Salary: £40,000 - 70,000 per year Requirements:

Significant professional experience with modern C++ (C++11 or later)
Strong understanding of performance optimisation and low-level system design
Proven track record of delivering features from concept through production
Experience mentoring or supporting fellow engineers
Strong communication and stakeholder management skills
Experience developing and supporting applications in Linux environments
Proactive, ownership-driven mindset
Desirable: C++20, Python development, SQL and relational databases, real-time or low-latency systems, or experience in trading, financial markets, or exchange technology
A degree in Computer Science, Software Engineering, or a related field is desirable

Responsibilities:

Design, develop, and enhance low-latency C++ applications across five equities trading environments
Deliver robust, scalable, production-ready solutions with a focus on quality and performance
Contribute to order handling, matching engines, market data services, and other critical components
Own work from initial design through implementation, testing, and deployment
Collaborate with engineers, product teams, and business stakeholders
Drive technical decisions and deliver complex initiatives
Support and develop less experienced engineers, and act as a technical expert for key systems and services
Contribute to technical discussions, architecture reviews, and engineering best practices
Investigate and resolve complex production issues, help maintain the reliability and availability of trading systems, and participate in an on-call rota when required
Interview and evaluate engineering candidates and help build our technology organisation

Technologies:

Support
LESS
Linux
Python
SQL
C++

More:

We offer the opportunity to join a collaborative engineering team responsible for a major pan-European equities trading venue. Our engineers work with business stakeholders across Europe and technology teams globally to build and operate mission-critical systems that support real-time trading. We encourage ownership and innovation, and offer the opportunity to influence system design, mentor engineers, and work on complex technical challenges. Our benefits include a competitive salary, performance-based bonus opportunity, employee stock purchase plan, pension contributions, private medical insurance including dental cover, a private GP service, life assurance, long-term illness cover, and an Employee Assistance Programme. We also offer enhanced parental and adoption leave, a flexible and supportive working environment, a corporate fitness membership, complimentary office food and refreshments, referral bonuses, volunteering and charitable giving opportunities, paid tuition assistance, and ongoing professional development. The vacancy is managed by Huxley, a trading division of SThree Partnership LLP, acting as an Employment Business.

last updated 44 week of 2026

C++ Exchange Developer

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