Senior Software Engineer - OTCTECH

Flow Traders is transforming its institutional trading platform across Equities, ETFs, Fixed Income, and Crypto. As part of OTCTECH, you will work directly with traders, quants, Operations, Risk, and Compliance to design and deliver a new OTC Trading Engine, automate operational workflows, and modernise existing applications into reliable, maintainable systems.

We are looking for a Senior Software Engineer who can take ownership of complex problems from discovery through production. You will need to understand how trading activities and data flow across systems, define clear technical boundaries, make sound architectural decisions, and build solutions that perform reliably in a demanding environment.

This role combines greenfield platform development with the opportunity to understand and evolve an established technology estate. It is grounded in strong engineering fundamentals, with quality, correctness, operational resilience, and clear technical judgment at its foundation. What you will do Understand the Trading Domain • Work directly with traders, quants, Operations, Risk, and Compliance to understand requirements and how trading workflows operate in practice. • Trace business processes and data flows across pre-trade research, execution, post-trade processing, risk, and compliance. • Identify opportunities to improve resilience, consistency, automation, and operational efficiency.