Senior Software Engineer – Systematic Trading Technology

A leading global trading and technology firm is looking for a Senior Software Engineer to join a high-performing engineering team responsible for building the systems that power electronic trading and quantitative strategies. This role focuses on designing and developing highly performant backend applications that sit close to the trading process and directly impact live decision-making.

What you'll be doing

Design, build and optimise high-performance backend systems and trading infrastructure
Develop applications that process large volumes of real-time market and trading data
Partner closely with traders and quantitative researchers to implement new models and trading capabilities
Own projects end-to-end, from requirements gathering through to production deployment
Contribute to architecture decisions and performance improvements across a complex trading ecosystem
Work alongside infrastructure and engineering teams to build scalable, resilient systems supporting global trading operations

Why this opportunity stands out

Direct impact on live trading and investment outcomes
Highly collaborative environment with engineers, quants and traders working side-by-side
Significant ownership and autonomy from day one
Opportunity to work on complex, performance-critical systems where engineering excellence is highly valued
Open to candidates from outside financial services who are exceptional problem solvers and enjoy working on technically challenging systems.

What we're looking for

Strong commercial experience building high-performance backend systems
Exceptional programming skills in any modern language including but not limited to C++, Java, C#, Rust, Go or Python
Deep understanding of:
Object-oriented design and software architecture
Concurrency and multithreading
Performance optimisation and profiling
Distributed systems and scalable infrastructure
Experience building low-latency, real-time or mission-critical applications
Strong communication skills and an ability to work closely with both technical and business stakeholders
Exposure to Linux environments and systems-level engineering is advantageous
Degree in Computer Science, Engineering, Mathematics or another highly quantitative discipline
Experience within trading, market making or order routing systems is beneficial, though not essential for exceptional engineers coming from other high-performance environments.

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