Senior Umbraco .NET Developer

Salary: £45,000 - 55,000 per year

Requirements:

• Strong commercial experience with Umbraco CMS development
• Proven background with C#, .NET / .NET Core and ASP.NET Core
• Full-stack development experience including HTML, CSS/SCSS and JavaScript
• Experience with SQL Server, Entity Framework and API integrations
• Ability to troubleshoot complex technical issues and deliver scalable solutions
• Desirable experience with Azure, Azure DevOps, CI/CD or modern JavaScript frameworks

Responsibilities:

• Develop and maintain web applications using C#, .NET and ASP.NET Core
• Build and enhance sophisticated websites and digital platforms using Umbraco CMS
• Design and integrate REST APIs and third-party business systems
• Contribute to architecture, technical design and development standards
• Support, modernise and optimise existing applications and platforms
• Mentor and provide technical guidance to other developers

Technologies:

• API
• ASP.NET
• Azure
• C#
• CI/CD
• CMS
• CSS
• DevOps
• Support
• JavaScript
• REST
• SCSS
• SQL
• Umbraco
• Web
• Cloud

More:

We are a growing technology business specialising in digital transformation, bespoke software development and enterprise applications. This is a senior hybrid role based in Spalding, Lincolnshire, with 3 days on-site. We offer the opportunity to work on technically varied projects, delivering high-quality web platforms and CMS-driven solutions for a diverse client base while helping to shape development standards and best practices across the team. The role includes the chance to develop leadership and architectural expertise, working across the full software development lifecycle from technical design through to deployment and support. The advertised salary is £45,000 - £55,000 plus holiday and pension, and we welcome applications from all suitable candidates.

last updated 35 week of 2026