Linnie Quan - Backend Developer

Linnie Quan

4.9

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Linnie Quan

4.9

Gender

Male

Address

Hanoi, Vietnam

Language

English - Advanced

Main expertise

Blockchain Solidity Node.js Golang TypeScript MySQL PostgreSQL MongoDB Web3.js REST API Ethereum Ethereum Smart Contract

Introduction

Linnie Quan is an experienced Blockchain Developer with a solid foundation in Solidity for smart contract development. Linnie is skilled in backend development, utilizing Node.js, Golang, and TypeScript. Additionally, Linnie is proficient in various database technologies, including MySQL, PostgreSQL, MongoDB, and LevelDB.

Project list

Infinito Wallet Project

2017 - 2018

A multi-coin digital wallet.

Research EVM of Ethereum and modify Go-Ethereum source code to track transaction history, similar to etherscan.io. Build RESTful API and back-end systems for sending, receiving, and displaying the transaction history of multiple cryptocurrencies. Utilize the Web3.js library to create transactions and interact with smart contracts on the Ethereum blockchain. Develop smart contracts using Solidity.

Technologies: Golang, Node JS, Solidity, Web3js, EVM, ETH, go-ethereum, RESTful API, etherscan.io, smart contract

VeXeRe

2018 - 2019

Developed RESTful APIs for both the VeXeRe website and mobile application.

Build and handle RESTful APIs for the website VeXeRe.com and the mobile app VeXeRe. Use Express and Sails frameworks in Node.js. Work with both SQL and NoSQL databases. Implement Kafka for notifications and events. Write unit tests and Docker files for development.

Technologies: RESTFUL API, Nodejs, Express, Sails, SQL, No.SQL, Kafka, Docker

Liquid Exchange and Blockchain Development

2019 - 2022

A project focused on developing a comprehensive crypto exchange platform and associated blockchain solutions.

Build crypto wallet support for Liquid Exchange with support for more than 100 coins. Create crypto funding infrastructure for users. Develop systems for withdrawal transactions from exchange wallets to user wallets. Build the Liquid Chain blockchain platform, available at https://github.com/ProjectLiquidChain. Build and develop smart contracts. Utilize the toolkit available at https://github.com/ProjectLiquidChain/liquid-chain-sdk for compiling smart contract code written in C, C++, and Rust into WebAssembly, to be executed on the Liquid Chain VM.

Technologies: C, C++, Rust, Web assembly, liquid chain

KEEAI Blockchain Project

2022 - 2023

A comprehensive blockchain development project involving the creation of a new blockchain and ensuring compatibility with existing Ethereum structures.

Build the blockchain from an open-source framework, from inception to a functional system. Develop a cross-chain bridge for the new blockchain. Implement a virtual machine compatible with the Ethereum Virtual Machine (EVM).

Technologies: Open-source framework, crosschain bridge, EVM compatible

Project list

Education

Expertise