Senior Software Engineer - C# / .NET

Salary: £60,000 - 70,000 per year

Requirements:

• Strong commercial record of full-stack software development across web and Windows applications
• Strong skills across C# / .NET, ASP.NET, JavaScript, HTML, CSS and SQL Server
• Experience developing software for Windows, multiple browsers and mobile-supported environments
• Good understanding of software architecture, object-oriented design, maintainable coding practices and software engineering principles
• Comfort working across UI, application, integration and data layers
• Ability to analyse requirements, propose technical solutions and communicate clearly with technical and non-technical stakeholders
• Exposure to Python, C/C++, VB or SQL is desirable
• Experience with unit and component testing for software modules is desirable
• Experience with automated build or CI/CD processes is desirable
• Experience with cloud-based deployment, automation, staging or testing is desirable
• Familiarity with Jenkins, GitHub, Jira or similar tooling is desirable

Responsibilities:

• Develop and enhance features for a key software solution managing client-side data from any browser, on-premises or in the cloud, using C#, .NET, ASP.NET, JavaScript, HTML, CSS and SQL Server
• Analyse technical requirements and translate them into clear, testable software tasks and specifications
• Design, implement and maintain new software features, ensuring solutions are scalable, reusable, maintainable and aligned with functional and non-functional requirements
• Define and integrate interfaces between internal and external systems, collaborating with other technical teams to agree robust specifications
• Contribute to user-facing application development, including process flows, information architecture, wireframes and usability-focused interface delivery
• Follow coding standards and ensure code is integrated frequently into automated build and continuous integration processes
• Write and maintain unit tests, investigate test failures and support automated verification activities where required
• Debug, troubleshoot and diagnose performance, integration and functional issues across development, test and production environments
• Review code produced by other engineers, identifying design or implementation issues and helping maintain high software quality
• Mentor junior engineers and promote best practice in software design, development, testing and maintainability
• Work closely with product, development, automation and DevOps teams to support high-quality software delivery

Technologies:

• ASP.NET
• C#
• CI/CD
• Cloud
• CSS
• DevOps
• GitHub
• Support
• JIRA
• JavaScript
• Jenkins
• Mobile
• Python
• SQL
• Web
• Windows
• UX UI Design

More:

We are a supportive, award-winning organisation with a growing product line that is making a significant difference globally. This is a senior hands-on development role based near Edinburgh, with hybrid working, flexible start and finish times, a generous bonus scheme, annual salary reviews, and strong opportunities to upskill and progress professionally. We also offer a range of additional benefits designed with employee happiness in mind.

last updated 32 week of 2026