Led a Flutter-based e-commerce app (Android & iOS) using Dio (API), MVVM, and BLoC. Implemented offline-first capabilities for a Quick Service Restaurant app using SQLite, Hive, and Drift; integrated a PAX payment module with real-time server communication; created reusable widgets and widget tests to improve reliability.

Senior Software Engineer (Mobile) at RolesTech

July 1, 2022 - December 31, 2024

Led cross-platform app development using Flutter and React Native; modernized legacy Android codebase to Android 12 with MVVM and Work Manager; developed a location-based aggregator app using Google Maps and Places API, plus trip-planning features; architected a repair shop management system (React Native + TypeScript); implemented social sports planning features with deep linking, Firebase Cloud Messaging, and event invites.

Senior Software Engineer (Mobile) at Tosdown

November 1, 2020 - June 30, 2022

Engineered a multi-tenant POS solution supporting various business verticals; implemented complex integrations with POS hardware SDKs (Zebra, EPSON); developed configurable Flutter apps serving multiple business domains.

Software Engineer at Novature Soft

June 1, 2018 - October 31, 2020

Developed an automated parking management system using computer vision and OCR; built a real-time analytics dashboard for parking facility management; integrated third-party cameras and number-plate recognition to streamline operations.

Senior Software Engineer (Mobile) at RolusTech

July 1, 2022 - December 31, 2024

Led cross-platform app development using Flutter and React Native; modernized legacy Android codebase to Android 12 (MVVM, ViewModel); developed location-based aggregator app with Google Maps, Places API, and trip-planning features; architected a repair shop management system (React Native + TypeScript); built a social sports planning app with deep linking, FCM, and Riverpod.