Java jobs in United Kingdom

Job Title: Senior eFX Low Latency Java Developer

We are seeking a highly skilled Senior Java Developer to join the eFX Algo IT team as a Subject Matter Expert in low latency trading systems. This is a hands‑on development role focused on building and optimizing pricing, hedging, and market connectivity systems for the eFX trading desk.

Experience in eFX pricing is essential, including price construction and algorithmic trading. You’ll work closely with Java and C# developers, business analysts, project managers, and QA teams to deliver high‑performance solutions. A strong understanding of FX trading, low latency architecture, and compliance within a trading environment is required.

This is a hybrid position, requiring 3 days per week in-office at our location near Liverpool Street Station in London.

• Design and develop low latency pricing and trading systems using Java.
• Collaborate with Front Office and IT teams to prototype and deliver analytics and algorithmic trading solutions.
• Analyse and optimize performance in high‑frequency trading environments.
• Contribute to all phases of the development lifecycle: design, specification, testing, deployment, and support.
• Provide 3rd line technical support and liaise with production support teams.
• Participate in sprint planning, estimation, and regular project updates.
• Support software releases, including occasional out‑of‑hours deployments.
• Ensure compliance with internal policies and regulatory requirements.

• Strong communication and analytical skills.
• Deep expertise in Java, especially in multithreading, low latency, and performance tuning.
• Solid understanding of FIX protocol and market connectivity.
• Proven experience in eFX pricing, including price construction and algo development.
• Experience in front‑office FX or quantitative finance environments.
• Proficient in UNIX/Linux systems.
• Familiarity with Agile, Scrum, or Kanban methodologies.
• Production stability mindset and ability to collaborate across infrastructure and support teams.

• Degree (or equivalent) in Computer Science, Mathematics, Physics, or Engineering.
• Proven experience in:
• Java development (low latency, multithreading, garbage collection‑aware techniques).
• Performance monitoring and metric design.
• Real‑time, mission‑critical systems.
• Linux and message bus technologies.
• Network analysis tools (e.g., Wireshark).
• Solace or similar messaging platforms.
• eFX pricing systems and algorithmic trading frameworks.

• Postgraduate qualification in computing, mathematics, or statistics.
• Experience with FX ECNs, pricing algorithms, FIX engines/APIs.
• Knowledge of FX Options and FIX packages.

• Ability to quickly learn and apply new technologies.
• Strong technical acumen and delivery focus.
• Clear communicator with the ability to engage both technical and business stakeholders.
• Values: transparency, accountability, excellence, and client service quality.