Joep Meindertsma
Founder Volunteer at Ontola
Soest, Utrecht, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJoep Meindertsma is a founder and CEO with 11 years building web applications, linked data platforms and open-source infrastructure from the Netherlands. He leads Ontola and the AtomicServer project, contributing hands-on to back-end serialization and TypeScript migrations for rdflib.js, and champions interoperable data through standards-focused products like Dexes. Joep also founds and organizes impact-driven initiatives—PauseAI and Argu—blending technical leadership with civic activism to shape tech governance and public participation. His work uniquely combines full-stack engineering, open-data evangelism and grassroots organizing, evidenced by international protests and widely used open-source contributions.
11 years of coding experience
3 years of employment as a software developer
Bachelor's Degree, Science and Innovation Management (Natuurwetenschap & Innovatiemanagement), Bachelor's Degree, Science and Innovation Management (Natuurwetenschap & Innovatiemanagement) at Universiteit UtrechtVWO / Atheneum, VWO / Atheneum at Het Baarnsch Lyceum
English, Dutch
Stackoverflow
4,396reputation
336kreached
11answers
2questions
meta-tags
top-1%
html
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javascript
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greasemonkey
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Github Skills (25)
javascript10
type-check10
http-handler10
typescript10
data-serialization10
serialization10
meta-tags10
typescript-types10
greasemonkey10
html10
type-checking10
typescripts10
rust10
testing9
web-development9
Programming languages (25)
Github contributions (5)
atomicdata-dev/atomic-server
Jul 2020 - Jan 2023
An open source headless CMS / real-time database. Powerful table editor, full-text search, and SDKs for JS / React / Svelte.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:18 releases, 83 reviews, 1320 commits in 2 years 7 months
Contributions summary:Joep contributed to the `atomic-server` repository by implementing features related to extensions and mime types. They refactored code in the `handlers/resource.rs` and `handlers/tpf.rs` files, including handling different content types like JSON, JSON-LD, HTML, Turtle, and AD3. Furthermore, they worked on the CLI, content types and serialization logic.
rust-librarysledconsistsclidatabase-server
linkeddata/rdflib.js
Oct 2019 - Jan 2020
Linked Data API for JavaScript
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:1 review, 26 commits, 5 PRs in 3 months
Contributions summary:Joep primarily focused on migrating the `rdflib.js` repository to TypeScript. Their contributions included setting up the basic TypeScript configuration, migrating existing code to TypeScript, and fixing type-related issues throughout the project. They also worked on improving and refactoring various aspects of the codebase, including typeguards, and tests while updating the necessary dependencies.
json-ldapidata-apidatalinked-data
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