https://jobs.co.uk/job/market-data-engineer-mcgregor-boyall--e3874ac1-37ba-4e66-b0dd-936f6638fa80 RSS feed for Market Data Engineer at McGregor Boyall. en-gb Wed, 01 Jul 2026 14:50:17 GMT https://jobs.co.uk/job/market-data-engineer-mcgregor-boyall--e3874ac1-37ba-4e66-b0dd-936f6638fa80 https://jobs.co.uk/job/market-data-engineer-mcgregor-boyall--e3874ac1-37ba-4e66-b0dd-936f6638fa80 Wed, 01 Jul 2026 11:52:15 GMT Location: London | Salary: 120000.00-120000.00 Annual | Type: Permanent | McGregor Boyall are working with one of the world''s largest proprietary trading firms: a market maker active across 70+ exchanges globally. They''re hiring a Software Engineer to own the reference data layer that sits beneath every trading decision the firm makes.You''d be setting technical direction for a platform spanning financial instruments, corporate actions, market calendars, and alternative datasets: working across asset classes, in a low-latency environment where data correctness isn''t just good practice, it''s PandL-critical. The stack leans on C++ and Python, and the challenge is building pipelines robust enough to handle the complexity of real-world upstream sources without compromising the quality that high-frequency strategies demand.The team sits at the intersection of engineering, trading, and research.Offering guaranteed bonus and sign-on, hybrid working from London (candidates need to be in-office 3 days per week).Required skills:- Expertise in either Python or C++ (both is great)- Proven experience designing and building reference data or security master systems from scratch. We''re not looking for people who have only consumed or maintained these systems- Good... Permanent