Description:TheApps.cloud company creates functional sites-services with integration to SEO|SMM-platform Semrush.Main tech stack of front-end: SPA, React 18 (hooks), Zustand, Webpack, TypeScript, Intergalactic (Semrush UI-kit), SASS/SCSS, Jest, Testing Library, EslintMy responsibilities: - Fully implemented from scratch three sites-services with integration to Semrush API- Laid the cornerstone of frontend development by establishing code style, standards and best practices.- Apps were implemented with Simple Modular Architecture (similar to Atomic Design Methodology) With integration of Intergalactic UI-kit- Unit testings with Jest and Testing Library- Tech docs writing- Tasks setting and decomposition

A small start-up team of four seniors and a willingness to make video games. Unfortunately, we had a different vision of the project, so after 4 months of development, we decided to freeze it.Remaining result - https://emeraldweb.vercel.app/

Description:It's a complex solution for constructions and development which provides tools and ready-to-use packets for creating virtual tours.Main tech stack of front-end: SSG + SPA, Monorepo (npm), Webpack, TypeScript, React 16 (hooks), Redux (RTK), Axios, Tree.js, Websockets, SASS/SCSS My responsibilities: - Leading a team of seven frontend developers. Tasks management, estimation, setting and decomposition.- App tech design and architecture. Global and local refactoring of monorepo (multiple sub apps united). Features development.- Code writing, reviewing and integration of common code style, standards and best practices.- Tech docs writing- Frontend job interviews

Description: Worldwide online entertainment system with unique features for the market.Main tech stack of front-end: Main site - SSG only (classic), Webpack, Javascript (ES6), Websocket, SCSS, Pug/Jade, Canvas, Howler, BackstopJS Intermediate version - SPA, React (16), Redux, Jest/Enzyme, WebpackMy responsibilities:- Development of a client part of a site-service from scratch for several versions, conversion of the site in SPA format on React.- Legacy refactoring and maintenance.- Development and maintenance of a chat on Websocket. - Implementation of prelanding and landing pages.- Unit testing by Jest/Enzyme, automated visual testing by BackstopJS.

I was developing a project from scratch by myself and participated in team developement of four projects based on isomorphic web app boilerplate React Starter Kit by Kriasoft. Development of isomorphic application, implementation of design and features, maintenance, optimization, performance enhancement, routing, locales, API, etc.Code review, task management, juniors training.