About the role
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
To be considered for an interview, please make sure your application is full in line with the job specs as found below.
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 xwzovoh 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
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