Mark Ijbema
Groningen, Groningen, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolMark Ijbema is a Senior Software Engineer and entrepreneur with 15 years of experience building maintainable web systems, leading architecture efforts, and rescuing legacy codebases. Based in Groningen, he balances hands-on coding with mentorship and teaching—having improved university course tooling and mentored many junior developers. His work spans front-end heavy JavaScript (Backbone, React), Ruby on Rails backends, Django repairs, and QA/test automation contributions to notable open-source exercises like exercism/ruby. He has repeatedly taken roles that emphasize performance, security and practical engineering process improvements, from university projects to startup products. As founder of two consultancies and a senior engineer at multiple organizations, he brings both entrepreneurial pragmatism and deep technical craft to complex, “impossible” problems.
15 years of coding experience
14 years of employment as a software developer
VWO English Dutch Latin Mathematics A Mathematics B Science Chemistry History, VWO English Dutch Latin Mathematics A Mathematics B Science Chemistry History at Willem Lodewijk GymnasiumMsC Computer Science, MsC Computer Science at University of Groningen
English, Dutch
Stackoverflow
4,035reputation
512kreached
122answers
8questions
recursion
top-5%
regex
top-5%
Github Skills (16)
minitest10
ruby10
test-automation10
testing10
recursion9
regex9
tracks7
django-urls6
html6
css6
big-o6
javascript6
redis6
python6
post6
Programming languages (12)
Github contributions (5)
exercism/ruby
Aug 2013 - Jan 2015
Exercism exercises in Ruby.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:10 commits, 1 PR, 1 push in 1 year 5 months
Contributions summary:Mark primarily contributed to the test suite within the exercism/ruby repository. Their work involved modifying and adding test cases to existing exercises, specifically focusing on problems like "anagram" and "leap". They also addressed issues related to spelling and code clarity within the test files, which indicates a focus on test quality and accuracy. Further changes involved modifying tests in relation to refactoring efforts, notably in the "grade-school" example.
rubyexercism-trackcommunity-contributions-paused
Factlink/pavlov
Oct 2012 - Feb 2018
Contributions:123 commits, 1 PR, 1 push in 5 years 5 months
queryinteractorphpcommand-querycli
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.