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Jobs in England, United Kingdom
24 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
21–24 of 24 jobs
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Reflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffData & AIData is playing an increasingly crucial role at the frontier of AI innovation. Many of the most meaningful advances in recent years have come not from new architectures, but from better data.
Member of Technical Staff - Evaluations
10 months agoReflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffScience & researchConduct critical comparative analysis to advance our understanding of model capabilities; Build and refine evaluation systems and processes that create tight feedback loops between data, evals, and model behavior; Develop generalizable evaluation frameworks that capture what…
Member of Technical Staff - Pre-Training
13 months agoReflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffScience & researchResearch and build solutions across algorithms, scaling laws, data processing, optimizers, and model architecture.; Design and run scientific experiments to advance our understanding of scaling large language models and data efficiency.; Implement state-of-the-art methods from…
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13 months agoReflection · San Francisco, California, United States +2
On-siteFull-timeReflection AI is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, ancestry, age, marital status, disability, genetic information, veteran…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.