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Full Stack Software Engineer, Codex

OpenAI· Applied AI
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Hybrid (San Francisco)$255k - $405kFull-timePosted 4mo ago

About the role

Full Stack Software Engineer role focused on building AI-powered software development workflows, spanning frontend, backend, agent workflows, cloud infrastructure, and developer tooling to redefine software development processes in the AI era.

Responsibilities

  • 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.

Qualifications

  • 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.

Skills

Required:TypeScriptFrontend developmentBackend development
Nice to have:RustAI-assisted development tools

Benefits

  • Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
  • Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
  • 401(k) retirement plan with employer match
  • Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
  • Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
  • 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time
  • Mental health and wellness support
  • Employer-paid basic life and disability coverage
  • Annual learning and development stipend
  • Daily meals in our offices, and meal delivery credits as eligible
  • Relocation support for eligible employees
  • Additional taxable fringe benefits, such as charitable donation matching and wellness stipends
Last updated Oct 8, 2026. Interested? Apply on the company site.

About OpenAI

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