Geert Gerritsen
Senior Software Engineer at G² Software
Lisbon, Lisbon, Portugal
Summary
🤩
Rockstar🎓
Top SchoolGeert Gerritsen is a Senior Software Engineer with 11 years of experience building high-scale, resilient systems across classifieds, mobility, and blockchain domains from Lisbon. He has repeatedly led teams and technical migrations—scaling chat services to millions of users at eBay, doubling e-scooter fleets at felyx, and extending authentication systems to provide 30-day sessions and breached-password protections. Comfortable from hands-on coding in Go, Java and Postgres to cloud-native orchestration with Kubernetes, he combines engineering leadership with consultancy through his own company and ongoing advisor roles. Geert’s background in AI, knowledge engineering and psychology gives him a distinctive systems-plus-human perspective that guides pragmatic, data-driven product and security decisions.
11 years of coding experience
13 years of employment as a software developer
BSc, Psychology, BSc, Psychology at Maastricht UniversityBSc, Computer Science & Psychology, BSc, Computer Science & Psychology at Université de MontréalLanguage track (CM-profiel) with Mathematics B and Biology, Language track (CM-profiel) with Mathematics B and Biology at Stedelijk Gymnasium Nijmegen
Dutch, English, French, German
Stackoverflow
1reputation
0reached
3answers
0questions
Github Skills (98)
dm10
message-queue10
stream-processing10
cqrs10
rabbitmq10
stream10
stream-processor10
golang10
kafka10
event-sourcing10
mocking10
message-bus10
generics10
jq10
streaming-data10
Programming languages (8)
Github contributions (5)
ggerritsen/ggerritsen.github.io
Jul 2020 - Mar 2023
Contributions:27 pushes, 3 branches in 2 years 8 months
ggerritsen/colfer
May 2016 - Jun 2020
Contributions:1 push, 2 branches in 4 years 1 month
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