Java Developer – FX Trading Technology

City of London, United Kingdom | Posted on 11/06/2026

Contract Location: London. Hybrid

Contract Duration: 6 months initially (with potential extension)

Contract Start Date: Immediate

Contract Classification: Inside IR35

Overview

A leading global financial services organisation is seeking a highly technical Java Developer to join a front‑office technology team supporting FX trading platforms. The successful candidate will work closely with trading desks, quantitative teams and technology stakeholders to develop and enhance low‑latency, high‑performance trading systems within a complex capital markets environment.

Responsibilities

• Design, develop and support high‑performance server‑side Java applications within FX trading environments.
• Work closely with traders, quants and technology leadership to deliver business‑critical solutions.
• Develop and maintain pricing, analytics and algorithmic trading capabilities.
• Contribute across the full software development lifecycle, from requirements through to production deployment and support.
• Support and enhance production systems, including 3rd line support activities.
• Drive improvements in performance, scalability, resilience and automation.
• Collaborate within Agile development teams and contribute to best engineering practices.

Qualifications

• Must have Java server‑side development experience.
• Strong understanding of algorithms, data structures, design patterns and multi‑threaded programming.
• Experience across the full technology stack including Java, Linux and networking.
• Experience with KDB/Q.
• Previous experience within pricing, electronic trading or algorithmic trading environments.
• Strong SDLC experience including Git, Jenkins, Ansible and CI/CD tooling.
• Experience supporting production trading applications.
• Excellent communication and stakeholder management skills.
• Proven ability to work effectively within high‑performing technical teams.
• Advanced degree in Computer Science, Engineering, Mathematics, Physics or a related analytical discipline.

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