Jean Mainguy
Site Reliability Engineer at EGYM
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolJean Mainguy is a Site Reliability Engineer and Software Team Lead based in Berlin with nine years of experience building reliable mobile CI/CD and infrastructure tooling. At EGYM he progressed from mobile iOS/Android engineering and Mobile DevOps into SRE and team leadership, bridging developer workflows with production reliability. He contributes to fastlane, a prominent open-source tool for automating iOS/Android builds, fixing Swift-based build and simulator issues that demonstrate deep mobile build-system knowledge. Comfortable across iOS, Android, DevOps and backend reliability, he focuses on making complex release pipelines robust and maintainable. His academic background spans applied and engineering computer science degrees from institutions across Europe, reflecting both practical and formal training.
9 years of coding experience
5 years of employment as a software developer
Higher National Diploma in IT, Higher National Diploma in IT at ESUPECBachelor's degree in Computer Science, Bachelor's degree in Computer Science at UCN, Professionshøjskolen University College NordjyllandMaster's degree in Computer Science, Master's degree in Computer Science at Darmstadt University of Applied SciencesEngineer's degree in IT, Engineer's degree in IT at ESAIP, École Supérieure Angevine en Informatique et Productique
English, German, French
Github Skills (9)
mobile10
xcode10
automation10
swift10
automations10
ios10
google-apps9
ruby8
android4
Programming languages (13)
Github contributions (5)
fastlane/fastlane
Dec 2018 - Jan 2021
🚀 The easiest way to automate building and releasing your iOS and Android apps
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:10 reviews, 24 commits, 24 PRs in 2 years 1 month
Contributions summary:Jean primarily contributed to the `fastlane/fastlane` project, a tool for automating iOS and Android app builds and releases. Their commits focused on fixing parsing issues, correcting boolean options, and addressing simulator launch arguments within the Swift-based components of the project, particularly within the `snapshot` and `gym` areas. They also addressed the handling of dSYM files and made improvements to the `ensure_xcode_version` action, showing a solid understanding of the iOS build process. Furthermore, they made fixes related to the simulator and the Swift based code of fastlane.
fastlaneandroid-appsappsdeploymentreact-native
jhandguy/canary-deployment
Dec 2021 - Sep 2022
Contributions:26 commits, 1 PR, 20 pushes in 9 months
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