Hello, I'm

Ha Duy Hung

Front-end Developer

A passionate Frontend Developer with 3.5+ years of experience crafting responsive, performant, and user-friendly digital products using React, Next.js, and React Native.

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About Me

Get to know me better

I am a professional frontend developer with 3.5+ years of experience in building web and mobile applications. With strong creative and analytical thinking, attention to detail, and a teamwork-driven mindset. I continuously improve my workflow by making use of AI-assisted development tools.

I specialize in building modern web applications with React, Next.js, and TypeScript, while also having hands-on experience with mobile development using React Native and Kotlin. I am passionate about leveraging AI-assisted tools to boost productivity and deliver high-quality code.

Experience: 3.5+ Years

Location: Ha Noi, Vietnam

Education: Electric Power University

Born: 05-10-2000

Skills & Technologies

Tools and technologies I work with

Frontend Core

ReactJS
Next.js
TypeScript
JavaScript
HTML5
CSS/SCSS

State Management

Zustand
Redux Toolkit
Redux Saga
React Query

UI Libraries & Styling

Tailwind CSS
Shadcn/ui
HeroUI
Ant Design
Styled Components
Responsive Design

Mobile & Cross-platform

React Native
Kotlin Jetpack
Android

Tools & Others

Git
Figma
RESTful API
Angular
Node.js
CI/CD

AI-Assisted Development

Claude Code
MCP
OpenAPI Generator

Experience

My professional journey

Apr 2025 - Present

Front-end Developer

Katech

Working on Katech landing page and Let's Goo - a trip planning & travel service booking app.

Maintain and optimize the Katech landing page, fix UI/UX issues
Develop core mobile features for Let's Goo app including trip creation, itinerary management, and service booking modules
Utilize MCP for AI-powered Figma design analysis and Claude Code for coding assistance
Work with OpenAPI YAML specifications and OpenAPI Generator to automate API client creation

Next.js 14
Kotlin
Java
MCP
Claude Code

Jul 2024 - Mar 2025

Front-end & Mobile Developer

TechHub

Built two major products: LearnHub (e-learning platform) and Giftly (e-commerce website).

Built responsive and user-friendly interfaces with optimized performance
Implemented interactive learning features: progress tracking, course navigation
Built e-commerce features: search, filtering, cart, checkout flow
Collaborated with backend APIs and optimized frontend performance for better UX

Next.js 14
NestJS
React Query
Tailwind CSS

Jan 2024 - Jun 2024

Front-end Developer

Viettel Cyber Security

Onsite developer for VCS-SOAR (Security Orchestration, Automation and Response) platform.

Built project interfaces and functionality based on Figma design
Coordinated with Back-end (API) and BA teams
Wrote unit tests to cover code and ensured code quality with Checkmarx, SonarQube, and SCA

Angular 11
Python
Golang
SonarQube

Dec 2021 - Oct 2023

Mobile Developer

React Plus JSC

Worked on a Nocode platform that enables app development through drag-and-drop components, serving Japanese customers.

Developed new components and features for the Nocode platform
Worked in a team of up to 20 members at peak
Built features using ReactJS for frontend and React Native for mobile

ReactJS
React Native
Node.js
CircleCI
PostgreSQL

Featured Projects

Highlights from my professional work

Mobile App

Let's Goo

A trip planning application that allows users to create and manage travel itineraries, book services such as accommodation, car rental, bus tickets, flights, attractions, and restaurants within each trip, with social features for sharing travel journeys.

Trip creation & itinerary management
Multi-service booking (hotels, flights, car rental, buses)
Social features for sharing travel journeys
AI-powered Figma design analysis with MCP

KotlinNext.jsJavaMCPOpenAPI Generator

Web App

LearnHub

An online learning platform that allows users to access and study courses anytime and anywhere, supports video lectures, quizzes, and learning progress tracking with Admin/Instructor/Student roles.

Video lectures & quiz system
Learning progress tracking
Multi-role management (Admin/Instructor/Student)
Responsive & performance optimized

Next.js 14NestJSTailwind CSSReact Query

Web App

Giftly

An e-commerce platform that allows users to browse and purchase products online, supports shopping cart, payment, and order management with a comprehensive admin system.

Product search & filtering
Shopping cart & checkout flow
Order management system
Admin dashboard for products, categories & users

Next.js 14NestJSTailwind CSS

Full Stack

Nocode Platform

A platform that supports developing apps without coding by dragging and dropping available components, serving Japanese customers with a team of up to 20 members.