Principal Software Engineer, Full Stack — Codex
OpenAI · San Francisco
Frontier labonsiteprincipal$459k–$536k
At a glance
Highlights
- Define and build next-gen AI-powered software development workflows.
- Shape Codex architecture and how developers design, write, and test software.
- Design AI workflows that generalize across languages, codebases, and orgs.
What they offer
- Equity
Ideal candidate
Hands-on technical leader with exceptional product judgment who thrives in ambiguity and elevates teams. You care deeply about developer workflows and turning AI capabilities into intuitive, reliable products.
Requirements
- Led design and delivery of technically complex, user-facing systems beyond a single team
- Deep software engineering expertise with strong product judgment across interfaces, systems and tooling
- Track record of creating clarity in ambiguous spaces and setting technical direction
- Hands-on while multiplying effectiveness through architecture, mentorship and decision-making
- Deep understanding of modern software development workflows and AI agents
- Experience building or operating AI-powered products with evaluation, reliability and safety challenges
Lab profile
About OpenAI
Builds safe frontier AI models and products like ChatGPT for broad benefit.
What they build
- ChatGPT
- OpenAI API
- Frontier AI models
Known for
- Frontier-scale distributed ML training
- Massive GPU fleet and data center operations
- Exabyte-scale data lakes and streaming
- AI alignment and safety research
Key facts
- Operates one of the world's largest GPU fleets
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