Bert Marcelis
Senior System Developer at Samtrafiken i Sverige AB
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolBert Marcelis is a Senior System Developer based in Stockholm with 12 years of experience building and leading engineering workstreams for public transport and open-data platforms. At Samtrafiken he progressed from System Developer to Technical Lead for Trafiklab and now serves as a senior developer shaping APIs and integrations used by commuters and partner services. He combines a strong industrial engineering background from Ghent University with practical PHP and systems administration experience, giving him a pragmatic approach to scalable, reliable back-end systems. An active open-data advocate, he volunteers with iRail and HyperRail and focuses on improving commuter experience through interoperable standards and open-source tooling. Colleagues rely on him to bridge product needs and developer ergonomics while keeping operations robust across live transport data feeds. He’s equally at home leading small project teams as he is diving into code to unblock critical production issues.
12 years of coding experience
5 years of employment as a software developer
Master’s Degree Industrial Engineering, Master’s Degree Industrial Engineering at Ghent UniversityHigh School Industrial sciences, High School Industrial sciences at Don Bosco Halle
Dutch, English, Swedish, French
Stackoverflow
296reputation
34kreached
11answers
2questions
Github Skills (122)
minecraft10
gtfs10
alsa10
php-library10
spotify10
api10
music10
mpd10
networkmanager10
spigot10
airplay10
java10
sonos10
native-android10
bukkit10
Programming languages (14)
Github contributions (5)
Bertware/iRail
Feb 2017 - Feb 2026
Contributions:17 pushes, 10 branches in 9 years 1 month
scraperapiscraper-api
trafiklab/openApi-docs
Nov 2019 - Feb 2025
OpenApi documentation for the Trafiklab APIs
Contributions:2 reviews, 2 PRs, 39 pushes in 5 years 4 months
openapi-documentation
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