Martin Koster
Novice at Bigger Boat
Leidschendam, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolMartin Koster is a veteran full-stack software engineer with over 25 years building software and more than a decade of hands-on experience in modern web stacks, combining Java backends and rich JavaScript frontends like React and Angular. He has delivered mission-critical projects for enterprise clients including Nike, ING, KLM and government agencies, often bridging legacy systems to containerized, CI/CD-driven platforms. Comfortable as a freelancer and team lead, he excels at translating complex business KPIs into usable dashboards and interactive data tools. Based in Leidschendam, Netherlands, he pairs deep Java expertise with practical front-end craftsmanship and a knack for hitting the ground running on long-running projects he previously helped create. An investor and occasional technical owner, he brings both product-minded thinking and pragmatic engineering to every engagement.
11 years of coding experience
24 years of employment as a software developer
Matriculation, Matriculation at Pretoria Boys' High SchoolUniversity of South Africa
German, English, Dutch, Afrikaans
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (16)
mutation-testing8
cli8
state-machine7
angularjs7
testing7
command-line7
mutation7
router6
javascript6
chatgpt6
openai5
typescript4
gemini4
llama4
anthropic3
Programming languages (4)
Github contributions (5)
paysdoc/js-mutation-testing
May 2015 - Apr 2016
Contributions:64 commits, 1 PR, 47 pushes in 10 months
testingjavascriptmutationmutation-test
geniisystems/slata-angular
May 2021 - May 2022
Contributions:5 pushes, 1 branch, 1 tag in 1 year
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