We are looking for strong engineers with experience training production machine learning models.
Contribute to open-source projects and evolve Modal's infrastructure to train the next generation of language models.

🎯 Requirements

5+ years of experience writing high-quality, high-performance code.
Experience with torch and high-level training frameworks (HuggingFace, verl, slime)
ML training optimization: reduce data loading bottlenecks, overlap compute, off-policy rollouts
Nice-to-have: familiarity with Linux kernel, file systems, containers
Ability to work in-person, in our NYC or San Francisco office.
Ability to participate in on-call rotation and respond to production incidents.

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