Job Description

My client, a global leader in financial technology and capital markets infrastructure, is hiring a Senior C++ Developer to join an established engineering team based in Belfast. This is a key position within a high-performing team focused on building next-generation, ultra-low latency trading and execution systems across traditional and digital asset markets.

• Competitive salary (dependent on experience)
• Hybrid working (3 days in office)
• Flexible working arrangements
• Bonus / share incentive scheme
• Clear career progression opportunities

You will be part of a highly skilled engineering team developing cutting-edge, high-performance systems that underpin modern financial markets. The organisation is passionate about innovation, leveraging advanced C++ and distributed technologies to build scalable, low-latency platforms.
As a Senior C++ Developer, you will design, develop, and maintain complex, performance-critical systems. You will work across the full development lifecycle, contributing to architecture, implementation, and production support. You will also play a key role in mentoring team members and driving best practices across the engineering function.

The Role

• Design, develop, and maintain high-performance C++ systems
• Contribute to architecture and technical design of complex platforms
• Deliver robust, scalable, and low-latency solutions
• Support production systems and troubleshoot critical issues
• Work within agile teams to deliver high-quality software
• Mentor junior engineers and support team development
• Contribute to continuous improvement of tools, processes, and systems
• Collaborate with senior engineers and architects on strategic direction

The Person

• Strong experience in modern C++ (C++11 or later)
• Proven experience delivering features within complex systems
• Solid understanding of the full software development lifecycle
• Experience working in agile development environments
• Knowledge of Python in a professional setting
• Strong problem-solving skills and attention to detail
• Experience working on performance-critical or low-latency systems

Desirable Experience

• Experience with C++20 or later
• Familiarity with Boost libraries
• Experience with Linux or Windows environments
• Version control experience (e.g. Git)
• Experience with CI/CD pipelines and tools (e.g. Docker, Ansible)
• Cloud experience (e.g. AWS, GCP)
• Containerisation and orchestration (e.g. Kubernetes)
• Exposure to financial markets or trading systems
• Knowledge of blockchain / distributed ledger technologies
• Experience mentoring or leading other engineers
• Contribution to open-source projects

For further information on this role, or other Software Engineering opportunities in Belfast or across Northern Ireland, please apply via the link or contact us for a confidential discussion.