Senior C++ Software Engineer

ZipRecruiter; Belfast; Remote; GBP 60,000 - 90,000; Full time

Job summary

A leading global FinTech organization is looking for a Senior C++ Software Engineer to join their expanding UK engineering team. In this product-driven role, you will develop core backend components and ensure the performance of secure, high-throughput systems for real-time global payments, working within a collaborative environment emphasizing engineering best practices.

Benefits

Market based salary

Bonus

Excellent benefits package

Qualifications

• Strong experience in modern C++ (C++11/14/17/20) in production.
• Understanding of performance-optimized systems.
• Experience with design patterns and testing practices.

Responsibilities

• Design and develop core backend components using modern C++.
• Collaborate on ensuring system performance and scalability.
• Contribute to maintaining secure global payment systems.

Skills

C++

Multi-threaded systems

Object-oriented design

APIs

Analytical skills

Job description

Job Description

Senior C++ Software Engineer

Global FinTech

Remote (NI & RoI)

Permanent | Full-time

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 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

Desirable Experience:

• 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.