Jaap Roes
Tech Lead at Waterschap Rijn en IJssel
Arnhem, Gelderland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJaap Roes is a tech lead with 17 years of experience designing and maintaining robust Django-based backends, now leading engineering at Waterschap Rijn en IJssel from Arnhem. He favors clean, well-tested, and well-documented code, with refactoring and peer review as core practices that keep long-lived systems maintainable. Jaap brings deep practical knowledge of Django internals and the Python ecosystem, demonstrated through meaningful contributions to high-profile projects like Django itself, Wagtail, and django-oauth-toolkit. He combines an agile, problem-first approach with hands-on work across models, admin interfaces, caching, and i18n, often improving compatibility and modernizing legacy code. Colleagues rely on him to simplify complex codepaths and to shepherd upgrades across versions while preserving usability. Trained in digital media design, he pairs technical rigor with an eye for developer UX and maintainability.
17 years of coding experience
20 years of employment as a software developer
Bachelor of Arts (BA), Digital Media Design, Bachelor of Arts (BA), Digital Media Design at Hogeschool voor de Kunsten UtrechtHAVO, HAVO at Christelijk College Schaersvoorde
Dutch, English
Stackoverflow
2,756reputation
78kreached
42answers
10questions
django
top-5%
database
top-5%
Github Skills (50)
cms10
javascript10
lib10
python10
back-end-development10
django10
css10
testing10
openid-connect10
tree-structure10
static-files10
orm10
database-management10
refactoring10
oauth10
Programming languages (13)
Github contributions (5)
django-fiber/django-fiber
Jan 2015 - Feb 2022
Django Fiber - a simple, user-friendly CMS for all your Django projects
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 reviews, 166 commits, 23 PRs in 7 years 2 months
Contributions summary:Jaap primarily focused on enhancing the Django Fiber CMS by addressing bugs and implementing improvements related to image handling within the editor. Their work included fixing image selector issues, integrating image resources, and handling potential exceptions during thumbnail generation. The user's contributions spanned changes in JavaScript, CSS, Python, and template files, showing a focus on the application's core functionalities. Moreover, they ensured the robustness of the image handling features within the CMS.
cmsdjangodjango-projectpython
SmileyChris/easy-thumbnails
Apr 2012 - Oct 2021
Easy thumbnails for Django
Role in this project:Back-end Developer
Back-end DeveloperContributions:29 commits, 3 PRs, 27 comments in 9 years 8 months
Contributions summary:Jaap primarily contributed to bug fixes and improvements within the Django-based "easy-thumbnails" project. Their work addressed issues related to image processing, Django compatibility, and deprecated functionalities, specifically focusing on the core functionality. The commits demonstrate a strong understanding of the project's internal workings, including file handling, thumbnail generation, and integration with Django settings and dependencies. These contributions improved the robustness, and maintainability of the library.
djangoeasy-thumbnails
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