Market Data Specialist, Metadata
JanestreetLondon, England, United KingdomPosted 12 March 2026
Tech Stack
Job Description
About the Position
We’re looking for a Market Data Specialist to join our Metadata team, working on improving and supporting our internal golden copy Security Master and Corporate Action Management systems. You’ll be responsible for configuring our systems to improve data quality, helping with data cleaning and validation, solving support issues for internal clients, and interfacing with our data providers.
You’ll be embedded into the Metadata Systems Engineering team and will work with software developers, traders, and operations professionals across the firm.
Responsibilities include:
Investigating data quality and reliability issues
Interfacing with exchanges or data vendors, raising, tracking, and resolving issues
Helping us (the Metadata team and internal clients) understand our data better
Potentially advising on solutions, e.g., changing monitoring
Configuring internal services/tools and adding overrides
About You
Strong debugging and troubleshooting skills
Excellent written and interpersonal communication skills
Experience with financial instrument metadata, especially reference data preferred
Programming experience in any language and knowledge of SQL or other database language(s)
Confident in a Linux/Unix command-line-driven environment
Responsible, organised, and great attention to detail
Operations, support, and customer-centric experience a plus
Fluency in English required
If you're a recruiting agency and want to partner with us, please reach out to
agency-partnerships@janestreet.com .
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