Java Consultant
🚨 NEW JOB ALERT 🚨 – Lead Java Contractor
💻 Java / Distributed Systems / Event-Driven Architecture – Trading & Portfolio Tech
🕑 10+ years building high-performance, data-intensive trading systems
📍London (front-office, high-impact engineering environment)
💰 Highly competitive day rate
Highlights:
🔷 Lead the design and build of scalable trading & portfolio management systems for the Credit desk
🔷 Work directly with portfolio managers and traders to deliver real-time, business-critical technology
🔷 Architect event-driven, distributed systems with strong focus on performance, resilience, and observability
🔷 Drive technical direction across microservices, data streaming, and system design in a fast-moving environment
The Role:
Join a high-calibre Investment Engineering team embedded on the trading floor, delivering core infrastructure that underpins complex credit investment strategies. This is a hands-on leadership role combining deep backend engineering with architectural ownership and close collaboration with senior investment stakeholders.
What You’ll Be Doing:
🔹 Own the full development lifecycle – from architecture and design through to production delivery
🔹 Build and scale Java-based systems supporting trading, analytics, and execution workflows
🔹 Design high-throughput, event-driven platforms using modern streaming technologies
🔹 Partner with traders and PMs to translate complex investment processes into robust systems
🔹 Lead best practices across performance optimisation, system reliability, and maintainability
What We’re Looking For:
✔️ Strong Java engineering background with experience in trading or market-facing systems
✔️ Deep understanding of distributed systems, microservices, and data streaming using Aeron
✔️ Proven experience building production-grade, fault-tolerant systems in high-performance environments
✔️ Expertise in event-driven architecture and handling real-time data pipelines
✔️ Ability to influence architecture, mentor engineers, and operate at a senior technical level