Staff Software Engineer

Overview

As a Staff Software Engineer in Belfast, you will provide technical leadership within a cross-functional team, shaping architecture and delivering features for a high-transaction, mission-critical platform. You’ll mentor engineers, collaborate with product and engineering stakeholders, and contribute to scalable, robust services in a modern CI/CD environment. The role balances hands-on development with strategic direction to ensure performance and reliability at scale. You will work to drive engineering excellence and cross-team collaboration, aligning with the company’s mission to deliver resilient platforms.

Pay / Benefits

• Remote-first
• 26 days annual leave plus bank holidays
• Private medical and dental insurance
• Pension with employer matching
• Life insurance, income protection, and critical illness cover
• Stock purchase plan

Responsibilities

• Lead and mentor engineers across experience levels
• Design, develop, review, and maintain complex codebases
• Advise on testing strategies and quality standards
• Shape architectural decisions for scalable services
• Estimate effort and support delivery planning
• Support deployment across test and production environments
• Troubleshoot complex issues and communicate solutions to stakeholders
• Promote coding standards, patterns, and continuous improvement
• Assist onboarding and training for the team

Key requirements

• Degree in Computer Science or related discipline
• 6+ years of professional software development experience
• Strong server-side development with C# / .NET
• Experience designing and implementing scalable web or service-based solutions
• Relational databases experience (SQL Server or equivalent)
• Experience with CI/CD environments (e.g. Jenkins, GitLab, Bamboo)
• Strong automated testing background (unit testing, BDD)
• Understanding of software design principles, OOP, refactoring, design patterns
• Experience in Agile delivery (Scrum, Kanban, Lean)
• Strong analytical skills and problem-solving
• Excellent communication and collaboration skills
• Must be based in Northern Ireland or within commuting distance of Belfast with UK work rights

• Communication
• Collaboration
• Mentoring
• C# / .NET
• SQL Server or equivalent
• CI/CD tooling (Jenkins, GitLab, Bamboo)

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