NGO THANH CHUNG

Senior Mobile Developer | Flutter & Android

Education

Hanoi University of Science and Technology
Bachelor's Degree – Applied Mathematics and Informatics · 2015 – 2020

Professional Summary

Senior Mobile Developer with 6+ years of experience in Android (Java/Kotlin) and 4+ years specializing in Flutter cross-platform development. Proven track record in designing scalable app architectures (BLoC/Clean Architecture), integrating complex SDKs (eKYC, VNeID, Digital Signature, Encryption), and optimizing app performance.
Successfully published and maintained 5+ applications on Google Play Store and Apple App Store across Fintech, E-Government, and Utility domains.

Professional Experience

VND FINTECH., JSC — Senior Mobile Developer
Jul 2025 – Present
Flutter · Android (Java/Kotlin) · BLoC · Firebase · WebSocket · AES · RSA
  • Developed cross-platform mobile features using Flutter and BLoC for a financial services application.
  • Developed and maintained a native Android application using Java/Kotlin.
  • Implemented secure API communication using AES and RSA encryption, along with biometric authentication and eKYC.
  • Integrated Firebase Cloud Messaging and WebSocket for notifications and real-time communication.
  • Built and published mobile applications to Google Play Store.
SAVIS TECHNOLOGY GROUP — Senior Mobile Developer
Dec 2022 – Jun 2025
Flutter · Android · iOS
  • Developed enterprise-level solutions and E-Government applications.
  • Built custom Flutter plugin packages for Digital Signature SDKs.
  • Implemented secure API communication using AES and RSA encryption, and biometrics/eKYC.
  • Built and published mobile applications to Google Play Store and Apple Store.
2NF SOFTWARE CO., LTD. — Mobile Developer
2019 – Nov 2022
Native Android (Java/Kotlin) · Flutter · React Native · React.js
  • Built native Android and cross-platform applications from scratch for Japanese and domestic clients.
  • Refactored legacy codebases to MVVM / BLoC patterns, improving app stability and reducing crash rates.
  • Worked across full-stack mobile development including UI/UX implementation, API integration, and bug fixing.

Selected Projects

Digital Signature SDK & Digital Certificate Registration

Role: Developer · Tech: Flutter (BLoC), Android (Java), iOS (Swift), AES, RSA, QR, eKYC SDK
  • Developed cross-platform Flutter functionality and native Android/iOS SDK packages for digital signature and digital certificate registration.
  • Implemented secure API communication using AES and RSA encryption.
  • Integrated QR-based workflows and third-party eKYC SDK for identity verification.

GT365

Role: Developer · Tech: Android (Kotlin/Koin/MVI), FCM, WebSocket
  • Developed mobile UI and business logic using native Android.
  • Implemented Firebase Cloud Messaging and WebSocket-based features.
  • Built and published the application to Google Play Store.

iBacGiang

Role: Developer · Tech: Flutter, Android (Java), iOS (Swift), QR, FCM, Deep Linking, VNeID
  • Developed mobile UI and business logic for an E-Government application.
  • Integrated QR code, Firebase Cloud Messaging, Deep Linking, and VNeID functionality.
  • Built and published the application to Google Play Store and Apple App Store.

Task Management Application

Role: Developer · Tech: Flutter (GetX), WebSocket, Firebase Cloud Messaging
  • Developed the core mobile codebase and user, company, task, and project management features.
  • Implemented real-time communication using WebSocket and Firebase Cloud Messaging.

Other Mobile Projects

Projects: Calling & Messaging · Agricultural Information · Construction Site Management · Financial Applications · Rental Property Management · Vehicle Search & Booking · Natural Disaster Alert
Technologies: Flutter · Android · iOS · React Native · Agora · WebSocket · Firebase · MVVM · BLoC · GetX · Dagger · Retrofit · Google Maps

Other Projects

Web: Form & Booking Management · React.js · Redux Observable · Google Login · Google Calendar