Java Developer - Front Office / Trading Systems

development, testing and release Produce clean, maintainable and well-tested code Participate in sprint planning, estimations and technical reviews Collaborate closely with developers, quant and infrastructure teams Production & Support Provide 3rd line support on production systems when required Participate in production releases (including occasional out-of-hours interventions) Contribute to system stability, monitoring and incident prevention Technical Environment Core Technologies Java (expert level) Multithreading & concurrency Performance optimisation & low latency techniques Garbage Collection awareness Linux / UNIX environments Distributed systems and messaging architectures Performance monitoring and profiling tools Valued Technical Exposure Event-driven or real-time systems Messaging middleware (Kafka, Solace or equivalent) FIX or other market connectivity protocols Networking fundamentals (TCP/IP, multicast) Required Experience & Skills Essential Strong experience as a Java Developer in performance-critical environments Proven background in low-latency or high-throughput systems Solid understanding of concurrency, threading and memory management Experience working in Front Office, Trading or Risk IT environments Comfortable working in Linux production environments Clear communication and structured problem-solving skills Valued (but not restrictive) Exposure to one or more asset classes (Equities, Fixed Income, Commodities, FX, Derivatives) Experience in trading, pricing, risk or market data systems Why Join MARGO Access to multi-asset Front Office environments Highly technical and challenging engineering assignments Strong emphasis on skill development and long-term career progression Human-sized consultancy with close support and high-quality missions Please note - We do not offer visa sponsorship for this position. Interested? Motivated? Apply on our website or at ##### #J-18808-Ljbffr

Java Developer - Front Office / Trading Systems Join MARGO in the UK (London) - Perm & Contracting Opportunity* MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where performance, robustness and scalability are critical: low latency systems, real-time data processing, distributed architectures and high-volume flows. Joining MARGO means working in demanding Front Office and Risk IT environments, while benefiting from a human-sized structure, close follow-up and tailor-made training paths. Business Context You will join the Front Office / Trading IT environment of one of our tier-1 investment banking partners. The teams design and maintain mission-critical Java systems supporting electronic trading activities across multiple asset classes (e.g. Equities, Fixed Income, Commodities, FX, Derivatives). Real-time and event-driven architectures High performance and