Darren Nguyen - Backend Developer

Darren Nguyen

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Darren Nguyen

4.8

Age

Gender

Male

Address

Ho Chi Minh, Vietnam

Main expertise

Blockchain Node.js TypeScript Rust Golang NoSQL Docker DevOps AWS Ethereum Solidity Web3.js

Introduction

Darren Nguyen is a skilled Blockchain Developer with a strong foundation in Node.js, Golang, and TypeScript. He has experience working with NoSQL databases such as MongoDB and levelDB, and is also familiar with SQL databases like MySQL and PostgreSQL. Darren is adept in Linux system administration and excels in Windows development environments. He is proficient in using Visual Studio Code for development and is well-versed in DevOps practices and tools like Docker, AWS, and GCP. Additionally, Darren possesses strong presentation and teamwork skills, making him a valuable asset to any project.

Project list

Infinito Wallet

Infinito Wallet is a multi-cryptocurrency wallet that allows users to manage and track multiple coins, similar to how Etherscan operates for Ethereum. The project involves using Go-Ethereum for blockchain interactions and developing a RESTful API for backend operations. It also utilizes the Web3.js library to interact with Ethereum smart contracts and Solidity for writing those smart contracts. The Go-Gin framework is used to build APIs with the Go language.

Research and implement the Ethereum Virtual Machine (EVM). Modify the Go-Ethereum source code to track transaction histories. Develop RESTful APIs and backend systems for sending and receiving transactions. Implement transaction histories for multiple cryptocurrencies. Utilize the Web3.js library to initiate transactions and interact with smart contracts on the Ethereum blockchain. Write smart contracts using Solidity. Develop APIs using the Go-Gin framework and the Go programming language.

Technologies: go-ethereum, Web3.js, Solidity, Golang, RESTful API

Vexere Website and Mobile Application

Developed and maintained the Vexere website and mobile application, including backend services and API integrations.

Build and manage RESTful APIs for both website and mobile applications. Utilized Node.js frameworks, including Express and Sails. Implemented and maintained SQL and NoSQL databases. Integrated Kafka for handling notifications and event-driven processes. Developed unit tests and Docker files for streamlined development environments.

Technologies: Nodejs, express, sails, SQL, NoSQL, Kafka, Docker

Liquid Exchange Platform Development

A project focused on developing a comprehensive liquid exchange platform, which includes funding mechanisms, secure transaction processes, blockchain development, and toolkit creation for contract development.

Create crypto funding solutions for users. Create and manage withdrawal transactions from the exchange wallet to user wallets. Build a blockchain platform (Layer 1) called the 'Liquid Chain'. Develop a Contract Development Toolkit.

Technologies: c, c++, rust, web assembly

DeFi Blockchain Data Tools

This project involved building and indexing blockchain data specifically tailored for DeFi tools. It included the crawling of transaction data and events from various blockchain networks such as Ethereum, BNB Chain, Polygon, and Avalanche (Avax). The initiative featured the development of smart contracts using Solidity to interact with other smart contracts and a comprehensive system for managing blockchain nodes. Additionally, a load balancer was implemented to enhance the success rate of node requests.

Crawl transactions data and events from blockchain networks: Ethereum, BNB Chain, Polygon, and Avax. Index data from external sources into our database. Develop smart contracts using Solidity to retrieve data from other smart contracts. Manage the blockchain nodes system. Implement a load balancer to improve the success rate of node requests.

Technologies: Ethereum, BNB Chain, Polygon, Avax, Solidity, web3

Project list

Education

Expertise