AI & Machine LearningDirect Ashby career site

Full Stack Software Engineer, Codex

Location: San Francisco, CA (Remote) · On-site
Job type: Full-time
Level: Senior
Listed: 30 days ago

Skills & highlights for this role

TypeScript
Rust
AI-assisted development tools
developer tools

Also useful

open-source software

About the Role

We’re hiring a Full Stack Software Engineer to help invent the next generation of AI-powered software development workflows.

“Full stack” in this role means much more than traditional frontend and backend development. You'll own complete product experiences, spanning user interfaces, workflow orchestration, agent and prompt design, backend systems, and cloud infrastructure.

This is a highly product-oriented role. You'll work directly on the workflows developers use every day, identifying bottlenecks and rethinking how software gets built in a world where AI agents are active participants in the development process. The features you ship will influence how developers around the world write, review, test, and maintain software.

In this role, you will

Build end-to-end product experiences that span frontend applications, backend services, agent workflows, cloud infrastructure, and developer tooling.
Design AI-powered workflows that generalize across a wide variety of software engineering teams, languages, codebases, and development practices.
Discover and implement novel ways to apply AI to eliminate friction throughout the software development lifecycle.
Partner closely with product, design, and research to understand developer needs and rapidly translate insights into shipped product improvements.
Work directly with users - including developers at OpenAI, open-source contributors, startups, and large enterprises - to understand pain points and validate solutions.
Improve the reliability, observability, scalability, and performance of the systems and workflows you build.

You might thrive in this role if you have

Strong software engineering fundamentals and experience building production systems.
Experience with TypeScript, Rust, or a similar systems or application programming language.
Deep familiarity with modern software development tools, workflows, and engineering practices.
Experience using AI-assisted development tools and a strong intuition for their strengths, weaknesses, and emerging opportunities.
A desire to own products and features end-to-end, from conception through launch and iteration.
Strong product judgment and a bias toward learning from real user feedback.
Creativity in reframing problems, challenging assumptions, and inventing new workflows rather than simply optimizing existing ones.

Additional information

The ideal candidate is someone who loves building developer tools, thinks deeply about how software gets built, and is excited by the opportunity to redefine those workflows from first principles in the age of AI.

About the Team

The Coding team is reimagining how software is built in the AI era. We build tools and workflows that help software engineers work faster, tackle more ambitious projects, and spend less time on repetitive tasks.

AI has already transformed how code is written, but software engineering extends far beyond coding. Our mission is to apply AI across the entire software development lifecycle (SDLC) - from design and implementation to code review, testing, debugging, issue remediation, maintenance, documentation, and user support.

The team is also responsible for developer-facing Codex experiences including the Codex IDE Extension and the terminal interface, which are used daily by developers ranging from individual open-source contributors to some of the world’s largest engineering organizations.

The team also works closely with the open-source software community, building tools that help maintainers and contributors manage increasingly complex projects. We believe AI can make open-source development more sustainable by reducing the operational burden of reviewing contributions, triaging issues, maintaining quality, and supporting growing communities.

By building the future of software development, we're helping advance OpenAI's mission of ensuring that the benefits of AI reach people around the world.

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.

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.

Equal opportunity and legal notices

At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

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.

We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link

Read the original posting

From OpenAI's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

Rolev.ai is a job search and application tool for US job seekers. For this Full Stack Software Engineer, Codex role at OpenAI, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

See how you fit
Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.
Tailor without inventing
Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.
Draft the full kit
Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.
1-Click Extension Autofill
The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.

Start free with 5 tailored applications a month Chrome extension For AI assistants Pricing How Rolev.ai compares Application guides

Similar roles

All Software Developer jobs

Common questions

Where is the Full Stack Software Engineer, Codex job at OpenAI located?

Yes, this Full Stack Software Engineer, Codex opening at OpenAI is listed as San Francisco, CA (Remote) (On-site). Always check OpenAI's application page for specific state eligibility or relocation policies.

What qualifications are required for Full Stack Software Engineer, Codex at OpenAI?

For the Full Stack Software Engineer, Codex role, OpenAI highlights experience with TypeScript, Rust, AI-assisted development tools, developer tools. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Full Stack Software Engineer, Codex position at OpenAI?

This listing links directly to OpenAI's Ashby application page. You can apply directly on OpenAI's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.

Tailor resume & apply Company site