Erik-jan Westendorp is a .NET and Umbraco specialist with nine years of hands-on experience building and improving enterprise web solutions, now serving as Managing Consultant at ilionx. He combines backend engineering with practical product thinking—contributing to the core Umbraco CMS (fixing content-deletion bugs, improving media handling and dashboard UX) and earning recognition as an Umbraco MVP. His background includes leading teams as a Scrum Master and shipping customer-facing features across consultancy and agency environments. Based in Zwolle, he brings a pragmatic blend of code-level expertise and leadership that helps bridge developer work with client outcomes.
9 years of coding experience
8 years of employment as a software developer
Bachelor of Science (BSc), Informatica, Bachelor of Science (BSc), Informatica at Christelijke Hogeschool Windesheim
Umbraco is a free and open source .NET content management system helping you deliver delightful digital experiences.
Role in this project:
Back-end Developer
Contributions:7 reviews, 33 commits, 66 PRs in 2 years 9 months
Contributions summary:Erik-jan primarily contributed to the Umbraco CMS codebase by modifying core files related to security constants, media handling, and dashboard configurations. They renamed parameters, added new extension methods, and updated dashboard layouts to improve UI. The user also addressed bugs in the content deletion controller, specifically related to error handling and dialog management, ensuring a better user experience.
The simple, flexible and friendly ASP.NET CMS used by more than 730.000 websites
Contributions:93 pushes, 134 branches in 3 years 3 months
cmsasp-net-mvcaspasp-net-core-mvcasp-net
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Erik-jan Westendorp - Managing Consultant at ilionx