-- IT-Creatives team (08.2020 - 08.2021):1) Created new display ad-formats and supported existing ones with Vanilla JS (In-Page-Push, Interstitial, OnClick)2) Changed ad-formats source code to bypass antiviruses and browser extensions (adblocks)3) Created real-time chat that can be embedded in any web page (NodeJS, socket.io)4) Developed and published chrome extensions in the Chrome Web Store5) Migrated react-app from JavaScript to TypeScript (React, Semantic-UI)6) Helped the neighboring team to make some features in the internal CRM-system (React, Material-UI)-- SSP team (08.2021 - current):1) Developing an application for advertisers: creating and managing advertising campaigns, working with statistics, etc. (React)2) Developing an application for publishers (those who add Ad tags to their sites to earn money): adding and checking a site, getting ad-formats, working with statistics, withdrawing funds, etc. (React / Redux)3) Developing UI-kit (React, TypeScript, styled-components)

Worked with the React ecosystem:1) Took part in a client-side API refactoring2) Integrated web push-notifications lib into the project (OneSignal)3) Fixed broken Google Ads on pages (GPT)4) Replaced deprecated CSS-In-JS lib with another one (Radium -> Emotion)5) Optimised bundle sizes and app performance In general6) Made app refactoring for using the latest React version7) Changed all loadings screens on pages (replaced spinners with skeleton screens)

Worked on different projects:1) Developed CRM system's client-side (Preact)2) Fixed bugs in the online retailer interface (Angular2, RxJS)3) Replaced legacy pages with jQuery to Angular24) Made an API-refactoring on the client side (React)5) Developed HR service's client-side (React, Redux)6) Fixed broken push notifications (Yii2, RabbitMQ)

Worked with PHP, JavaScript, jQuery:1) Fixed bugs in the new SalesPlatform Vtiger CRM 72) Developed new features for clients in SalesPlatform Vtiger CRM3) Created custom modules for CRM with addresses autocomplete4) Fixed some broken scenarios in CRM installation