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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Developer - **Company:** VanRath - **Location:** Belfast, UK - **Experience:** Expert - **Salary:** £55,000.0 - £70,000.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, JavaScript (Programming Language), .NET Framework, Computing Platforms, HTML5, Microsoft Azure, Bootstrap (Software), C Sharp (Programming Language), Cascading Style Sheets (CSS), Software Design Patterns, Entity Framework, Windows Communication Foundation, JQuery, Microsoft SQL Server, Model View Controller (MVC), Commercial Software, Systems Integration, Web Application Frameworks, Test-Driven Development (TDD), .NET Core, ReactJS, Git, Solid Principles, Build Tools, Front End Software Development, Restful APIs, Elastic Beanstalk, Software Version Control - **Published:** August 13, 2026 - **Apply:** https://www.careerjet.co.uk/job/gb643f995c0a8f3c56e8148d016e545f55/eaa ## About the Role You will have 5+ years of commercial software development experience and be a proactive, self-motivated developer who can translate written requirements into functional and technical designs. You will be confident producing clean, efficient, and maintainable code and working collaboratively within an established development team. The role offers the opportunity to contribute to a product used internationally while continuing to develop your own technical skills and expertise. Right to Work & Location: Applicants must have existing UK right-to-work status, as visa sponsorship is not available for this position. Candidates must be Belfast-based, * Extensive commercial experience developing complex, maintainable object-oriented applications in C# * Strong experience with .NET Framework and MVC, with newer projects using .NET 10 and React * Proven experience building and integrating REST APIs or WCF services * Strong understanding and practical application of design patterns and SOLID principles * Experience working with Microsoft SQL Server * Proficiency in HTML5, JavaScript, jQuery, CSS, and front-end frameworks such as Bootstrap * Experience using Git for source control and Azure DevOps for repository and branch management * Experience with Entity Framework * Strong analytical and problem-solving skills * Ability to work effectively as part of a collaborative development team * Excellent communication and interpersonal skills, including the ability to explain technical concepts to technical and non-technical audiences * Ability to produce clear and structured technical documentation * Self-motivated approach to learning and keeping up to date with emerging technologies and industry trends * Strong organisational and time-management skills * Existing right to work in the UK - visa sponsorship is not available * Based in Belfast Desirable Criteria * Experience with Microsoft Azure PaaS services * Experience working with .NET Core / modern .NET * Experience with modern JavaScript frameworks, particularly React (v17+), and the npm ecosystem * Familiarity with modern front-end build tools and development workflows * Experience applying Test-Driven Development (TDD) practices * Relevant Microsoft certifications ## Description We are seeking an experienced Senior Software Developer to enhance and extend a well-established software platform. You will collaborate with the wider development team to build new public-facing websites and improve operational efficiency through the creation of reusable, scalable code. A key focus will be reducing duplication, improving maintainability, and supporting the long-term development of the platform., * Develop, maintain, and enhance multiple eCommerce websites * Integrate new UI/UX designs into existing web application frameworks * Implement user interfaces for new features based on client and design specifications * Design, develop, and maintain reusable components using jQuery and C# * Ensure high standards of performance, scalability, and security across solutions * Identify and implement improvements to existing systems and development processes * Collaborate closely with Development, QA, and Project Management teams to deliver high-quality outcomes ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [WeAreDevelopers LIVE - the weekly developer show with Chris Heilmann and Daniel Cranney](https://www.wearedevelopers.com/videos/1309-wearedevelopers-live-the-weekly-developer-show-with-chris-heilmann-and-daniel-cranney) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Web development best practices in 2021](https://www.wearedevelopers.com/videos/280-web-development-best-practices-in-2021) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)