Senior Staff Backend Software Engineer, Codex for Finance
OpenAI · San Francisco, CA · Applied AI
About this role
OpenAI is hiring a senior-level Backend Engineer in the software engineering function based in San Francisco, CA. The posting calls out experience with Python, TypeScript, Rust, Distributed Systems. Compensation is listed at $230,000–$385,000 per year.
- Role
- Backend Engineer
- Function
- software engineering
- Level
- senior
- Track
- Tech leadership
- Employment
- Full-time
- Location
- San Francisco, CA
- Department
- Applied AI
- Posted
- May 15, 2026
More roles at OpenAI
Job description
from OpenAI careersAbout the Team
Codex for Finance is a specialized team within OpenAI’s B2B Applications organization. B2B Applications builds and operates the products that bring our cutting-edge research to millions of companies and developers worldwide. We power the OpenAI API and the Enterprise products that empower people around the world to do their jobs better and more efficiently. Our teams span product engineering, backend infrastructure, and safety, working together to ensure that OpenAI’s technology is delivered with reliability, security, and a world-class user experience.
About the Role
We’re looking for backend engineers to help design and scale the systems that will drive the future of AI in finance. We’re a small, specialized team operating like a startup within OpenAI, and we’re looking for like-minded builders to join us. On March 5, we launched ChatGPT for Excel — just the first step in what we’re building in this space.
In this role, you will:
Own the end-to-end development lifecycle for new new platform capabilities and integrations with other systems
Collaborate closely with product, design and external customers to understand problems and implement effective solutions
Work with the research team to improve our next generation of models
Your background might look something like: