Atsuo Koizumi

Full-stack Engineer • Frontend Developer • Nagoya, Aichi, JP

Cypress.io

MySQL

Javascript

HTML/CSS

Solidity

Express.js

Node.js

TypeScript

Tailwind CSS

Next.js

Redux

React Router

React

Available for hire fromNegotiable

Full-Time Roles

Contracts

React, MUI, Tailwind CSS Developer

Atsuo is an experienced IT professional with over 4 years of practice, specializing in front-end web development. He has extensive knowledge of JavaScript/Typescript and browser APIs, as well as significant experience with popular frameworks and libraries like React and Redux. Atsuo's deep full-stack experience includes Node.js and Express, MongoDB, and blockchain technologies like Web3 integration and smart contracts.

Projects

Green Planet Eco

I built the website from scratch with the co-founders of the ecosystem. My role included all aspects: designing the prototype, building the frontend and backend, developing the cryptocurrency for the ecosystem, as well as the integration of individual packages. What I’m thinking proudly about this project is that I solved the security problems of the ECO token to pass the audit of the Certik team and that I used a new attractive frontend theme library, Material Tailwind, a merged package of MUI (Material UI) and Tailwind CSS.See More

NEYX

A website for an algo trading project, NEYX. I built the website using React/Redux, Node.js, and Express. I used one of the most popular MUI (Material UI) themes, Minimal, to build the frontend.See More

Hinata NFT

A NFT marketplace. I took part in its development as a frontend developer in a team. What I did was convert the designs into live frontends, create reusable components for repeated elements and animations, and build infra testing frameworks using Cypress.See More

Dahliadesk

A platform to manage Algorand assets

Dice NFT

A service platform to create and sell NFTs.

Gaswizard Finance

A platform to sell cryptocurrency token.

NFT Roi

A platform to manage NFT.

Trendingo CC

A service platform to be ordered the services related with blockchain.

Work History

Software Developer

Green Planet EcoApr 2023 - Present • 1 yr 7 mos• Built a decentralized Green Planet ecosystem. • Developed the frontend of the ecosystem using React.js and Tailwind CSS. • Created the smart contract for the ECO token by Solidity, considering the ERC20 protocol of OpenZeppelin and Uniswap Router v2 for it to be traded in the Ethereum network. • Solved the security problems of the smart contract to pass the audit process of the Certik team. • Made the ecosystem alive by integrating the website and the smart contract using Web3 packages, including web3modal and wagmi, and built its backend using Node.js and Express.

Frontend | Web3 Developer

NEYXMar 2022 - Mar 2023 • 1 yr 1 mo• Built a decentralized NEYX ecosystem. • Created the website of the ecosystem using React.js, MUI (Material UI), Node.js, and Express. • Developed the smart contract for NEYX NFT using Solidity and the ERC721 protocol of OpenZeppelin. • Added a security process for whitelisted users using the Merkle-tree package. • Integrated the website and the smart contract using Web3 packages to complete the development of the NEYX ecosystem.

Frontend Developer

FuwariApr 2019 - Mar 2022 • 3 yrs• Contributed to building a NFT marketplace. • Converted 14 UX/UI designs into live frontend pages using Next.js and Tailwind CSS. • Implemented a custom Cypress-based framework for end-to-end testing, with custom scripts, commands and integrations developed in Node.js, and upgraded it to Cypress 10. • Built the frontend of the NFT marketplace dashboard using React.js and MUI (Material UI). • Made the reusable components of repeated elements and animations to reduce the time of the frontend's development and improve its running speed.

Education

Nagoya University

Bachelor's degree, Computer ScienceApr 2015 - Mar 2019

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