Senior C++ Software Engineer

JR United Kingdom; Leicester; On-site; GBP 70,000 - 90,000; Full time

Job summary

A global FinTech leader is seeking a Senior C++ Software Engineer to enhance its UK engineering presence. This role emphasizes designing and developing secure, high-performance backend systems that facilitate real-time global payments. Ideal candidates will have strong C++ skills and experience in performance optimization within a collaborative environment focused on engineering best practices.

Benefits

Market based salary + bonus

Excellent benefits package

Qualifications

• Strong experience in modern C++ (C++11/14/17/20) in a production environment.
• Deep understanding of performance-optimized, multi-threaded systems.
• Exposure to embedded systems or low-level systems development.

Responsibilities

• Design and develop core backend components in modern C++.
• Collaborate with a high-calibre team for performance, scalability, and reliability.
• Work on systems enabling real-time global payments.

Skills

C++

Performance Optimization

Multi-threaded Systems

Design Patterns

Problem Solving

Job description

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Market based salary + bonus & excellent benefits package

IT Search is proud to partner with a global FinTech leader expanding its UK engineering presence.

We're looking for a Senior C++ Software Engineer to join a growing team focused on building and maintaining secure, high-throughput systems enabling real-time global payments.

In this role, you’ll work on the design and development of core backend components in modern C++, collaborating with a high-calibre team to ensure performance, scalability, and reliability in a demanding production environment.

This is a product-driven role offering strong ownership and the opportunity to shape how mission-critical financial systems are developed. You’ll be working in a collaborative environment with a strong emphasis on engineering best practices and long-term maintainability.

Key Requirements:

• Strong experience in modern C++ (C++11/14/17/20) in a production environment
• Deep understanding of performance-optimized, multi-threaded systems
• Experience with design patterns, object-oriented design, and refactoring techniques
• Proficiency in version control, testing, and peer code review practices
• Comfortable working with APIs and structured data (e.g. JSON, XML)
• Strong analytical and problem-solving skills
• Exposure to embedded systems or low-level systems development
• Background in C programming, particularly for system-level code
• Experience working in Linux environments
• Knowledge of regulated or security-critical domains (e.g. finance, telecoms)

If you're an experienced C++ developer looking to work on systems that make a real global impact, apply via the link or contact Graeme King at IT Search for a confidential conversation.