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Full-time
bachelor degree
Continuous learning, Technical excellence focus, Career progression opportunities
Posted 11h ago
~40 hrs/week
Responsibilities
Develop and optimize high-performance Java systems for pricing, risk, and electronic trading platforms. Collaborate with quantitative teams to maintain and evolve the firm's ultra-low latency trading infrastructure.
Requirements
Requires strong hands-on Java development experience within low latency financial systems and a deep understanding of JVM internals. Candidates must hold a minimum 2:1 degree in a numerate discipline and possess the ability to work in a fast-paced trading environment.
Full job description
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.
Please note that this is an onsite role that will require you to work within our London office (near Liverpool street) 5 days on site per week.
The Role
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.
What You’ll Bring
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.
Why Join CMC Markets?
Direct impact on global trading and risk systems.
Close proximity to the trading floor and real-time market operations.
High-visibility role within a performance-driven engineering culture.
Strong focus on continuous learning and technical excellence.
Clear progression opportunities into senior technical and leadership roles.
CMC Markets is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of gender, sexual orientation, marital or civil partner status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age.
Founded in 1989 to make financial markets truly accessible, CMC Markets has evolved into a global leader in online trading, while staying true to its original ethos. With over 36 years’ experience and offices in London, Sydney, Singapore, Toronto, Dubai and across Europe, the company has grown into a trusted name in financial services.
CMC operates a broad portfolio of brands – CMC Markets, CMC Invest, CMC Connect, CMC CapX and OPTO – and holds a 51% stake in blockchain technology firm StrikeX.
Today, more than 2 million* traders and investors worldwide trust CMC Markets. The company also partners with major organisations including Revolut, ANZ Bank and St George, further strengthening its position as a leading innovator in financial technology.
CMC Markets plc is a FTSE 250 listed company and holds long-term issuer default ratings (IDRs) of ‘BBB-’ with a stable outlook.
*Based on over 2 million unique user logins across CMC's trading and investing platforms, including partners, as at November 2025.
Offices: 133 Houndsditch, London, EC3A 7BX, GB · 100 Adelaide St W, Toronto, Ontario M5H, CA · International Towers, 300 Barangaroo Ave, 2000, Lever 20, Tower 3, Sydney, New South Wales 2000, AU · Millennium Tower Wehlistrasse 66/5 1200, Vienna, Brigittenau 1200, AT · 32, Rue de Monceau, Paris, Ile-de-France 75008, FR
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