Machine Learning Researcher
Janestreet Is this your company? Claim it · London · Full-time
Description
<h3>About the Position</h3> <p>We’re looking for smart and curious individuals to join our growing team and drive our ML work.</p> <p>On our <a href="https://www.janestreet.com/join-jane-street/machine-learning/">Machine Learning</a> team, you'll build the deep learning models that power our trading strategies, supported by our rapidly growing computing cluster with tens of thousands of high-end GPUs. Trading poses unusual challenges— large models and nonstationary datasets in a competitive multi-agent environment—that force us to search for novel techniques. </p> <p>At Jane Street, our researchers, engineers and traders sit a few feet away from each other and work together to train models, architect systems and run trading strategies. Depending on the day, we might be diving deep into market data, tuning hyperparameters, debugging distributed training performance or studying how our model likes to trade in production.</p> <p>We’ll rely on your in-depth knowledge of the machine learning landscape and understanding of a variety of approaches—drawn from LLMs, image models, RL agents, recommendation systems or classical ML methods—to shape the future of ML at Jane Street. You’ll…
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The listing places this job in London.
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It was posted on 11 November 2026. Jobs that stay open too long are closed automatically, so apply soon if you are interested.
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