About the job

An exciting opportunity to join an international algorithmic market maker in digital assets that combines high-frequency trading with crypto markets, trading over $5B per day across dozens of global trading platforms. As a Python Core Developer in the Middle Office, you will work on a greenfield automated trade reconciliation system capable of processing up to 100 million transactions per day, collaborating closely with senior leadership including the CTO in a highly meritocratic and delivery-focused environment. The role is based in a Linux-driven infrastructure, requires strong Python and SQL skills, and involves building systems that integrate closely with a high-performance C++ trading stack. The company blends the expertise of traditional financial markets with the fast-paced culture of a fintech start-up, offering a competitive £200–250k salary, smart central London office, greenfield development work, and UK Tier-2 (Skilled Worker) visa sponsorship for eligible international candidates.