• Developed VPN Android app.• Developed network security core SDK.

• Implemented features and fixed bugs for chat applications using Java, Kotlin.• Supported backend to deploy services with Docker.• Worked remotely with team (Taiwan - Cambodia).

• Built social media app with Firebase (Firestore, Storage, Authentication).• Worked remotely with coworkers (Taipei city - Kaohsiung city).

• Improved my English through International Experience of Canada

• Communicated with project managers to develop product features, plans and processes.• Reconstructed existing projects with dependency injection (KOIN) to let code reusable.• Upgraded old projects' Android support library to AndroidX.

• Migrated existing Java code to Kotlin to increase readability.• Built clean architecture with MVVM using Android Architecture Components.• Rewrote printed strategies of printer using design patterns to increase flexibility.• Communicated with customers to develop new features.

• Brainstormed with UI/UX designers through use case and class diagram.• Wrote clean, efficient , maintainable code using Design Pattern.• Implemented RESTful API with OAuth2 and Neo4J using Spring Boot.• Deployed the RESTful API on Google Cloud Platform using Docker.• Studied reactive programming (RxJava) and shared them with coworkers.

• Communicated with database through JSON using RESTful API.• Read and wrote data via QR code using Zxing Library.

• In charge of computer maintenance, managing computer system settings, games installation and updates.