Justin Viet - Blockchain Developer

Justin Viet

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Justin Viet

Age

Gender

Male

Address

Hanoi, Vietnam

Main expertise

Blockchain Node.js Vue.js React.js Web3.js Solidity AWS DevOps Back-end Front-end Full-stack API

Introduction

Justin Viet is an experienced Blockchain Developer with over four years of expertise in designing and building blockchain applications. He is proficient in Solidity for smart contract development and Web3.js for interacting with blockchain networks. Justin is skilled in front-end development using Vue.js and React.js and has experience in back-end development with Node.js and PHP. He has a strong understanding of cloud infrastructure with AWS and is familiar with DevOps practices and tools.

Project list

SOLARR DApp - Vietnam

SOLARR is a decentralized peer-to-peer (P2P) NFT liquidity platform that provides instant credit to NFT owners and rewards suppliers for offering liquidity.

Design the system from wireframe, backend, frontend, and Blockchain system. Make development plans for the entire team (20 members). Design and implement the backend system using Node.js. Support the API development for the frontend team using React.js (Next.js). Develop smart contracts in Solidity for the Ethereum blockchain.

Technologies: Nodejs, Reactjs, Solidity, ETH

Widiland DeFi Game and NFT Marketplace - Vietnam

Widiland is an NFT game on the Binance Smart Chain (BSC). It includes an NFT marketplace and a crypto system enabling players to trade NFT items within the game.

Make a development plan for the entire team (40 members). Design and implement the backend system using Node.js (Express.js) and Web 3.0. Support the frontend team with APIs, written in React.js (Next.js). Write smart contracts using Solidity and Solana. Assist the frontend team in connecting Metamask and Binance wallets to the blockchain and smart contracts. Synchronize data from the blockchain to the game server. Design DeFi functions such as staking and liquid farming systems.

Technologies: Nodejs, Expressjs, Web3.0, Reactjs, Solidity, Solana, Binance, Metamask

Casino Blockchain Integration System - Vietnam

Development of a Blockchain and Live Casino Integration System.

Design Blockchain system: Dapp, Database, API. Design and implement backend system using Node.js and Golang. Develop frontend using ReactJS. Create crypto wallet and enable token transfer. Synchronize data between blockchain and game server.

Technologies: Nodejs, Golang, Reactjs

Automated Car Parking System - Japan

A leading car parking system in Japan, offering modernized solutions and a seamless user experience.

Convert the old system from Python (Django) to Node.js and Vue.js (Nuxt.js). Use Next.js (React.js) for the frontend system. Design a microservice architecture for the parking system. Develop and optimize the database for the system.

Technologies: Python, Django, Nodejs, Vuejs, Nuxtjs, Reactjs

Divination App - Japan

An iOS application focused on divination, providing insights into money luck, love, and career fortune.

Make development plans and assign tasks to team members. Integrate app screens and navigation. Integrate push notifications and in-app purchase services. Integrate animations. Deploy the app to the Apple Store. Maintain the app and fix bugs.

Technologies: Swift, Xcode

ERS24 Real Estate Management System - Japan

This is a comprehensive management system designed for handling tenant and staff information, as well as addressing issues reported by tenants in real estate companies.

Make system design, create database ER diagram, sequence diagram, Class design document. Program in both backend and frontend, perform unit test and integration test. Develop CI/CD system using Jenkins. Maintain and fix bugs.

Technologies: Scala, Play Framework, Nodejs, VueJs, HTML5, Shell, Mysql, Centos, Chef, Vagrant

Thanksgift API & Mobile App - Japan

Following the successful launch of the Thanksgift web system, which attracted 2 million users, we designed an API and a hybrid mobile app compatible with both iOS and Android platforms.

Design API, create Database ER diagram, sequence diagram, and Class design document. Implement API and push notification service in both API and mobile app. Develop mobile app using Ionic framework. Build and release the app to both Apple App Store and Google Play Store. Maintain and fix bugs.

Technologies: PHP, CakePHP Framework, Shell, Mysql, Centos, Chef, Vagrant, Ionic Framework, Javascript, Xcode tool

Thanksgift Social Network System - Japan

A company social network where users can create new posts, react to posts, and send 'thanks' coins to others. At the year-end party, the accumulated coins can be exchanged for Amazon gift cards.

Design new functionalities for the system, including making Database ER diagrams, sequence diagrams, and class design documents. Program, create unit tests, and conduct integration tests. Maintain the system and fix bugs.

Technologies: PHP, CakePHP Framework, Jquery, HTML5, Shell, Mysql, Centos, Chef, Vagrant

HutShopping E-Commerce Site - Japan

An e-commerce system designed for Chinese customers interested in purchasing Japanese products. It supports drop shipping for Chinese entrepreneurs residing in Japan.

Make development plan and assign tasks for team members. Design the system, including creating database ER diagrams, sequence diagrams, and class design documentation. Develop both the backend using PHP and the frontend using ReactJS; perform unit testing and integration testing. Set up a CI/CD system using Jenkins. Maintain the system and fix any bugs that arise.

Technologies: PHP, CsCart Framework, Nodejs, Shell, HTML5, Jquery, CentOs, Vagrant, Chef

Project list

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