My Contributions
- Created more than 80% of features for the web application.
- Expanded the app with a new module for e-learning with books, video lessons, quizzes, and exams for theory book providers, hence earning 3% revenue per item sold.
- Improved test coverage rates from 60% to 90% in two years, allowing to build and release the apps on Google Play and App Store more frequently and with 60% less bugs.
Tech stack
Languages: Javascript, Java.
Frontend: React, React Hooks, React Native, Native Base.
Testing: React Test Renderer, Snapshot Testing.
Build Tools: Gradle, Cocoapods, Fastlane.
Platforms and OS: Android, iOS, MacOS, Linux.
CI/CD: CircleCI, Google Play, AppStore.
Observability and Monitoring: Rollbar.
Authentication: Firebase.