Job Specifications
About BMLL
We are the leading independent provider of harmonised Level 3 historical data and analytics to the world's most sophisticated capital market participants. BMLL offers banks, brokers, asset managers, hedge funds and global exchange groups immediate and flexible access to the most granular Level 3, T+1 order book data and advanced analytics, enabling them to accelerate research, optimise trading strategies and generate alpha at unparalleled speed and scale.
Our culture is inclusive and highly collaborative, with a flat management structure that empowers our employees to get involved in decision making as we continue to grow and scale.
We offer a combination of remote and office (London based) working, weekly team lunches and plenty of office snacks!
For more information, please visit our website, www.bmlltech.com or visit our X, @bmlltech or LinkedIn, @BMLL.
About the Role:
At BMLL, we process financial data in a process we call parsing. We continually add new financial datasets to our platform whilst upgrading and improving existing ones. Parsing occurs in well-defined data pipelines built using a distributed architecture. The engineering of the pipeline is as important as the data transformation process, and we are constantly working to improve its performance and reliability. We curate the data to ensure the highest quality of delivery to our customers. Every day, we consume 600GB 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.
We are looking for a strong C++ Developer to join a small team who engineers the market and analytics data products. As part of our technology strategy, you will design and develop the next generation of our analytics data products, This is a crucial part of our roadmap. You will also improve the process and reliability of managing these large datasets using the latest AWS technologies and become an expert in understanding the data and the way we curate and process it.
This is an opportunity to join a cutting-edge FinTech company with the potential to grow your technical, finance and cloud & data engineering skills.
Responsibilities:
Owning the full scope of assigned development projects for market data and analytics data products, including liaising with the business to gather requirements, designing the solution with the team, and building and delivering completed functionality to production
Delivering new data products using C++
Migration of Python data products into C++ to drastically improve performance
Helping to drive improvements in all areas, including the parsing framework, data quality, testing and CI
Understanding the data, how it reaches BMLL, how we process it and deliver it to customers
Communicating with technical teams both within BMLL and sometimes at data providers such as financial exchanges
Some second-line support of the data product processes and the data, shared amongst the team
Requirements
Essential:
Experience working with financial data or other large datasets
Industry experience in writing production-level Modern C++ (C++20 or later) and delivering functioning, well-tested systems
Industry experience with Python
Industry experience in developing on a Linux platform
Industry experience in delivering production-grade systems using modern development practices — including source control, unit testing, and CI/CD pipelines for automated build, test, and deployment
Experience with agile development practices
Ability to self-organise and deliver a project over a period of up to a few months
Strong problem-solving skills
Strong communication skills
Computer science or other STEM degree
Desirable:
Snowflake
AWS
NumPy, Pandas, Polars
Airflow
Parquet
Benefits
Competitive salary
25 days holiday plus bank holidays
Discretionary Bonus
Pension Scheme
Private Medical Insurance
Work remotely abroad for up to 40 business days each year
Life Insurance
Combination of remote and London based office working, with 2 days in the office per week
A yearly Well being Physical Activity budget
Continuous learning through funded training and challenging projects
Collaborative culture
Weekly team lunches
Free Fruit, snacks, and drinks provided throughout the day (When office based)
Regular Team Socials
Cycle to Work Scheme
We are an inclusive employer and welcome applicants from all backgrounds. We pride ourselves on our commitment to Equality and Diversity. We 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 the Company
BMLL Technologies is the leading independent provider of harmonised Level 3, 2, and 1 historical data and analytics across global equities, ETFs, futures, and US equity options.
We provide banks, brokers, asset managers, hedge funds, exchanges, academics, and regulators fast, flexible access to granular T+1 order book data and advanced analytics - helping them understand market behaviour, accelerate research, optimise strategies, and generate alpha.
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