Staff Software Developer - Belfast

Salary: £75,000 - 75,000 per year

Requirements

• 6 years software engineering experience
• Strong backend experience in .NET / C#
• Experience building scalable web services / distributed systems
• Strong understanding of software design and architecture
• Experience working in Agile environments
• Strong problem-solving and communication skills
• Must be based in NI / commutable to Belfast
• Nice to Have: Payments / fintech experience
• Nice to Have: PCI or security-focused environments
• Nice to Have: Frontend exposure (HTML, CSS)

Responsibilities

• Lead and mentor a team of engineers
• Design, build and maintain scalable backend systems and APIs
• Contribute to architecture, standards and engineering best practices
• Support testing, deployment and production environments
• Troubleshoot complex issues and drive solutions
• Collaborate with cross-functional teams to deliver roadmap features
• Ensure compliance with security and industry standards

Technologies

• Backend
• C#
• CSS
• Frontend
• Support
• Security
• Web
• ASP.NET
• UX UI Design

More

We are offering an opportunity for a Staff Software Engineer to join our high-performing Belfast-based engineering team working on a large-scale payment platform. This is a hands-on technical leadership role, where you will lead engineers while contributing to the design and development of highly scalable, high-availability systems processing millions of transactions daily. We provide 26 days holiday plus bank holidays (increasing with service), flexible and remote-first working, private medical and dental cover, a pension with 5-8% matched, enhanced maternity leave, life assurance and income protection, as well as electric car and cycle to work schemes and a share purchase plan. Join us in creating exceptional solutions!

last updated 15 week of 2026