Jelle Geertsma
Data Scientist
Randstad, Netherlands
Summary
👤
Senior🎓
Top SchoolJelle Geertsma is a data scientist with 12 years of experience applying R programming, psychometric test development, and interactive online tool design to business psychology and HR contexts. Based in the Randstad, he combines roles as a practitioner at LTP Business Psychologen with long-standing entrepreneurial experience running his own consultancy since 2008. His background spans big-data projects and innovation at eelloo, methodology and consulting in HR, and academic research roles—giving him a rare mix of rigorous research chops and product-focused delivery. He has hands-on QA/test automation experience in open-source blockchain tooling (contributions to ethereum/populus), reflecting attention to robust testing and complex technical workflows beyond his core domain. Jelle also brings a creative side as a bronze sculptor, which informs a practical, design-minded approach to building engaging user experiences.
12 years of coding experience
2 years of employment as a software developer
MaartenscollegeDoctorandus, Doctorandus at Rijksuniversiteit GroningenLauwers CollegeLytse Wiman
Github Skills (11)
smart-contracts10
pytest10
python10
ethereum10
testing10
solidity9
web-framework8
app-framework8
application-framework8
docker4
dockers4
Programming languages (7)
Github contributions (5)
ethereum/populus
Feb 2016 - Feb 2016
The Ethereum development framework with the most cute animal pictures
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 commits, 7 PRs, 2 comments in 4 days
Contributions summary:Jelle primarily contributed to improving the testing infrastructure within the `ethereum/populus` repository. They modified existing test files, including tests for Solidity compilation and deployment, updating file paths and project configurations. Their work also involved fixing tests related to the project initialization process, and addressing potential issues related to timeouts in the geth node.
pythonpopuluspicturesethereumframework
Backfeed/backfeed-restapi
Apr 2016 - May 2016
Contributions:67 commits, 40 pushes, 1 branch in 1 month
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.