Jeroen Van Warmerdam
Lead Mobile Developer at Health Cloud Initiative
Haarlem, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJeroen Van Warmerdam is a Lead Mobile Developer with 16 years of full-stack experience, currently shaping a cross-EPD React Native mobile platform at Health Cloud Initiative while owning architecture, security, DX and testing practices. He pairs deep .NET Core and C# expertise with front-end skills in TypeScript, Angular and React Native, and routinely contributes to open-source projects improving both UI ergonomics and back-end reliability. As a hands-on tech lead he has led teams, converted legacy solutions, and established DevOps pipelines across Azure and CI systems for multi-project landscapes. His work on popular community tools—like enhancements to refined-github and sync-settings—underscores a practical commitment to developer productivity and polished interfaces. Outside software he’s mechanically inclined (truck, forklift and vehicle operation experience), which surfaces in a pragmatic, get-things-done approach to engineering and delivery. Based in Haarlem, NL, he combines strong documentation and testing advocacy with a constant curiosity for new languages and frameworks.
16 years of coding experience
18 years of employment as a software developer
Bachelor’s Degree Information and Communication Technology, Bachelor’s Degree Information and Communication Technology at Inholland University of Applied SciencesHBO Architecture, HBO Architecture at Amsterdam University of Applied SciencesMAVO MAVO, MAVO MAVO at Mendel CollegeLiduina schoolMBO Architecture, MBO Architecture at Nova College
Dutch, English
Stackoverflow
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0reached
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Github Skills (22)
javascript10
expressjs10
coffeescript10
back-end-development10
browser-extension10
nodejs10
async9
testing9
asynchronous9
typescript9
css9
typescript-types9
jtest9
jasmine-tests9
typescripts9
Programming languages (22)
Github contributions (5)
atom-community/sync-settings
Apr 2015 - Mar 2016
Synchronize all your settings and packages across atom instances
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 release, 55 commits, 48 PRs in 10 months
Contributions summary:Jeroen contributed to the Atom plugin by implementing features and fixing bugs related to synchronizing settings and packages. They added functionality to back up and restore settings, packages, keymaps, styles, and snippets. The user also refactored code, renamed functions, and added unit tests to improve the plugin's reliability. They also implemented tracking.
instancesrelease-managementsynchronizesyncthingatom
OpenUserJS/OpenUserJS.org
Nov 2013 - Dec 2014
The home of FOSS user scripts.
Role in this project:Back-end Developer
Back-end DeveloperContributions:98 commits, 20 comments, 11 issues in 1 year
Contributions summary:Jeroen primarily focused on back-end development, as demonstrated by modifications to `app.js` to use environment variables for the listening port and several changes to administrative functionalities. Further, the user implemented a waiting mechanism, indicating their work involved handling asynchronous operations. Finally, the user made minor changes to the authentication controllers and related libraries, which demonstrates a focus on API-related back-end logic.
userscript-managementexpressjsjavascriptexpressfoss
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