INTERNSHIP DETAILS
Machine Learning Researcher
CompanyJane Street
LocationHong Kong
Work ModeOn Site
PostedFebruary 5, 2026

Internship Information
Core Responsibilities
You will work closely with experienced ML Researchers on projects relevant to systematic trading strategies. Your tasks may include conducting studies on datasets, trying new modeling paradigms, and analyzing model predictions.
Internship Type
full time
Company Size
3361
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Jane Street is a quantitative trading firm with offices in New York, London, Hong Kong, Singapore, and Amsterdam. We are always recruiting top candidates and we invest heavily in teaching and training. The environment at Jane Street is open, informal, intellectual, and fun. People grow into long careers here because there are always new and interesting problems to solve, systems to build, and theories to test.
More than twenty years after our founding, it still feels like we’re just getting started.
Jane Street does not offer any services to individual investors: https://www.janestreet.com/fraud-and-impersonation-warnings/
About the Role
<h3><strong>About the position</strong></h3>
<p>Our goals are to give you a real sense of what it’s like to work at Jane Street full time as a Machine Learning Researcher, and a truly unparalleled educational experience. You’ll work side by side with experienced ML Researchers on projects that we’ve selected for their combination of novel ML ideas and relevance to real-world systematic trading strategies. You'll learn how we think about markets through challenging classes and activities, and practice using established methods alongside our own unique twists to train practical models. </p>
<p>At Jane Street, the lines between research, technology, and trading are intentionally blurry. As our strategies grow more sophisticated, close collaboration is essential for continuing to push the boundaries of what’s possible. We work with petabytes of data, a computing cluster with hundreds of thousands of cores, and a growing GPU cluster containing 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>You’ll spend the bulk of your internship working closely with full-time machine learning researchers on projects drawn from their own work. You might conduct an end-to-end study of an unexplored dataset, try a new modeling paradigm for a thorny problem, or consider blue-sky approaches that we’re still trying to figure out. The problems we work on rarely have clean, definitive answers, and they often require insights from colleagues across the firm with different areas of expertise. Depending on the day, you might be diving deep into market data, tuning hyperparameters, debugging training issues, or analyzing the predictions your model makes.</p>
<p>Note that given the IP-sensitive nature of machine learning research at Jane Street, it is unlikely that any research findings associated with the internship will be suitable for outside academic publication.</p>
<h3><strong>About you</strong></h3>
<p>If you’ve never thought about a career in finance, you’re in good company. Many of us were in the same position before working here. If you have a curious mind and a passion for solving interesting problems, we have a feeling you’ll fit right in. You should be:</p>
<ul>
<li>A PhD student or postdoc working on empirical ML research problems, or someone with equivalent research experience</li>
<li>Interested in applying logical and mathematical thinking to all kinds of problems</li>
<li>Curious about the machine learning landscape and excited to apply state-of-the-art techniques drawn from many problem domains</li>
<li>Fluent with a versatile set of models and tricks </li>
<li>Able to rapidly implement and iterate on your ideas in Python and your favorite ML framework</li>
<li>Eager to ask questions, admit mistakes, and learn new things</li>
<li>Fluent in English</li>
</ul>
<p>If you’d like to learn more, you can read about our <a href="https://www.janestreet.com/join-jane-street/ml-research-interviews">interview process</a> and <a href="https://www.janestreet.com/join-jane-street/get-to-know-us/">meet some of the team</a>. Learn more about Jane Street’s <a href="https://www.janestreet.com/join-jane-street/internships/">internship program </a>here.</p>
Key Skills
Machine LearningPythonEmpirical ResearchModeling ParadigmsData AnalysisHyperparameter TuningDebuggingCollaborationCuriosityMathematical ThinkingState-of-the-Art TechniquesImplementationLearningProblem SolvingCommunication
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