-level OS integration to the highest-level interaction design.
This role is based in San Francisco. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.
In this role you will:
Partner closely with product and design to conceive, design, and build features for Codex web browsing features on macOS and Windows. This role will focus mostly on the backend C++ layer and Chromium, but many features cross the full stack including some TypeScript.
Partner with the wider Codex team to deliver a high-performance, stable, and secure application platform for client development. This includes API design and implementation (mostly in C++) and the infrastructure that supports deploying it (in Python, TypeScript, and agentic skills).
Work with a small, experienced team of engineers on this critical and rapidly growing product.
You might thrive in this role if you:
Have significant experience building technically complex features end-to-end.
Are a strong C++ developer, especially with experience in browser environments like Chromium and Electron. Since this role is more backend focused, general knowledge of web development and TypeScript is helpful but not required.
Thrive in a fast-paced, ambiguous environment.
Communicate clearly and concisely across many different roles in the organization.
Are self-directed, identifying important work and executing it end-to-end.
About OpenAI
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.
We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.
For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement.
Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.
To notify OpenAI that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance.
We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link.
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