Demyd G, Senior React Developer with Blockchain Experience

Wallet and Web3 Integration, Front-End Web

B2 (Upper-Intermediate) English

Senior (5-10 years)

Kharkiv, Ukraine UTC+02:00

Summary

- Senior software developer with about 7 years of experience
- Web applications for crypto finance (including wallet for Ethereum using ether.js (deposit, withdrawal, staking operations) and web3.js (connect Metamask, get balance, withdraw and deposit tokens)
- Maintaining web applications with Front-end jQuery, Vue.js, React.js, React Native, Angular.JS, Angular 2+ and PHP Laravel, WordPress
- Hands-on experience of both working as a single developer and being a part of big Agile teams.

Hire Demyd G

Main Skills

React

Web3

Programming Languages

JavaScript PHP TypeScript

JavaScript Frameworks

Angular AngularJS jQuery React Vue.js

UI Frameworks, Libraries, and Browsers

CSS HTML jQuery JSS Material UI SCSS Styled components

JavaScript Libraries and Tools

Ethers.js JSX Mobx React Hooks React Native React-Saga React Testing Library React Thunk Recoil Redux RxJs Styled components Webpack

PHP Frameworks

Laravel Yii

Databases & Management Systems / ORM

Firebase MySQL SQL

UI/UX/Wireframing

Adobe Photoshop Sketch

Web/App Servers, Middleware

Apache HTTP Server Nginx

Scripting and Command Line Interfaces

CLI

Virtualization, Containers and Orchestration

Docker

BlockChain and Decentralized Software

Ethers.js Web3

Platforms

Firebase WordPress

Version Control

Git

SDK / API and Integrations

GraphQL RESTful API

QA, Test Automation, Security

Jest JMeter Postman React Testing Library

ID: 100-016-900

Last Updated: 2023-07-04

EXPERIENCE

Front-end developer, Crypto finance platform

04/2021 – 02/2022

Web application for crypto finance. App gives people the ability to invest in minerals like iron, nickel, tin, gold using crypto tokens. I was taking part in developing a wallet for Ethereum using ether.js (deposit, withdrawal, staking operations) and web3.js (connect to Metamask, get balance, withdraw and deposit tokens)

Technologies: TS, React.js, Web3.js, Ethers.js, MobX, Recoil, Rxjs, Styled Components, HTML, SCSS, Webpack, REST.

Front-End Developer, Online Medical Web Store

04/2020 – 04/2021

Making markup, developing react modules from scratch, setting up and updating webpack, migrating to new react version, and implementing react hooks.

Technologies: HTML, CSS, Typescript, React (React Hooks), JSX, Redux, Webpack.

Full Stack Developer, Under NDA

12/2019 – 04/2020

CRM web application for a logistics company.
Technologies: PHP, Laravel, SQL, MySQL, TypeScript, GraphQL, SCSS, Webpack, React.
React Native application for managing Bluetooth devices, sending their location to CRM server and using this data later while calculation, metrics and etc.

Front-end Developer, Under NDA

05/2019 – 11/2019

Cryptocurrency application for managing your crypto assets. Working in a scrum team 2 front-end, 1 Back-end, 1 Qa, 1 PM.

Technologies: HTML, CSS, React.js, Redux, TS, Firebase, Jest.

Front-end developer, E-banking application

04/2018 – 05/2019

Web application for online banking. Implemented functionality related to buy/sell stocks as well.

Technologies: Javascript, React.js, Redux, RxJS, Redux, Styled Components, REST.

Fullstack Developer, Food Delivery App

07/2017 – 04/2018

Developing front-end of food delivery application, similar functionality to Uber eats. Team of 2 developers, 1 Front-end, 1 Full stack

Technologies: PHP, Laravel, AngularJS, JS, HTML, CSS.

PHP Yii Developer, Under NDA

01/2015 – 07/2017

Web application for booking doctor appointments. Working on back-end and front-end

as well.

Technologies: PHP, Yii, HTML, CSS, JS, jQuery, Postman, MySQL