Hieu Vo portrait

Senior Mobile Engineer

Hieu Vo

8 years of experience in React Native and cross-platform development (iOS & Android), with proven delivery in large-scale products including MoMo and Employment Hero.

Ho Chi Minh City, Vietnam

Phone: 0969 822 973

Email: [email protected]

LinkedIn: linkedin.com/in/hieuvo96

Summary

  • 8 years of experience in mobile app development with React Native and native development.
  • Strong understanding of JavaScript fundamentals, React Native architecture, and app lifecycles.
  • Hands-on with Redux, Zustand, React Query, React Navigation, Reanimated, Gesture Handler, MMKV.
  • Experienced in publishing apps to Google Play and App Store.
  • Strong problem-solving and system design skills.

Technical Skills

Languages

JavaScript, TypeScript, Kotlin, Java, Objective-C, Dart, Python

Frameworks & Platforms

React Native, React, Jetpack Compose, Kotlin Multiplatform, Flutter

Mobile Expertise

Native Modules, App Lifecycle, CodePush, Expo

State & Data

Redux, Zustand, React Query, MMKV

Tools & Testing

Detox, Jest, Sentry, Firebase, GitHub Actions

Backend

FastAPI, Redis, Celery

Professional Experience

Aboutmeeting

Jan 2025 - Present

Mobile Full Stack Freelancer (Dating app startup)

  • Owned and maintained both mobile and backend systems (Flutter, FastAPI).
  • Designed real-time chat using WebSocket, Celery, and Redis from scratch.
  • Integrated in-app purchases and subscriptions with promotional offers.

Employment Hero

Sep 2024 - Present

Mobile Developer - Platform Team

  • Re-implemented internal CodePush solution, reducing costs by 33% vs Expo Updates.
  • Adopted Expo development builds, reducing onboarding time to under 10 minutes.
  • Contributed pre-review workflow with Expo Updates to shorten feature review cycles.
  • Built a VSCode code inspector extension for direct source navigation from simulator/emulator.
  • Led complex native issue resolution: RN upgrades, Android edge-to-edge, CI/Xcode issues, crash fixes.

M_Service JSC (MoMo)

Mar 2022 - Sep 2024

Mobile Developer - Platform Team

  • Contributed to a scalable mini-app container system for millions of users.
  • Improved mini-app loading performance, reducing latency by 18%.
  • Developed shared native modules (JSI, JNI, Compose Multiplatform): MMKV, View Shot, face detect camera view.
  • Customized Sentry routing to isolate errors by mini-app team.
  • Implemented C++/JNI-based security module for sensitive data encryption.
  • Built on-device ML models with TensorFlow Lite to predict user behavior.

Vietnovel Corp

Jan 2018 - Jan 2022

Fullstack Mobile Developer - Reading and Writing Novel App

  • Owned and maintained two mobile applications across mobile (React Native) and backend (Django).
  • Implemented offline reading, social/JWT auth, push notifications, and in-app purchases.

Education

Bachelor of Engineering - Information Technology

University of Information Technology (UIT), 2019 | GPA: 7.6