Fintech Mobile App – United States
Middle Android Developer, 08/2022 - Present
Project description
- Developed a financial app for managing budgets, tracking expenses, and providing financial insights with a secure and intuitive interface
Responsibilities
- Implemented budget tracking and expense categorization features with dynamic charts.
- Integrated RESTful APIs for secure user authentication and data synchronization.
- Optimized app startup time by 20% through efficient data loading strategies.
- Collaborated with backend developers to define API contracts and handle edge cases.
- Wrote comprehensive unit tests using JUnit and Mockito for critical features.
- Participated in bi-weekly sprints, providing input on feature prioritization.
Technologies
- Kotlin, Android SDK, Jetpack Compose, Retrofit, Dagger, Room, JUnit, Mockito, Firebase
Social Networking App - United Kingdom
Middle Android Developer, 02/2021 - 07/2022
Project description
- Built a social networking app for connecting users through posts, chats, and multimedia sharing.
Responsibilities
- Developed real-time chat and media sharing features using Firebase and WebSocket.
- Implemented push notifications to enhance user engagement.
- Refactored legacy code to adopt MVVM architecture, improving maintainability.
- Worked with designers to align UI with Material Design standards.
- Conducted UI testing with Espresso to ensure cross-device compatibility.
- Assisted in setting up GitLab CI for automated testing and deployment.
Technologies
- Kotlin, Java, Android SDK, Retrofit, Firebase, WebSocket, JUnit, Espresso
Retail Mobile App - Singapore
Android Developer, 05/2019 - 01/2021
Project description
- Created a retail app for browsing products, managing loyalty programs, and processing in-store payments.
Responsibilities
- Built product catalog and loyalty points tracking features.
- Integrated APIs for in-store payment processing and user profiles.
- Ensured UI consistency with Material Design guidelines.
- Wrote unit tests to validate core functionalities.
Technologies
- Java, Android SDK, Retrofit, Firebase, JUnit
Food Delivery App - Vietnam
Android Developer, 09/2018 - 04/2019
Project description
- Developed a food delivery app for ordering meals and tracking deliveries in real-time.
Responsibilities
- Implemented order placement and real-time tracking UI.
- Integrated APIs for restaurant data and delivery status.
- Optimized app for low-end devices.
Technologies
- Java, Android SDK, Retrofit, SQLite, JUnit.
Food Delivery App - Vietnam
Android Developer, 05/2019 - 01/2021
Project description
- Created a retail app for browsing products, managing loyalty programs, and processing in-store payments.
Responsibilities
- Built product catalog and loyalty points tracking features.
- Integrated APIs for in-store payment processing and user profiles.
- Ensured UI consistency with Material Design guidelines.
- Wrote unit tests to validate core functionalities.
Technologies
- Java, Android SDK, Retrofit, Firebase, JUnit
