Principal Software Engineer, Full Stack — Codex

4 days agoHeadSalary: 459K - 536KSan Francisco, USA Fullstack Jobs by OpenAI

OpenAI

AI research and deployment company building and deploying frontier AI products, including ChatGPT, Codex, and its API platform.

49 current maintainers29 active leads5 new active leads117 lead step-downs16 early lead departures

San Francisco, United States

Funding history

Funding roundExpanded revolving credit facilityNew investment ($110B)

Investors

Sam Altman Wells Fargo Nvidia Citi Reid Hoffman

Projects

RoiTrading Terminal

About OpenAI

OpenAI’s mission is to ensure artificial general intelligence benefits all of humanity. It consists of the nonprofit OpenAI Foundation and OpenAI Group, a public benefit corporation governed by the Foundation.

View jobs by OpenAI

Skills

Ai Agents Architecture Backend Cloud Infrastructure Developer Tooling Distributed Systems Evaluation Full-Stack Observability Prompt Design Workflow Orchestration

Candidate Availability

San Francisco · Required

About the Role

You will set technical direction and lead major product initiatives spanning user interfaces, developer tooling, workflow orchestration, agent and prompt design, backend systems and cloud infrastructure. You will remain deeply involved in design and implementation while mentoring engineers and partnering across product, design, research, infrastructure, security and go-to-market teams.

Requirements

Led design and delivery of technically complex user-facing systems
Deep software-engineering expertise and strong product judgment across interfaces, distributed systems, infrastructure and developer tooling
Track record of setting technical direction in ambiguous problem spaces
Experience building or operating AI-powered products
Clear communication across engineering, product, design, research and executive audiences

Responsibilities

Set technical and product direction for significant areas of Codex
Lead multi-quarter initiatives across client apps, backend services, agent systems, cloud infrastructure and developer tooling
Design AI-powered workflows that generalize across languages, codebases and environments
Make high-consequence architectural decisions under ambiguity
Align stakeholders and drive work from exploration through launch
Partner with product, design, research, infrastructure, security and GTM teams
Work directly with developers, open-source maintainers, startups and enterprises to uncover needs
Establish standards for reliability, observability, performance, experimentation and evaluation
Review designs and mentor engineers
Contribute directly to implementation

Benefits

Equity
Medical, dental, and vision insurance with employer HSA contributions
Pre-tax Health FSA, Dependent Care FSA, and commuter accounts
401(k) with employer match
Paid parental leave, medical and caregiver leave
Flexible PTO
13+ paid company holidays and company office closures
Mental health and wellness support
Employer-paid basic life and disability coverage
Annual learning and development stipend
Daily meals in offices and meal delivery credits
Relocation support
Charitable donation matching and wellness stipends
Performance-related bonus