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Research Engineer - Language Model Pre-Training

San Francisco💼 Full-time🗓 2026-03-17 → 2026-09-26

Core

End-to-end development of language model pretraining, including large-scale training runs, performance optimization, and dataset processing.

Role type

Research Engineer - Language Model Pre-Training

Builds

Next-generation language models

Domain

Artificial Intelligence / Large Language Models

Deliverable

production ML models

Required skills

Machine learning problem solving, multi-node GPU cluster training, model/data parallelism, distributed optimizers, experimental methodology, PyTorch, Python, large-scale data processing pipelines

Preferred skills

Published machine learning research

Technologies

PyTorch, Python

Responsibilities

Implement large-scale training runs and model parallelization, optimize pretraining stack performance, collect and process datasets, conduct architecture and methodology research including optimizer ablations

Seniority

Mid-Senior, hands-on IC

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