Remote-Eligible Research Engineer, AI Systems

Company: Lightningai
Apply for the Remote-Eligible Research Engineer, AI Systems
Location: London
Job Description:

Lightning AI is hiring a Research Engineer to advance post-training AI systems across the ML stack. You will build, evaluate, and scale training workloads, and contribute to open-source projects while collaborating with research, product, and infrastructure teams.

The role blends ML engineering, software development, and platform work in a fast-moving startup environment, with hybrid work and in-office days at hub locations including London.

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Posted: October 4th, 2026