Marcel Horlings
Team Lead - Software Developer at Wuunder
Roden, Drenthe, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolMarcel Horlings is a seasoned software leader with 12 years of experience who currently leads engineering as Team Lead - Software Developer at Wuunder in the Netherlands. He has a strong full-stack background, particularly in Ruby on Rails, demonstrated by hands-on contributions to the open-source Hours time-tracking app where he modernised the codebase and prepared it for production. Marcel progressed through senior and lead roles at Defacto and Tilig, balancing backend architecture, UI improvements, and team mentorship. He brings practical experience upgrading legacy systems to current Rails and testing stacks, reducing technical debt while shipping user-focused features. Based in Roden, Drenthe, he combines steady delivery with an eye for pragmatic refactors that improve maintainability. His engineering style favors incremental modernization and clear presenter-driven UI logic to keep product and code aligned.
12 years of coding experience
11 years of employment as a software developer
Bachelor of Science - BS Computer Software Engineering, Bachelor of Science - BS Computer Software Engineering at Hanze
Dutch, English
Stackoverflow
84reputation
4kreached
8answers
1question
Github Skills (18)
ruby-rails10
rails10
ruby10
rspec9
time-tracking9
activity-tracker9
html8
erb8
css7
activerecord6
ruby-on-rails6
actionpack6
facebook-graph-api6
devise6
jquery6
Programming languages (6)
Github contributions (5)
DefactoSoftware/Hours
Apr 2014 - Aug 2019
Time registration that doesn't suck
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:133 commits, 85 PRs, 114 pushes in 5 years 5 months
Contributions summary:Marcel primarily contributed to the "hours" time registration application, implementing features and refactoring existing code. Their work involved modifying Ruby on Rails files, including models, views, and controllers, suggesting a focus on backend logic and user interface interactions. The user introduced a project presenter, refactored category display, and updated views, updating to the latest Rails and Rspec versions and making the application ready for production.
railsregistrationtime-registrationruby
DefactoSoftware/heroku_scripts
May 2018 - Dec 2019
A wrapper around the pipelines of Heroku
Contributions:1 PR, 12 pushes, 3 branches in 1 year 7 months
pipelinesheroku
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