Jeroen Van Der Werven
Site Reliability Engineer at Mollie
Barendrecht, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolJeroen Van Der Werven is a seasoned Site Reliability Engineer with 24 years of hands-on experience building and operating resilient infrastructure across cloud and Unix environments. He combines broad, T-shaped expertise—from kernel and FreeBSD work to AWS, Terraform, Go and Python development—with a talent for taking ideas from prototype to production and writing clear technical documentation. Comfortable both as a hands-on engineer and a small-team lead, he excels at reducing friction during change, mentoring colleagues, and aligning technical solutions with organizational strategy. An active contributor to open-source internationalization (notably helping extend language plural rules in the widely used Python Babel project), he brings curiosity and a knack for digging deep to uncover elegant, reusable tooling. Based in the Netherlands, he seeks an in-house role where he can architect and deliver tools that empower other teams while advocating for ethical, well-documented technology.
24 years of coding experience
18 years of employment as a software developer
VWO, VWO at CSG Johannes CalvijnComputer Science, Computer Science at De Haagse Hogeschool / The Hague University of Applied SciencesHAVO Dutch English Economics Physics Science Mathematics B, HAVO Dutch English Economics Physics Science Mathematics B at Maarthen Luther
Dutch, English, German, French, Japanese, Korean, Norwegian
Stackoverflow
297reputation
12kreached
4answers
3questions
Github Skills (15)
i18n-js10
i18next10
x1010
python10
i18n-node10
l20n10
gettext9
java6
windows6
pycharm6
javascript6
google-chrome6
apache6
svn6
django6
Programming languages (25)
Github contributions (5)
python-babel/babel
Dec 2007 - Nov 2011
The official repository for Babel, the Python Internationalization Library
Role in this project:
Localization / Internationalization Specialist
Localization / Internationalization SpecialistContributions:61 commits in 4 years
Contributions summary:Jeroen primarily contributed to the internationalization efforts of the Babel library. They added plural form definitions for various languages, including Thai, Tibetan, Lao, Dzongkha, and Welsh, modifying the `babel/messages/plurals.py` file. Furthermore, the user made changes to ensure consistent English names for language names and addressed issues related to encoding when using `sys.stdout`. Their contributions focused on expanding language support and ensuring correct text formatting.
pythoncldrgettexti18nl10n
ashemedai/obl_clipcursor
Nov 2022 - Jul 2026
Contributions:1 release, 3 pushes, 9 branches in 3 years 8 months
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