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Heeyoun

PROFILE

Heeyoun

Worked on the BrewR-EPFL/BrewR repository to deliver eight new features and address key user experience challenges over two months. Developed location-based coffee shop suggestions and journey logging, integrating map services and offline persistence to enhance usability and reliability. Implemented real-time data synchronization for journeys and user profiles using Firebase and Firestore, ensuring live updates and robust offline support. Improved onboarding and authentication flows with UI/UX refinements, unified sign-in components, and branding updates. Expanded test coverage with Espresso and Mockito, while maintaining code quality through consistent formatting and refactoring in Kotlin, Java, and XML to support maintainability and future development.

Overall Statistics

Feature vs Bugs

89%Features

Repository Contributions

31Total
Bugs
1
Commits
31
Features
8
Lines of code
2,637
Activity Months2

Your Network

6 people

Work History

December 2024

19 Commits • 6 Features

Dec 1, 2024

December 2024 focused on delivering real-time data synchronization, onboarding/UI polish, branding updates, offline capabilities, and stronger test coverage, with sustained emphasis on code quality and maintainability. These initiatives increased data accuracy, improved user onboarding experience, reinforced branding consistency, and enhanced resilience in flaky network conditions, while reducing maintenance overhead.

November 2024

12 Commits • 2 Features

Nov 1, 2024

November 2024 monthly summary for BrewR (BrewR-EPFL/BrewR). Focused on delivering business value through location-based journey enhancements, offline persistence, and a stabilized startup flow. Key outcomes include map-based coffee shop suggestions integrated into location-based journey logging, offline persistence for gallery and journey addition, and stabilized app startup navigation. These changes improve user experience, data availability offline, and reliability across launches, supported by updated tests and formatting.

Activity

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Quality Metrics

Correctness86.4%
Maintainability85.8%
Architecture78.4%
Performance83.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaKotlinXML

Technical Skills

API IntegrationAndroid DevelopmentAndroid TestingCode CleanupCode FormattingData ModelingEnd-to-End TestingEspressoFirebaseFirebase AuthenticationFirebase StorageFirestoreGoogle Sign-In APIIntegration TestingJetpack Compose

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

BrewR-EPFL/BrewR

Nov 2024 Dec 2024
2 Months active

Languages Used

JavaKotlinXML

Technical Skills

API IntegrationAndroid DevelopmentCode FormattingData ModelingEnd-to-End TestingFirebase