Staff Software Engineer - .NET - Belfast

• Lead the design and delivery of scalable backend services using C# and .NET
• Provide technical leadership across a team of engineers at varying levels
• Contribute to architecture decisions across high-throughput, distributed systems
• Design and build secure, resilient services aligned to industry standards
• Guide teams on best practices across coding, testing, and system design
• Contribute to CI/CD pipelines and support release and deployment processes
• Troubleshoot and resolve complex production issues
• Provide accurate estimates across projects and technical initiatives
• Collaborate with cross-functional teams to deliver product roadmap features
• Mentor engineers through code reviews, coaching, and knowledge sharing

Technologies:

• Backend
• C#
• CI/CD
• Frontend
• Support
• SQL
• Security
• Web
• ASP.NET
• AWS
• Cloud
• CSS

• 6 years commercial software engineering experience
• Strong experience with C# and .NET in backend environments
• Experience building scalable web services and distributed systems
• Strong understanding of relational databases such as SQL Server
• Experience working with CI/CD pipelines and automation tools
• Experience with automated testing approaches
• Strong understanding of software design principles and patterns
• Experience working in Agile, Scrum, or Lean environments
• Strong problem-solving and communication skills
• Nice to Have: Experience working within payments or regulated environments
• Nice to Have: Understanding of PCI or security-focused development practices
• Nice to Have: Exposure to frontend technologies such as HTML and CSS

We are a high-scale payments engineering company based in Belfast, offering a hybrid working model where youll spend 3 days in our office. In this role, youll be at the forefront of processing large volumes of real-time transactions, contributing to our engineering culture that emphasizes quality and ownership. We provide a competitive salary along with benefits such as WFH allowance, a pension fund, and medical aid. Join us to step into a true technical leadership position with clear progression opportunities in a growing engineering function.