Peter Leibiger
Chief Technology Officer at FIO
Leipzig, Saxony, Germany
Summary
🤩
Rockstar🎓
Top SchoolPeter Leibiger is a seasoned technology leader and entrepreneur from Leipzig with over a decade of hands-on software and executive experience, currently serving as Chief Technology Officer at FIO while also leading source.kitchen GmbH. He began his career building software at DATA-team and later founded and scaled CodeCraft GmbH, blending deep technical skills with business leadership. A pragmatic full-stack engineer, Peter contributes to notable Dart and Flutter open-source projects—improving HTTP client behavior in dio, enriching Sentry SDK integrations, and hardening SQLite migrations in Drift—demonstrating attention to reliability and observability. His work often focuses on edge cases and data integrity (e.g., nuanced query parameter encoding and migration index handling), reflecting a bias toward robust, production-ready solutions. Trained in computer science at the University of Cooperative Education Leipzig, he bridges system design, product needs, and developer experience to ship dependable software. Colleagues know him for combining entrepreneurial grit with a developer’s meticulousness, especially in cross-cutting infrastructure and SDK tooling.
11 years of coding experience
18 years of employment as a software developer
Glückauf-Gymnasium DippoldiswaldeDipl.-Inf. (BA) Computer Science, Dipl.-Inf. (BA) Computer Science at University of Cooperative Education Leipzig
English, German
Stackoverflow
7,387reputation
1.0mreached
134answers
4questions
flutter
top-5%
dart
top-5%
material-design
top-5%
angular-material
top-1%
javascript
top-5%
angularjs
top-5%
Github Skills (31)
database-migrations10
sentry10
sqlite10
flutter-apps10
testing10
http10
sdk10
persistence10
angular-material10
transformer10
crash-reports10
logging10
database-migration10
flutter-game10
dart10
Programming languages (18)
Github contributions (5)
cfug/dio
Mar 2021 - Feb 2022
A powerful HTTP client for Dart and Flutter, which supports global settings, Interceptors, FormData, aborting and canceling a request, files uploading and downloading, requests timeout, custom adapters, etc.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 179 reviews, 59 commits in 11 months
Contributions summary:Peter primarily focused on enhancing the Dio HTTP client library's features related to query parameters and request/response handling. Their contributions include implementing support for different list formats in query parameters, adding a `MultiParam` class for flexible collection data formatting, and refining the `urlEncodeMap` function. They also introduced new test cases to validate the implemented functionalities.
downloadinghttp-headerhttp-clientinterceptorsdart
getsentry/sentry-dart
Dec 2020 - Jul 2022
Sentry SDK for Dart and Flutter
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:78 reviews, 7 commits, 12 PRs in 1 year 7 months
Contributions summary:Peter's contributions focused on enhancing the Sentry SDK for Dart and Flutter. They implemented logging improvements, including logging errors captured in integrations. The user added Dart context information to events, enriched Flutter context data, and fixed an SDK reporting issue. Furthermore, they added request information to the `DioEventProcessor` within the `dio` package.
sentrysentry-sdkdartsdkflutter
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.