Jerome Lacoste
Enginering Director Co-founder at DragonBox - a Kahoot! company
Oslo, Norway
Summary
🤩
RockstarJerome Lacoste is an engineering director and co-founder based in Oslo with 20 years of experience building robust developer tooling and consumer-facing learning products at DragonBox (a Kahoot! company). He blends hands-on backend and DevOps expertise with product leadership, having improved critical infrastructure in high-profile open-source projects like Jenkins and Fastlane. Jerome’s work ranges from low-level stream and IO fixes to Maven plugin refactors and App Store automation features, showing a knack for reducing fragility in complex systems. He favors pragmatic, maintainable solutions—adding targeted exceptions, modular APIs, and validation to prevent subtle runtime errors. Comfortable shipping across the stack, he pairs technical depth with an educator’s sensibility for delivering great learning experiences. An often-underappreciated strength is his ability to translate maintenance work into long-term product reliability that scales with teams and users.
20 years of coding experience
Norwegian
Stackoverflow
3,797reputation
548kreached
83answers
3questions
jenkins
top-1%
Github Skills (42)
apiconnect10
appstoreconnectapi10
ios10
appstoreconnect10
api-design10
system-design10
fastlane10
cicd10
java10
ruby10
javas10
automation10
google-apps10
maven10
mobile10
Programming languages (17)
Github contributions (5)
fastlane/fastlane
Jul 2015 - May 2022
🚀 The easiest way to automate building and releasing your iOS and Android apps
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:183 reviews, 155 commits, 184 PRs in 6 years 11 months
Contributions summary:Jerome primarily contributed to the `fastlane/fastlane` repository by implementing and improving features related to iOS app development and release automation. They refactored code related to setting app categories and adding support for subcategories. Additionally, they enhanced the codebase with features like adding company name and the ability to modify or remove app icons, trailers, screenshots.
fastlaneandroid-appsappsdeploymentreact-native
fastlane-old/deliver
Jun 2015 - Jan 2016
Upload screenshots, metadata and your app to the App Store using a single command
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:12 commits, 12 PRs, 57 comments in 6 months
Contributions summary:Jerome primarily focused on enhancing the `deliver` tool, which is used to upload app metadata and screenshots to the App Store. They implemented features such as subcategory support, improved the preview functionality, and fixed issues related to screenshots. The commits indicate a strong understanding of the tool's codebase, including metadata processing, preview generation, and user interface adjustments. Furthermore, the user demonstrated skills in HTML and web design by modifying the summary preview.
metadatascreenshotsapp-storescreenshot
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