Hadrien Lejard
VP Of Engineering at Lefty
Paris, Ile-de-France
Summary
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Rockstar🎓
Top SchoolHadrien Lejard is a VP of Engineering with 11 years of experience building front-end and mobile experiences, specializing in Dart, Angular and Flutter. Rising through engineering ranks at Lefty from software engineer to lead and now VP, he blends hands-on development with technical leadership at an influencer-marketing startup. He is an active open-source contributor—improving projects like the Flutter WebView plugin and Chopper HTTP client generator—often focusing on Android integrations, serialization, and CI tooling. Comfortable across mobile, web and DevOps, he also co-founded a startup and has academic experience in both France and California, reflecting a blend of entrepreneurial initiative and international technical training.
11 years of coding experience
9 years of employment as a software developer
EpitechBaccalauréat Scientifique Spécialité Mathématiques, Baccalauréat Scientifique Spécialité Mathématiques at Lycée Fremont Lisieux (Calvados)Computer Science, Computer Science at California State University San Marcos
English, French
Stackoverflow
5,764reputation
501kreached
75answers
0questions
flutter
top-5%
debugging
top-5%
byte
top-5%
dart
top-1%
image
top-5%
unix-timestamp
top-5%
Github Skills (27)
json10
webview10
flutter-apps10
data-serialization10
travis-ci10
cicd10
java10
serialization10
javas10
android10
android-webview10
flutter-game10
dart10
flutter10
image9
Programming languages (5)
Github contributions (5)
lejard-h/chopper
Apr 2018 - May 2021
Chopper is an http client generator using source_gen and inspired from Retrofit.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:15 releases, 44 reviews, 254 commits in 3 years 1 month
Contributions summary:Hadrien focused on implementing and integrating functionalities related to data serialization and deserialization within the project, particularly with the integration of the jaguar_serializer library. They added example code, including a full example with a main application demonstrating the use of converters. The user updated the SDK and made minor fixes to ensure the correct import and usage of new features.
retrofitsource-genhttp-clientdarthttpclient
lejard-h/google_maps_webservice
Sep 2017 - May 2021
Role in this project:DevOps Engineer
DevOps EngineerContributions:2 reviews, 119 commits, 38 PRs in 3 years 8 months
Contributions summary:Hadrien primarily focused on setting up and configuring the testing and CI/CD infrastructure for the project. They implemented a Travis CI configuration script and integrated it with the project. The changes included the addition of browser tests. Furthermore, the user also modified the build and test process.
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