Jane Street · 1 day ago
Senior Data Engineer: OCaml Experience
Jane Street Group, LLC is a proprietary trading company seeking a Senior Data Engineer. The role involves developing data processing software systems and automated data pipelines, supporting traders and users in utilizing the firm's data infrastructure, and training junior staff.
FinanceFinancial ServicesTrading Platform
Responsibilities
Develop data processing software systems, including data pipelines, as part of the trading and operational infrastructure for a proprietary trading company
Use Python, SQL, and OCaml programming languages to implement automated data pipelines to extract and transform datasets for business use
Write, understand, and optimize SQL database queries in order to enable efficient data retrieval and storage
Analyze and respond in real-time to problems arising from the firm’s data infrastructure
Support traders and other users in their use of the firm's data and data systems
Work in all parts of the data-processing software lifecycle, including gathering requirements, design, documentation, management of code review, creation of testing plans, and QA of data
Use a mix of financial identifiers to perform entity resolution of securities, other instruments, and companies
Train junior staff in all of the above
Perform review of junior staff's code
Qualification
Required
3 or 4 year Bachelor's degree in Data Science/Engineering, Computer Science/Engineering, Information Technology, Mathematics, Statistics or a related quantitative field or foreign equivalent
3 years of progressively responsible experience as a Data Engineer or similar role
1 year of professional experience using the OCaml programming language for data processing
1 year of experience managing the release and QA of changes to data pipelines in a production environment
1 year of experience orchestrating data pipelines
1 year of professional experience using dbt (“data build tool”) to clean and standardize data, combine data from multiple sources, reshape data, create new calculated fields, and write data tests in preparation for financial analysis and reporting
1 year of experience writing queries and optimizing query performance for the Trino SQL query engine
1 year of experience running software systems in a multi-computer Linux environment, including debugging production issues
1 year of professional experience working on entity resolution of financial data
Company
Jane Street
Jane Street is a quantitative trading firm with offices in New York, London, Hong Kong, Singapore, and Amsterdam.
H1B Sponsorship
Jane Street has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (33)
2024 (23)
2023 (32)
2022 (27)
2021 (20)
2020 (22)
Funding
Current Stage
Late StageRecent News
Crunchbase News
2025-12-17
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2025-12-09
2025-12-09
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