# Simon Napper > Freelance .Net developer and Umbraco Certified Master based in the UK, with 29+ years of software development experience and 12+ years working with Umbraco CMS. ## About Simon Napper is a UK-based freelance .Net developer specialising in Umbraco CMS (versions 3 through to the latest release), C#, ASP.NET MVC, SQL Server, Azure, AWS, Cloudflare, and DevOps with TeamCity and Octopus Deploy. He holds the Umbraco Certified Master certification, is a Microsoft Certified Professional, and has a BSc in Computer Science and Artificial Intelligence. Simon is currently available for freelance projects including Umbraco builds, .Net development, architecture reviews, and consulting engagements. He also uses AI-assisted development tools including GitHub Copilot and Claude as part of his workflow. ## Key facts - Role: Freelance .Net Developer & Umbraco Certified Master - Location: United Kingdom - Experience: 29+ years in software development - Umbraco experience: 12+ years (since 2014), versions v3 to latest - Certifications: Umbraco Certified Master, Microsoft Certified Professional - Education: BSc Computer Science and Artificial Intelligence - Availability: Available for new freelance projects - Contact: hello@simonnapper.co.uk - LinkedIn: https://www.linkedin.com/in/simonwnapper ## Pages - [Homepage](https://www.simonnapper.co.uk/): Full portfolio including skills, background, endorsements and contact details.