AI Researcher, LLMs is open at Hudson River Trading in London, United Kingdom; New York, NY, United States. The posting gives no salary; similar roles in the United States advertise a median of $172K. Posted on Aug 28, 2026, and still on Hudson River Trading’s careers page when we last checked, on Nov 14, 2026.
About the role
, you'll work on every stage of the model development loop: tokenizer training, dataset curation and mixing, pretraining, post-training, evaluation design, inference, and live trading. HAIL researchers have great independence to pursue the directions they think would be most impactful as part of a small, focused team with minimal bureaucracy. They are enabled by state-of-the-art research clusters with very high…
The opening lines of the posting. The rest is on Hudson River Trading’s careers page.
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