Guillaume R
Tech Lead Billing Automation
Nice, Provence-Alpes-Côte d'Azur, France
Summary
👤
Senior🎓
Top SchoolGuillaume R is a seasoned tech lead specializing in billing and pricing systems with 12 years of experience building revenue-critical backends and scalable cloud platforms from Nice, France. He currently leads Billing Automation at Bump, having designed subscription and integration flows between Salesforce and Zuora, and previously implemented OpenFGA-based authorization for EV charging. Comfortable across .NET, Go, Kafka, Redis and PostgreSQL, he pairs domain-driven and event-driven architectures with pragmatic platform work on GCP, Kubernetes and observability tooling. Earlier roles span fullstack and mobile engineering—he contributed to a popular NativeScript Firebase plugin and built a Flutter contactless payments app—showing a hands-on ability to ship across mobile and backend boundaries. Colleagues rely on him for lifting legacy systems into modular, maintainable architectures while keeping product-led revenue paths intact. He blends strong execution on billing pipelines with a pragmatic emphasis on reliability and operational maturity.
11 years of coding experience
15 years of employment as a software developer
Licence Professionelle en Alternance Systèmes Informatiques et Logiciels, Licence Professionelle en Alternance Systèmes Informatiques et Logiciels at Université Côte d'Azur
French, English
Stackoverflow
844reputation
68kreached
47answers
14questions
nativescript
top-5%
Github Skills (14)
nativescript10
android10
firebase10
user-authentication9
authentication9
gulp6
visual-studio-code6
asp-net-mvc6
nodejs6
typescript6
javascript6
vscode-tasks6
ecmascript6
facebook6
Programming languages (3)
Github contributions (5)
EddyVerbruggen/nativescript-plugin-firebase
Apr 2016 - Aug 2016
:fire: NativeScript plugin for Firebase
Role in this project:
Mobile Developer (Android/iOS)
Mobile Developer (Android/iOS)Contributions:5 commits, 3 PRs, 2 comments in 3 months
Contributions summary:Guillaume primarily contributed to the NativeScript Firebase plugin, focusing on implementing and modifying features related to Firebase authentication and push notifications. They added the `changePassword` feature, merged remote changes, and fixed an issue related to the `onAuthStateChanged` event within the plugin. Additionally, they corrected an issue within the Android implementation, returning a string instead of an android.net.Uri for the `getDownloadUrl` method, which demonstrates a focus on mobile-specific implementation details.
googleinvitesiosstoragetensorflow
guillaume-roy/holidaysmode
Jun 2014 - Nov 2017
Contributions:9 commits, 5 pushes, 1 comment in 3 years 5 months
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