Senior Java Developer | Hedge Fund | London

Java Developer – 12-Month FTC | Greenfield Build | London We’re partnering with a leading systematic family office on an exciting opportunity for a Senior Java Developer to join their Middle Office Engineering team. The team is embarking on a greenfield digital transformation programme, rebuilding key trading and operational systems from the ground up. Location: Central London (4 days per week in office – non-negotiable) Engagement: 12-month Fixed-Term Contract, rolling based on start date Salary : Up to £130k base + potential completion bonus ️ Start date : ASAP preferred – 1 month notice acceptable The Role You’ll work as a hands-on contributor in a team of high-performing engineers, taking full ownership of technical delivery. The current focus is an internal project, a large-scale initiative replacing legacy internal platforms with a more modern, performant, and scalable system. Expect to build across trading support systems, infrastructure, and execution tools, with strong autonomy and end-to-end ownership. What They’re Looking For Strong Java experience (Java 17 preferred) Kafka – Power User level only (critical requirement) Microservices experience is a nice-to-have Background & Experience Deep, production-grade Kafka experience is non-negotiable 6–8+ years of commercial Java development Financial services experience is a plus (swaps, pricing, middle/back office etc.) but not essential You’ll need to be a mature, delivery-oriented IC, capable of working with little oversight Important Notes This is an on-site role (4 days/week) – no remote/hybrid flex beyond the agreed schedule Please only apply if you\’re 100% comfortable with that – prior candidates have been withdrawn for changing their minds post-interview The team is looking for engineers, not managers – strong individual contributors only Interview Process 30–45 min technical screen with engineering leads On-site technical deep dive (~2–2.5 hours) with the wider team Feedback and offer turnaround expected within days If you’re a seasoned Java developer with serious Kafka experience and want to work on a genuinely interesting greenfield project at a high-performance trading firm, apply here or get in touch directly.