Guillaume Lung
Senior Software Engineer at Freelance
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolGuillaume Lung is a Senior/Staff product engineer based in Berlin with over 20 years of hands-on experience building high-traffic, user-facing products and 11 years of focused industry experience. He spans full-stack systems, Android, backend architectures, and generative AI (RAG, agents, LLMs), consistently delivering end-to-end features with a product-first mindset. He has shipped offline-first mobile experiences and sync systems at SoundCloud, co-built an electric bike subscription product at Dance, and now drives Android and backend work as a freelance engineer. Comfortable operating autonomously or as the sole platform specialist, he also designs reusable design systems and testing infrastructure that accelerate teams. Notably, he combines deep mobile expertise with practical Gen-AI prototypes—such as a stylist agent proof-of-concept—bridging research ideas to production-ready components.
11 years of coding experience
11 years of employment as a software developer
EPITA: Ecole d'Ingénieurs en Informatique
Stackoverflow
11reputation
331reached
1answer
2questions
Github Skills (88)
wordpress10
kotlin-multiplatform10
apollographql10
java10
android-library10
android10
kotlin10
caching10
lifecycle10
strongly-typed10
self-contained10
redux10
robot10
native-library10
react-native-library10
Programming languages (7)
Github contributions (5)
glung/elm-architecture-android
Oct 2015 - Oct 2016
Contributions:6 commits, 1 PR, 6 pushes in 11 months
elm-architecturethe-elm-architectureelmandroidkotlin
glung/redux-java
Sep 2015 - Jul 2018
Contributions:2 releases, 48 commits, 16 PRs in 2 years 10 months
state-managementstate-containerreduxpredictable-statepredictable
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