George Marrows

Senior Software Developer & Team Lead at Capgemini

Brussels, Belgium
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Summary

👤
Senior
🎓
Top School
George Marrows is a senior software developer and team lead with 12+ years of experience building reliable full-stack systems, from JVM-based backend platforms to modern React frontends and cloud-native deployments on GCP and AWS. He combines hands-on coding—preferring to return to development—with architecture and people leadership, having led migrations to cloud, Java 8→17 upgrades, and cross-functional product teams. As former CTO at Echo Mobile he improved platform stability, introduced design-led development, and delivered data-focused customer features while remaining deeply involved in testing and CI practices. At GE he drove a major technology modernization of a commercial GIS product, gaining extensive experience in architecture, Scrum practices, and continuous deployment. He contributes to open-source QA for the Pony language, reflecting a practical interest in language-level correctness and test automation. Based in Brussels and Cambridge-educated in Computer Science and Mathematics, he thrives on turning ambiguous problems into maintainable production systems.
code12 years of coding experience
job14 years of employment as a software developer
bookDiploma, Computer Science, Diploma, Computer Science at University of Cambridge
languagesFrench, Japanese
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Github Skills (6)

unit-testing10
programming-language10
pony10
ponylang10
testing10
actor-model9

Programming languages (11)

TypeScriptJuliaJavaCVueJavaScriptHaskellHTML

Github contributions (5)

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ponylang/ponyc

Mar 2016 - Jun 2017

Pony is an open-source, actor-model, capabilities-secure, high performance programming language
Role in this project:
userQA Engineer / Test Automation Engineer
Contributions:10 commits, 8 PRs, 29 comments in 1 year 3 months
Contributions summary:George's contributions primarily involve writing and modifying tests for the Pony programming language. Their work focuses on literal inference, including testing various scenarios such as generics, tuples, and different numeric types. The user's commits add, modify, and remove tests, ensuring the correct behavior of the language's type system concerning literal values.
securehorseponyponycpony-source
georgemarrows/julia

Apr 2017 - Mar 2022

Contributions:8 pushes, 2 branches in 5 years
julia-languageapproachtechnical-computingcomputingjulia
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George Marrows - Senior Software Developer & Team Lead at Capgemini