Mathijs De Bruin
Founder & CTO at w3worx
Utrecht, Utrecht, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolMathijs De Bruin is a founder and CTO with 17 years of hands-on experience building web and mobile business apps, currently leading APPREO to simplify planning, digital work orders and time tracking for construction and cleaning teams. He runs multiple startups—including SynergyAI, IPFS-Search and VisualSpace—combining product leadership with deep back-end engineering experience in Django and decentralized search systems. Mathijs contributes meaningful open-source work (notably on an IPFS search crawler and a mature Django newsletter app), showing strength in indexing, task runners and pragmatic refactors. Based in Utrecht, he blends technical depth with commercial insight from an MSc in Marketing Management and a long history of bespoke app development at w3worx. Outside software he literally grows another startup—a forest—reflecting a practical, long-term approach to building products and impact.
17 years of coding experience
English B2.2 Upper-Intermediate 2 course, English B2.2 Upper-Intermediate 2 course at TTC Erasmus UniversityVWO, Economie & Maatschappij, VWO, Economie & Maatschappij at VLC AmersfoortMSc, Marketing Management, MSc, Marketing Management at RSM Erasmus University
Stackoverflow
995reputation
67kreached
5answers
0questions
python-sphinx
top-5%
Github Skills (25)
json10
python10
back-end-development10
django10
newsletter10
ipfs10
go10
amqp9
python-sphinx9
databases9
database9
elasticsearch8
elasticsearch-api8
elasticsearchquery8
aws-elasticsearch8
Programming languages (23)
Github contributions (5)
jazzband/django-newsletter
Jun 2009 - Nov 2020
An email newsletter application for the Django web application framework, including an extended admin interface, web (un)subscription, dynamic e-mail templates, an archive and HTML email support.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 releases, 645 commits, 91 PRs in 11 years 7 months
Contributions summary:Mathijs contributed to the development of the Django-based newsletter application, focusing on enhancements and core features. They added debugging tools and extended the admin interface, suggesting back-end development experience. The commits also show the user refactoring code and setting up database connections to improve data storage processes. They show a clear understanding of the Django framework, including template handling and view design.
pythonmail-templatesweb-interfacedjangoweb-application
ipfs-search/ipfs-search
Aug 2016 - Jan 2023
Search engine for the Interplanetary Filesystem.
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 1102 commits, 144 PRs in 6 years 6 months
Contributions summary:Mathijs implemented and modified core functionality for the `ipfs-search/ipfs-search` project, specifically focusing on the indexing process within the Interplanetary Filesystem (IPFS). They developed the initial crawling prototype, indexing files and directories. Furthermore, they integrated basic mimetype sniffing using `http.DetectContentType` and introduced a task runner for processing crawl tasks, and contributed improvements to the index data model.
golangipfsipfs-searchsearch-enginefilesystem
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