Senior Software Engineer - Greenfield Fintech (Hybrid)

numi in London, UK is seeking a Senior Software Engineer to own core product capabilities and infrastructure from scratch in a high-autonomy, greenfield environment. You will drive architecture, set coding standards, and mentor peers, building distributed payment systems at scale.

The role emphasizes strong CS fundamentals, experience with typed languages, and collaboration with product and engineering leads to shape the technical roadmap. Hybrid work model in London.