Java Consultant

Job description

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

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full-time jobs

Published at

23-04-2026

Profession type

ICT

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English