Working on React Native application.stack: React Native, Redux, Redux Saga, Redux Persist, Styled Components, etc.

Was hired to help with quick start of MVP before near release.Stack: React Native, Native Base, Redux, Redux-Toolkit, ReactQuery, etc...

Developing financial trading mobile application.- writing new features- application architecture design- refactoring- code reviewAlso participated in developing on backend side. As example:- implement pagination for GraphQL on backend side- reduce and optimization of migrations- changing id type for all tables from string type to uuid- updating tests for passing pipelineCompany was bought by PayPal, but after three months of purchase and clearance process in the day when we should have started work in PayPal famous events began in Ukraine. So, that why I finished work so soon here...React Native · GraphQL · Apollo · TypeScript · Styled Components · TypeORM · PostgresQL · Docker

Developing Web (React) and Mobile (React Native) streaming module integrated in web and mobile projects of company.Fixing bugs in streaming implementation.Writing utilities which help team in everyday development.React Native · React · React Hooks · TypeScript · RxJs · Webpack · WebSocket · TypeScript · S3 · DataDog

Developing of Social Media Platform (Hyprr.com) with integrated blockchain payments for content creators.Using git, github as repository jira for task management.Morning calls with team, code review, QA.Setup, research and fix problems of CDNs.Use Next, TypeScript, React, GraphQL/Apollo Client, React Hooks, Material UI and so on.

HR Application.My target was update from old Sails 0.12 to latest 1.x. Also updated all packages on backend and frontend.Moved frontend to Create React App and latest React version.Wrote migrations, do fixes, implemented new features.

Developing of ABBYY Compreno as FullStack JS Developer.Working with db migrations, bug fixes on both client and server sides, implementation of new features.Used Stack: ES6, React, Redux, TypeScript, Angular, RxJs, LoopBack, MongoDB, SCSS, Materialize, NodeJS, Git, Jira, Nightmare.js.Stack: React, Redux, TypeScript, MaterialUI, Webpack, Angular, LoopBack, MongoDB, SCSS, Materialize, Git, Jira.

Developing of Article Recommendation Widget on medical topic.I have worked in three teams (one command is about 5-7 people). In first and second was in role of FullStack JS Developer (database migrations, new business logic and bugfixes).Every morning scrum meetings. Time accounting was performed using Rescuetime app and chrome extension.Communication through Discord and Quip for issues tracking and documentations.In total the company counted more than 70 people of remote developers from all sides of the world.Used Stack: MeteorJS, ES6, React, Flux, CoffeeScript, Sequelize, Elastic Search, Druid, Postgress, GitLab, GIT, Mocha.

My first job where I worked for four years and became a developer.Developed a SPA for IntraHouse (intrahouse.eu) SmartHouse system (demo still available on intrahouse.io:8088) that is worked on smartphones, tabs and pc browsers.Started from jqTouch and jQueryMobile, then write kind of a framework based on requirejs, socket.io, jquery, eventemitter of backbone.Participated in the exhibition of our product in GITEX2014 in Dubai.Additional challenges:Secure protocol between client and server.Store with ability to buy and upgrade customers system with license and plugins.Used Stack: jQuery, EventEmitter, RequireJS, NodeJS, MongoDB, Socket.io, HTML5.