Senior Low Latency Developer

CMC Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence is critical. You'll design and build ultra-low latency pricing and risk systems that directly power our global trading operations. If you thrive in performance-critical environments and want your work to have real market impact, we'd love to hear from you. Ultra-Low Latency Engineering

• Develop and optimise high-performance Java (21+) systems for pricing, risk and trading.

• Build and enhance components within a low latency, high-throughput trading architecture.

• Apply advanced concurrency, memory management and performance tuning techniques. System Design & Ownership

• Take responsibility for designing scalable, resilient and maintainable systems.

• Contribute to architectural decisions across the trading and risk platform.

• Build tooling to improve monitoring, maintenance and performance diagnostics. Trading-Focused Collaboration

• Work closely with Quants, Financial Engineering, Front Office and Business Operations.

• Support live trading systems, troubleshooting time-critical production issues.

• Contribute to the continuous evolution of our electronic trading infrastructure. Mentorship & Technical Leadership

• Provide guidance and mentorship to junior developers.

• Champion engineering best practices, clean code principles and robust design patterns.

• Strong hands-on Java development experience within low latency financial systems.
• Deep understanding of performance optimisation, concurrency and JVM internals.
• Experience working on pricing, risk or electronic trading platforms.
• Knowledge of FIX protocol, order routing and broker connectivity highly beneficial.
• Strong mathematical and problem-solving mindset.
• Experience across asset classes such as FX, Equities, Commodities or Derivatives preferred.
• Ability to operate calmly in a fast-paced, front-office trading environment.
• Experience mentoring engineers and influencing technical direction.
• Minimum 2:1 degree in Computer Science, Mathematics, Physics or another numerate discipline.