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Erik-Jan Westendorp

PROFILE

Erik-jan Westendorp

Contributed to the UmbracoDocs and Umbraco-CMS repositories by delivering features and documentation that improved developer onboarding, observability, and internationalization. Focused on API development, TypeScript, and documentation, this work included aligning deprecation guidance, enhancing Swagger UI instructions, and clarifying rate-limiting for WAF and reverse proxy scenarios. Implemented localization for the Library section and Dutch translations to expand accessibility. Improved logging for background jobs and maintained consistency across multiple documentation versions. Addressed link management, terminology, and code readability, ensuring maintainable and accurate resources for both backend and frontend developers. Collaborated on technical writing and localization to support a global user base.

Overall Statistics

Feature vs Bugs

79%Features

Repository Contributions

55Total
Bugs
4
Commits
55
Features
15
Lines of code
586
Activity Months8

Work History

June 2026

4 Commits • 2 Features

Jun 1, 2026

June 2026 performance highlights for umbraco/Umbraco-CMS: Focused on internationalization to boost accessibility and onboarding for non-English users. Delivered two key localization features: (1) Library Section Header Localization (Multi-language) translating the Library header to Dutch, Spanish, and additional cultures; commits cd23fc75c584a17b42b86cd5278bae0eef14cdc6 and 230b5db528535c95922ed452f30b57e206eebe1d. (2) Dutch Create/Delete Actions Localization adding Dutch translations for create and delete actions; commits 8e3b821a55020c277277cf95ddf4b6438ff373da and 5ade6ae6ec5a98aed23b0376dd9da4665815c607. Collaboration: co-authored contributions with Andy Butland. Impact: improved non-English usability, reduced support friction, and strengthened localization pipeline for future expansions. No major bug fixes this month; work centered on delivering scalable localization features.

December 2025

4 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for umbraco/UmbracoDocs: Delivered rate-limiting documentation improvements for WAF/reverse proxy scenarios, clarifying that forwarding the original client IP is essential for accurate rate-limit enforcement and providing updated configuration guidance behind proxies. Updated guidance across multiple versions to ensure consistency and reduce misconfiguration.

November 2025

6 Commits • 2 Features

Nov 1, 2025

November 2025: Delivered targeted documentation enhancements in the umbraco/UmbracoDocs repo. Implemented Swagger UI caching guidance and explicit disable-caching instructions to ensure API definitions remain visible, reducing debugging time for API consumers. Refactored the custom dashboard by removing LitElement usage and streamlined code demos by updating tutorials and README examples for versions 15 and 17. These changes improve developer onboarding, increase reliability of API docs across versions, and strengthen documentation consistency and maintainability.

October 2025

10 Commits • 1 Features

Oct 1, 2025

2025-10 Monthly Summary for Umbraco development: Delivered key observability improvements for background jobs in Umbraco-CMS and strengthened documentation accuracy in UmbracoDocs, driving reliability and faster onboarding. The work focused on business value: improved monitoring of scheduled tasks, corrected and clarified health checks, and consistent documentation across the docs repo.

March 2025

2 Commits • 1 Features

Mar 1, 2025

Month: 2025-03 — Delivered documentation alignment for the Umbraco Workflow feature by renaming 'Content App' to 'Workspace View' across the UmbracoDocs and correcting the SUMMARY.md link to point to the Workspace View documentation page. The changes improve terminology consistency and navigation accuracy for developers and users, with traceability to issue #6954.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for umbraco/UmbracoDocs: Delivered Extension Conditions Documentation Enhancement to improve clarity by replacing 'i.e.' with 'such as' across two sections (multiple app languages and current user admin status). Implemented via commit 962e8531e068dae51bc44b6792d31dc5bf23e370.

January 2025

26 Commits • 6 Features

Jan 1, 2025

January 2025 — UmbracoDocs: Focused on enhancing documentation clarity, accuracy, and maintainability to accelerate developer onboarding and reduce support overhead. Key outcomes include code block readability improvements with explicit language specifiers; comprehensive versioned docs updates across v10/v13/v14/v15 and related articles; fixes for broken links and editorial cleanups; and tooling upgrades aligned with the latest Umbraco releases (TipTap Extensions and built-in editors to v15) with wide version-reference alignment.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024: UmbracoDocs focused on deprecation alignment and documentation cleanup to ensure forward compatibility with newer Umbraco versions. The work reduces runtime warnings and clarifies current guidance for developers.

Activity

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Quality Metrics

Correctness99.6%
Maintainability99.6%
Architecture99.6%
Performance99.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

C#JSONJavaScriptMarkdownTypeScript

Technical Skills

API DevelopmentAPI developmentAPI managementAPI securityBackend DevelopmentContent Management SystemsDocumentationFront-end DevelopmentLink ManagementLoggingSwaggerTypeScriptdocumentationfront end developmentinternationalization

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

umbraco/UmbracoDocs

Nov 2024 Dec 2025
7 Months active

Languages Used

C#MarkdownJSONJavaScriptTypeScript

Technical Skills

API DevelopmentDocumentationContent Management SystemsFront-end DevelopmentLink ManagementAPI development

umbraco/Umbraco-CMS

Oct 2025 Jun 2026
2 Months active

Languages Used

C#TypeScript

Technical Skills

Backend DevelopmentLoggingTypeScriptfront end developmentinternationalizationlocalization