Openai

Principal Software Engineer, Full Stack — Codex

San Francisco. Posted 3 days ago

The role

You will define and build the next generation of AI-powered software development workflows. This role involves setting technical direction and leading product initiatives across user interfaces, backend systems, and cloud infrastructure.

What you will do

  • Set technical and product direction for Codex.
  • Lead complex, multi-quarter initiatives across client applications, backend services, agent systems, and cloud infrastructure.
  • Design AI-powered workflows that generalize across languages and environments.
  • Make architectural decisions under ambiguity.
  • Align stakeholders around technical directions and drive work from exploration to launch.
  • Partner with product, design, research, infrastructure, security, and go-to-market teams.
  • Work with developers, open-source maintainers, startups, and large enterprises to uncover needs.
  • Establish patterns for reliability, observability, performance, experimentation, and evaluation.
  • Mentor engineers and review critical designs.
  • Contribute directly to implementation for novel or technically demanding problems.

Required qualifications

  • Led the design and delivery of technically complex, user-facing systems.
  • Deep software-engineering expertise with product judgment.
  • Ability to move across product interfaces, distributed systems, infrastructure, and developer tooling.
  • Track record of creating clarity in ambiguous problem spaces.
  • Ability to remain hands-on while increasing the effectiveness of other engineers.
  • Deep understanding of modern software-development workflows.
  • Ability to communicate clearly across engineering, product, design, research, and executive audiences.

Nice to have

  • Experience building or operating AI-powered products and understanding challenges like nondeterminism, evaluation, latency, reliability, safety, and evolving model capabilities.

About the company

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity.

Principal Software Engineer, Full Stack — Codex at Openai | JobZoey