Job Title: Staff Software Engineer
Location: Belfast / Northern Ireland (remote-first, commuting distance required)
Salary: £65, – £70,
Employment Type: Permanent, Full-time
Overview
We are working with a well-established technology organisation that builds and operates large-scale, highly available platforms used by customers of all sizes. The engineering team in Belfast owns the development and ongoing enhancement of a mission-critical platform that processes very high transaction volumes, where performance, resilience, and reliability are key.
This role is suited to a senior engineer who enjoys technical leadership, hands-on development, and mentoring others, while working closely with product and engineering stakeholders.
The Role
As a Staff Software Engineer, you will provide technical leadership within a cross-functional engineering team, contributing to both architectural decisions and day-to-day development. You will guide the delivery of features from the product roadmap, ensure high engineering standards, and support the growth of less-experienced engineers.
You’ll work across back-end and, where required, front-end components, helping to design and build scalable, robust services in a modern CI/CD environment.
Key Responsibilities
1. Lead and mentor a team of software engineers across varying experience levels
2. Design, develop, review, and maintain complex, high-quality codebases
3. Provide technical guidance on testing strategies, validation, and quality standards
4. Contribute to architectural decisions and system design for scalable services
5. Estimate effort for complex initiatives and support delivery planning
6. Support deployment activities across test and production environments
7. Troubleshoot complex issues and communicate solutions clearly to technical and non-technical stakeholders
8. Promote best practices in coding standards, design patterns, and continuous improvement
9. Support onboarding and on-the-job training for engineers within the team
Required Experience
10. Degree in Computer Science or a related discipline
11. 6+ years of professional software development experience
12. Strong server-side development experience using C# / .NET
13. Experience designing and implementing scalable web or service-based solutions
14. Solid experience with relational databases (e.g. SQL Server or equivalent)
15. Experience working in CI/CD environments (e.g. Jenkins, GitLab, Bamboo)
16. Strong background in automated testing (unit testing, BDD frameworks)
17. Good understanding of software design principles, OOP, refactoring, and design patterns
18. Experience working in Agile delivery environments (Scrum, Kanban, Lean)
19. Strong analytical skills and ability to solve complex technical problems
20. Excellent communication and collaboration skills
21. Must be based in Northern Ireland or within commuting distance of Belfast, with the full rights to work in the UK
Nice to Have
22. Experience with UI technologies (HTML, CSS)
23. Exposure to software architecture, systems administration, or information security
24. Experience working on high-availability or high-throughput systems
Benefits
25. Competitive salary
26. Remote-first flexible working (office available in central Belfast)
27. 26 days annual leave plus bank holidays (increasing with service)
28. Private medical and dental insurance
29. Life insurance, income protection, and critical illness cover
30. Pension with employer matching (5%–8%) and salary sacrifice options
31. Enhanced company-paid maternity leave
32. Cycle to work and electric car schemes
33. Employee stock purchase plan
34. Regular company social events and community initiatives
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