Principal Software Engineer, Full Stack — Codex
Core
Define and build the next generation of AI-powered software development workflows, including user interfaces, developer tooling, workflow orchestration, agent and prompt design, backend systems, and cloud infrastructure.
Role type
Principal Software Engineer (Full Stack, AI/ML)
Builds
AI-powered developer workflows, client applications, backend services, agent systems, and cloud infrastructure
Domain
Artificial Intelligence, Software Development Tools, Cloud Infrastructure
Deliverable
production ML models
Required skills
Technical leadership, architectural decision-making, product strategy, AI agent design, distributed systems, cloud infrastructure, mentorship, cross-functional collaboration
Preferred skills
Experience with AI-powered products, understanding of nondeterminism and model evaluation, ability to work in ambiguous problem spaces, deep knowledge of modern software development workflows
Technologies
AI agents, prompt design, cloud infrastructure, distributed systems
Responsibilities
Set technical and product direction for significant areas of Codex, lead complex multi-quarter initiatives, design AI-powered workflows, make high-consequence architectural decisions, align stakeholders, partner with product and research teams, work with developers and enterprises, establish patterns for reliability and performance, serve as a technical multiplier, contribute to implementation
Seniority
Principal, hands-on IC with strategic leadership
