Senior Mobile Developer

Viet Bui Anh

Senior Mobile Developer specializing in Flutter and React Native, with 5+ years' experience delivering production-grade, cross-platform apps. I have led teams and shipped multiple apps to the App Store and Google Play.

Cau Giay, Hanoi(+84) 836 434 701 vietba.work@gmail.com

2× Pull Request merged into Flutter source code

Top 30,000 on HackerRank, 2022

Deployed 10+ apps to Google Play & Apple App Store

02Skills

What I work with

Core

Flutter & Dart (since 2019)
React Native & JavaScript (since 2020)
Android & iOS development

Backend & Ops

Node.js & FastAPI
CI/CD
AI integration for mobile apps

Architecture

Clean Architecture
Bloc / Riverpod
TDD & SOLID

03Experience

Employment

03/2026 — Present
Mobile Lead
Kaopiz Software, HanoiNow
- Lead mobile development teams across multiple projects, with hands-on expertise in Android, iOS, and Flutter.
- Apply AI solutions to complex codebases, accelerating delivery while maintaining code quality and reliability.
- Mentor and guide team members on adopting AI tools effectively, improving individual and team productivity.
- Redesign and standardize workflows across the full lifecycle to embed AI-assisted practices, from planning to release.
09/2024 — 11/2025
Senior Flutter Developer
Addx, Singapore (Remote)
- Played a key role in architecting, developing, and delivering high-quality mobile and web applications with a focus on performance, scalability, and UX.
- Designed and delivered robust, secure, and scalable Flutter applications aligned with business and user requirements.
- Leveraged deep Flutter & Dart knowledge to build cross-platform solutions with consistent performance across mobile and web.
- Implemented clean architecture, reusable components, and optimized code for maintainability and performance.
07/2021 — 05/2024
Mobile Team Lead (Flutter & React Native)
FPT Software
- Established a consistent visual and UX theme by standardizing fonts, layouts, components, and design systems across Flutter and React Native.
- Led and mentored mobile team members, providing technical direction, code reviews, and delivery oversight.
- Defined and owned the mobile architecture and framework selection to ensure scalability and maintainability.
- Designed solutions and implemented complex features, addressing challenging technical requirements.
- Managed end-to-end mobile releases, publishing to the App Store and Google Play. Worked in two-week Agile sprints.
10/2019 — 07/2021
Mobile Developer
Cooftech
- Built and shipped cross-platform mobile applications, contributing across the full development lifecycle.
05/2019 — 10/2019
Android Teaching Assistant
TechJA
- Trained and taught students Java, OOP, and Android development.
- Managed and supported classes of 15 students.

04Projects

Selected projects

Oct 2025 — Present

Stozy AI

App Store

An AI-first audiobook and storytelling app.

Tech: Flutter · FastAPI

Built end-to-end: architecture, backend APIs, and App Store submission.
Implemented audio features and a responsive UI optimized for long-form listening.

Sep 2024 — Nov 2025

ADDX

App Store

Investment platform with rich market & portfolio visualizations.

Tech: Flutter · Bloc · Firebase

Upgraded and maintained the app to the latest Flutter SDK and Dart versions.
Designed custom investment charts using CustomPainter, Canvas, and animation controllers, complemented by fl_chart.
Built reusable UI components for dashboards, asset listings, and transaction views.
Integrated Firebase (auth, firestore, messaging, analytics) and third-party SDKs (uxcam_flutter, braze_flutter).

Jan 2024 — Jun 2024

EZRx+

App Store

A cross-platform app that lets users securely order prescription medications from overseas suppliers.

Role: Flutter Developer · Team: 8 · Tech: Flutter · Bloc · Firebase

Applied TDD architecture and principles.
Maintained high code quality with Dart Code Metrics and flutter_lints.
Wrote unit and integration tests with Mockito and reviewed team members' pull requests.

May 2022 — Feb 2023

Fatigue Management System

A workforce app that auto clocks employees in and out based on their location.

Role: Mobile Team Lead · Team: 7 · Tech: Flutter · Riverpod · Firebase

Planned and estimated the full project; designed the Clean Architecture framework.
Implemented complex UI with TweenAnimationBuilder, CustomPaint, and Flare.
Built background location tracking, Bluetooth file transfer, and Google Maps integration.
Managed state with Riverpod and Hive; scheduled local notifications with an offline mode and data-conflict handling.

2021 — Present

Copy Widget

Marketplace

A VS Code extension that lets you quickly select (highlight) a Flutter widget together with its parents — published to the Marketplace.

VS Code Extension · 10k+ installs · ★ 5.0

Authored and published a developer-tooling extension used by 10,000+ developers.
Speeds up everyday Flutter editing by selecting a widget and its enclosing parents in one action.

05Open Source

Open source & tooling

flutter/flutter · #151294Merged

Fix: Submenu anchor misaligned with child panel in web

Merged into flutter:master · 6 commits · 3 files

View pull request on GitHub →

012× pull requests merged into Flutter

021× pull request merged into Isar (a Flutter package)

032× VS Code extensions published

04Jan 2026 — Flutter × Claude Code: a tool to help developers quickly integrate Claude Code into existing codebases.

06Certifications

Certifications & awards

Mar 2025C2-level English (EF SET)

Dec 2022Platinum Employee — FPT Software

Jun 2021Top 30,000 in Problem Solving on HackerRank

07Education

Education

Posts and Telecommunications Institute of Technology

Hanoi

Information Technology

Hanoi Law University

Hanoi

Le Hong Phong High School for the Gifted

Nam Dinh

Graduated from the Information Technology specialized class.