Machine Learning Engineer, Pretraining Data Pipelines

Company: Cohere
Apply for the Machine Learning Engineer, Pretraining Data Pipelines
Location: London
Job Description:

Cohere, a leading security-first enterprise AI company, is hiring a Machine Learning Engineer focused on pretraining data. You will build and evaluate data pipelines, conduct data ablations, and craft pre-training data mixtures to boost model performance, throughput, and accelerator utilization.

This role blends research and engineering to advance language models. Remote-friendly with offices in multiple cities; open to candidates globally within EST/EU hours.

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Posted: October 8th, 2026