I’m a Senior Mobile Engineer from Hanoi, Vietnam 🇻🇳

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About Me

Highly proficient Senior Mobile Engineer with 4+ years of experience specializing in real-time data synchronization, secure architectures, and complex system integrations. Proven track record of leading the entire feature lifecycle—from technical research and solution design to automated CI/CD implementation and production deployment. Expert in bridging hardware-software protocols and architecting intelligent AI orchestrators using Vector databases. Highly adept at leveraging AI-powered workflows to optimize engineering velocity and deliver high-performance, crash-free enterprise applications.

Technical Skills

Skills

Work Experience

Multi Foundation

June 2025 - Apr 2026

Senior Mobile Engineer / Team Lead (Flutter)

Owned the end-to-end feature lifecycle and Agile processes, from researching technical solutions and defining architectures to task estimation, ticketing, and UI/UX collaboration. Enforced strict code quality through comprehensive unit testing, black-box testing, and rigorous code reviews prior to QA handovers.
Architected advanced AI integrations and custom backend services, collaborating with the AI team to develop a custom Python-based mautrix bridge connecting Matrix with OpenRouter. Engineered an intelligent AI orchestrator for dynamic LLM routing and implemented vector-based chat summarization to optimize user queries.
Partnered with the automation team to establish CI/CD workflows, defining the system logic to integrate GitHub with Discord via n8n for a semi-opensource community. Guided the technical requirements for automated real-time ticket tracking, role-based access control, and a token-based contributor reward system.
Served as the core technical authority and mentor, leading the technical onboarding process for new members, resolving complex code-level queries, and ensuring architectural consistency across the Flutter application.
Ensured high-performance and a crash-free mobile experience by prototyping solutions on test servers prior to deployment and integrating Sentry for advanced error-tracking and production monitoring.
Engineered deep native integrations for iOS (Swift) and Android (Kotlin/Java) to build seamless real-time calling features. Forked and heavily customized existing CallKit libraries to implement Android 14 CallStyle notifications, custom incoming call UI layouts, speakerphone audio routing, and quick-reply bottom sheets.

Base.vn

Aug 2024 - Oct 2025

Software Engineer / Product Owner (React Native)

Architected fault-tolerant offline synchronization for Base Checkin Client, implementing dynamic data chunking algorithms (adjusting payload sizes based on device capacity) and state-recovery mechanisms to ensure zero data loss during network outages.
Engineered custom hardware integrations, reverse-engineering undocumented hex data from physical devices and designing customized sync architectures (TCP/UDP, Webhooks, API listeners) in direct consultation with enterprise IT departments.
Optimized memory and rendering performance for the Base Mini HRM super-app integration by migrating to LegendList and implementing a hybrid state management architecture (Zustand, LegendState, Redux) to handle massive enterprise datasets seamlessly.

Linagora Vietnam

Jul 2023 - Aug 2024

Flutter Developer

Engineered a custom mathematical rendering engine for the Twake open-source chat suite to calculate complex UI layouts and floating timestamps dynamically, overcoming the limitations of existing Flutter packages.
Resolved critical data-structure bugs in Tmail by implementing recursive decision tree algorithms to manage nested folder deletions without corrupting parent directories.
Boosted application startup and offline performance by architecting efficient local caching systems using Hive, Secure Storage, and lazy-loading via GetIt.
Ensured robust code quality and system reliability by implementing comprehensive unit testing (utilizing Mockito) for critical business logic, effectively minimizing regression bugs in production.
Engineered a custom mathematical rendering engine for the Twake open-source chat suite across both Mobile and Flutter Web environments. Calculated complex UI layouts and floating timestamps dynamically, overcoming the limitations of existing cross-platform packages.

MDC Software ******

Mar 2022 - Jun 2023

React Native Developer

Authored and published an open-source React Native animation library (react-native-floating action-circle-button), which was actively utilized in the ICORP E-Contract application to enhance UI/UX.
Integrated cutting-edge native eKYC modules for the Saymee telecommunications application, collaborating with external technical teams to ensure secure user identity verification.

Projects

Featured Projects (1)