[ engineering ]

Training - Runtime Foundations Engineer

Location: Remote
Work mode: Remote
Type: full time
Listed: Sep 3, 2026

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[ About this role ]

As a Training Runtime: Runtime Foundations Engineer at OpenAI, you will build the distributed OS that orchestrates large-scale training workloads. You will focus on creating robust, scalable, and high-performance asynchronous systems using Codex and Rust, ensuring reliability and efficiency across massive clusters.

Skills and focus areas

distributed systems
asynchronous programming
performance optimization
system reliability
scalability
resilience
debugging
design judgment
problem solving
rust
codex

Summary written by Ramai from the original posting. Full details and requirements are on OpenAI’s careers page.

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