C++ Market Data Developer (Contract) needed in London, England, United Kingdom

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C++ Market Data Developer (Contract)

Company: WORKHUB AGENCY

Job Location: London, England, United Kingdom

Job Type: CONTRACT - (HYBRID)

Job Salary: 0 USD per month.

Date Posted: April 17, 2025

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Job Description

ABOUT BMLL:We are a historical data and analytics company, solving some of the most complex and challenging problems in big data and financial markets. We have built an award-winning data analytics platform for processing vast quantities of granular limit order book data and are in the process of productising this platform.We have a fantastic team and our culture is inclusive and highly collaborative, a place where our employees are encouraged to be themselves.We offer a combination of remote and office (London-based) working, weekly team lunches and plenty of office snacks!About the Role:At BMLL we process historical market data in a process we call parsing. This process is equivalent to the feed handlers used in real-time market data processing. We curate the data to ensure the highest quality of delivery to our customers. Every day we consume 250GB of new data across 750,000 securities to deliver into our platform, our dashboard products and data services. These are accessed by our customers who are dependent on our services for their own workflows.The role we are hiring for is to take care of a number of exchange protocol changes that affect the parsers/feed handlers that we run in production, to support the team with bug fixes to existing parsers, and continue a process of migrating those parsers/feed handlers from Python to C++. When we do this, we maintain the integrity of the data by rigorously comparing the Python output with the C++ output with both unit tests and by running tools to compare entire days of output. The Python parser and the data will be provided. We have already converted a number of parsers, and there is a pattern to follow.ResponsibilitiesHandling exchange protocol upgradesFixing bugs in existing C++ parsers as they ariseMigration of Python data parsers into C++ to improve performance, precisely maintaining existing functionalityDevelopment of Google Test unit tests for the new C++ code, in existing frameworkComparison of the C++ / Python output using existing tools ESSENTIAL:Experience of working with market data protocols such as ITCH, EOBI, iMpact, Optiq, GTP (Group Ticker Plant).Industry experience of writing production-level C++ and delivering functioning, well-tested systems.Industry experience of developing in PythonIndustry experience of developing on a Linux platform with gitExperience of industry-standard development methodologies such as source code control, unit testing and continuous integrationStrong problem solving skillsStrong communication skillsComputer science or other STEM degree Combination of remote and London based office workingCollaborative cultureWeekly team lunchesFree fruit, snacks and drinks provided throughout the day (when office based)Fridge fully stocked with beer, wine and soft drinks (when office based)Regular Team SocialsWe are an inclusive employer and welcome applicants from all backgrounds. We pride ourselves on our commitment to Equality and Diversity and are committed to removing barriers throughout our hiring process - if you have any special requirements or require reasonable adjustments to help you access career opportunities at BMLL, please do let us know careers@bmlltech.com

About WORKHUB AGENCY

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