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Research Engineer · London

Research Engineer Jobs in London

There are currently 15 open Research Engineer jobs in London across 5 AI startups. 33% of these roles are at Series A–B startups. Every listing links straight to the company's official application page.

15Open roles
5Companies hiring
Sep 9, 2026Last updated
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Funding-stage mix

Series G+ 6 (40%)Series B 3 (20%)Seed 3 (20%)Series A 2 (13%)Series C 1 (7%)
02

Open Research Engineer Roles in London

RoleCompanyStageLocationPosted
Research Engineer, Agentic EDANormalSeries BMultiple locationsSep 9, 2026
Staff / Principal Research Engineer, AI Safety, Technical MitigationsLila SciencesSeries AMultiple locationsSep 2, 2026
Staff Research Engineer, Scientific Computing and ML/Physics InfrastructureLila SciencesSeries AMultiple locationsSep 2, 2026
[Expression of Interest] Research Engineer / Scientist, Alignment - LondonAnthropicSeries G+London, UKAug 28, 2026
Research Engineer, Machine Learning (Reinforcement Learning)AnthropicSeries G+London, UKAug 28, 2026
Research Engineer, Machine Learning (RL Velocity)AnthropicSeries G+London, UKAug 28, 2026
Research Engineer, PretrainingAnthropicSeries G+London, UKAug 28, 2026
Research Engineer, Pretraining Scaling - LondonAnthropicSeries G+London, UKAug 28, 2026
Research Engineer, RL Scaling ScienceAnthropicSeries G+London, UKAug 28, 2026
Research Engineer, Formal MethodsHarmonic AISeries CMultiple locationsAug 24, 2026
Research Engineer, Domain ScalingNormalSeries BMultiple locationsAug 10, 2026
Research Engineer, AlgorithmsNormalSeries BMultiple locationsJul 31, 2026
Research Engineer / Scientist, Post-training & Reinforcement Learning - LondonH CompanySeedHybrid LondonApr 14, 2026
Research Engineer, Model Inference & Serving - LondonH CompanySeedHybrid LondonApr 10, 2026
Research Engineer / Scientist, Post-training - ParisH CompanySeedMultiple locationsNov 12, 2025
03

FAQ

How many Research Engineer jobs are open in London?

There are currently 15 open Research Engineer jobs in London across 5 AI startups on Fast AI Jobs.

What funding stages are hiring Research Engineers in London?

33% of open Research Engineer roles in London are at Series A–B startups, with the rest spread across seed and later-stage companies.

How often is this list updated?

Listings are refreshed daily from official company career pages and deduplicated by posting. Every link points to the original application page.