Senior eFX Algo Developer Location: London (Hybrid - 3 days in office) Role Overview We are seeking a highly skilled Senior Java Developer to join the eFX Algo IT team as a Subject Matter Expert (SME) in low latency trading systems. This is a hands-on development role focused on building and enhancing pricing, hedging, and market connectivity systems for the eFX trading desk. You'll be working in a fast-paced, front-office environment, collaborating closely with developers, business analysts, project managers, and QA teams. This role demands deep technical expertise in Java, particularly in low latency environments, and a strong understanding of FX trading systems. You'll be expected to contribute to all phases of the software development lifecycle, from design and prototyping to deployment and support. Key Responsibilities Design and develop high-performance, low-latency Java applications for pricing, hedging, and market connectivity. Collaborate with Front Office and IT teams to gather requirements and deliver analytics and trading solutions that directly impact P&L. Rapidly prototype solutions in an agile environment with evolving priorities. Participate in sprint planning, estimation, and provide regular updates to project managers. Create and maintain technical documentation including design specs, functional requirements, and unit tests. Provide third-line support and technical assistance to production support teams. Participate in software releases, which may occasionally occur outside regular working hours. Ensure compliance with internal policies and regulatory requirements, including financial crime prevention and mandatory training.Required Skills & Experience Technical Expertise Strong proficiency in Java, including: Multithreading Low latency techniques Garbage collection optimization Performance monitoring and metrics design Solid understanding of Linux/UNIX operating systems Experience with real-time, mission-critical systems Familiarity with networking tools (e.g., Wireshark), Solace, and 10GbE multicast Knowledge of FIX protocol and other market connectivity standardsDomain Knowledge Front-office experience in FX trading or quantitative finance Understanding of pricing algorithms, dynamic spreading, and FX ECNs FX Options knowledge is a plusMethodologies & Collaboration Experience with Agile, Scrum, or Kanban delivery frameworks Strong communication skills with the ability to liaise between IT and trading desks Production stability mindset and ability to work with infrastructure and support teamsQualifications Bachelor's degree (or equivalent) in Computer Science, Mathematics, Physics, or Engineering Postgraduate qualifications in advanced computing or statistical disciplines are desirableCompetencies & Values Ability to quickly learn and apply new technologies Proactive in contributing ideas and innovations to the team Commitment to transparency, accountability, excellence, and client service quality