Software Engineer, Backend Developer, Full Stack Developer

Position: Staff Software Engineer
Job Title:

Staff Software Engineer

Location:

Belfast / Northern Ireland (remote-first, commuting distance required) Salary: 65,000 – 70,000

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 Lead and mentor a team of software engineers across varying experience levels

Design, develop, review, and maintain complex, high-quality codebases

Provide technical guidance on testing strategies, validation, and quality standards

Contribute to architectural decisions and system design for scalable services

Estimate effort for complex initiatives and support delivery planning

Support deployment activities across test and production environments

Troubleshoot complex issues and communicate solutions clearly to technical and non-technical stakeholders

Promote best practices in coding standards, design patterns, and continuous improvement

Support onboarding and on-the-job training for engineers within the team Required Experience Degree in Computer Science or a related discipline6+ years of professional software development experience

Strong server-side development experience using C# / .NET Experience designing and implementing scalable web or service-based solutions

Solid experience with relational databases (e.g. SQL Server or equivalent)
Experience working in CI/CD environments (e.g. Jenkins, Git Lab, Bamboo)
Strong background in automated testing (unit testing, BDD frameworks)
Good understanding of software design principles, OOP, refactoring, and design patterns

Experience working in Agile delivery environments (Scrum, Kanban, Lean)
Strong analytical skills and ability to solve complex technical problems

Excellent communication and collaboration skills

Must be based in Northern Ireland or within commuting distance of Belfast, with the full rights to work in the UKNice to Have

Experience with UI technologies (HTML, CSS)
Exposure to software architecture, systems administration, or information security

Experience working on high-availability or high-throughput systems

Benefits

Competitive salary

Remote-first flexible working (office available in central Belfast)26 days annual leave plus bank holidays (increasing with service)
Private medical and dental insurance

Life insurance, income protection, and critical illness cover

Pension with employer matching (5%–8%) and salary sacrifice options

Enhanced company-paid maternity leave

Cycle to work and electric car schemes

Employee stock purchase plan Regular company social events and community initiatives#LI-JM2

Discipline(s):
Technology & ITJob type:
Permanent