Umbraco CMS .NET Developer

Salary: £50,000 - 50,000 per year

Requirements:

• Strong commercial experience with C#, .NET, .NET Core and ASP.NET Core
• Strong commercial experience with Umbraco CMS, including developing and supporting commercial Umbraco solutions
• Full-stack web application development experience
• Experience with MVC and modern web application architecture
• Experience with HTML5, CSS/SCSS, and JavaScript and/or TypeScript
• Experience designing, developing and consuming REST APIs and web services
• Experience with Microsoft SQL Server
• Experience with Entity Framework or Entity Framework Core
• Experience with Git and source control
• Experience integrating APIs and third-party systems
• Experience debugging, troubleshooting and performance optimisation
• Strong experience with Umbraco CMS development and configuration
• Experience with custom components, content models, document types, templates and views
• Experience with dependency injection, custom controllers and services, and Umbraco APIs
• Experience with packages, extensions, upgrades and migrations in Umbraco solutions
• Experience with performance optimisation, security and permissions in Umbraco
• Experience integrating external applications and services
• Experience with recent versions of Umbraco, particularly Umbraco 10+, 13 or later, is highly advantageous
• Experience with Azure and cloud-hosted applications is desirable
• Experience with Azure DevOps and CI/CD pipelines is desirable
• Experience with JavaScript frameworks such as Angular, React or Vue is desirable
• Experience with headless CMS architecture is desirable
• Experience with e-commerce platforms and integrations is desirable
• Strong analytical and problem-solving skills
• Ability to work independently and take ownership of technical challenges
• Ability to understand complex business requirements and translate them into technical solutions
• Effective communication skills with technical and non-technical colleagues
• Proactive approach to identifying risks, issues and opportunities for improvement
• Willingness to share knowledge and support the wider development team

Responsibilities:

• Design, develop and maintain high-quality web applications using C#, .NET and ASP.NET Core
• Develop and maintain websites and digital platforms using Umbraco CMS
• Build reusable Umbraco components, templates, content models and functionality
• Develop both front-end and back-end functionality as part of full-stack solutions
• Design, develop and consume RESTful APIs and web services
• Integrate Umbraco and .NET applications with third-party platforms, APIs and business systems
• Develop responsive, accessible and user-friendly front-end interfaces
• Work with relational databases, particularly Microsoft SQL Server
• Maintain, enhance and modernise existing applications and legacy solutions
• Diagnose and resolve complex application, performance and integration issues
• Contribute to application architecture, technical design and development standards
• Produce clean, maintainable, secure and well-documented code
• Participate in code reviews and promote development best practice
• Work closely with Business Analysts, Project Managers, Testers and other Developers throughout the software development lifecycle
• Translate business and functional requirements into appropriate technical solutions
• Support testing, deployment, release and production support activities
• Provide technical guidance and mentoring to less experienced developers where appropriate
• Identify opportunities to improve performance, security, maintainability and scalability across our applications

Technologies:

• ASP.NET
• Angular
• Azure
• C#
• CI/CD
• Cloud
• CMS
• CSS
• DevOps
• Git
• HTML5
• Support
• JavaScript
• LESS
• MVC
• REST
• React
• SCSS
• SQL
• Security
• TypeScript
• Umbraco
• Vue
• Web
• API

More:

We are PSP IT, a growing technology business based in Spalding, Lincolnshire, specialising in digital transformation, bespoke software development, enterprise applications, and the ongoing support and modernisation of business-critical systems. We work closely with our clients to understand their challenges and deliver robust, scalable, and effective technology solutions. This is a 6-month contract role, possibly leading to permanent, within our Development team. The role is primarily office-based, with hybrid working considered for the right applicant. We offer the opportunity to work on a varied portfolio of projects across bespoke software, digital transformation, and customer-facing platforms, with real influence over technical solutions, development standards, and the way applications are designed and delivered. The salary is up to £50,000 per year.

last updated 33 week of 2026