The largest e-education platform, which is used by all schools in Moscow and which is rapidly spreading to other regions, is the Moscow Electronic School. A library of materials to help teach students. Teachers and publishers can publish their copyrighted materials to contribute to the overall educational process, create content that will help them conduct lessons, tests and olympiads.- Introduced TypeScript to the 3 projects, more than 500 components were updated within 1 year.- Introduced e2e tests. More than 30% of codebase was covered within 4 months. It reduced the amount of bugs by 20%. - Changed stack from legacy Redux-Saga to Redux Toolkit. 40% of code was moved to modern stack. Time to develop new tasks has been reduced by 30%.- Changed build tools on 2 projects from React-App-Rewired to Vitest. DX was improved. Development build time was decreased from 20s to 1.5s, production build time was decreased from 5m to 25s.- Led a new OAuth-like authorization system. All of the team projects started to use common authorization strategy which reduced amount of code by 5%, simplified UI and provided users a possibility to use their "Gosuslugi" account for all services.- Developed "WebCloud" npm-module, user-friendly virtual-FS subsystem with rich GoogleDrive-like UI. It provides a possibility to upload files, work with collections and conveniently store all materials in folders.- Developed UI-Kit npm-module a common for all projects according to best UI/UX practices. That allowed us to get rid of similar tasks that changed identical functionality on different projects.- Introduced Storybook and integration with Figma. We have increased the time of "useful" work for both designers and developers.- Hired and taught 3 outstanding team members, who advanced from junior to mid-level developers in 1 year.Stack: React, JavaScript, Typescript, Redux-Saga, Redux Toolkit, SASS, Styled-Components, Jest, Vitest

This project is designed to help monitor the cleanliness of courtyards in the city by leveraging the Yandex Maps API. It was developed and tested with residents of Khabarovsk to ensure functionality and user satisfaction.- Developed a comprehensive frontend application using React and TypeScript, ensuring maintainable and scalable code.- Integrated Yandex Maps API to enable real-time tracking and visualization of cleanliness reports, enhancing user interaction and data accuracy.- Implemented state management with Redux, facilitating efficient data flow and reducing the complexity of state handling.- Built a robust backend using Node.js and MongoDB.- Optimized application performance by setting up Webpack for efficient bundling and minimizing load times.- Collaborated with a team of local testers, iterating on feedback to continuously improve the application.- Provided detailed documentation and user guides to facilitate smooth onboarding and usage for new users.Stack: React, JavaScript, Typescript, Webpack, React, Node.js, MongoDB, Material Design, CSS-in- JS

Worked on a diverse array of projects with varying levels of complexity, providing robust and scalable solutions to clients and ensuring high-quality deliverables.- Developed and implemented individual features and components for various web applications using React and TypeScript, ensuring clean and efficient code.- Successfully delivered projects within tight deadlines, maintaining high standards of quality and functionality.- Maintained excellent communication with clients, leading to repeat business and positive client relationships.- Provided technical consultations and recommendations to clients, helping them make informed decisions about their projects.- Adapted quickly to new technologies and frameworks as required by different projects.Stack: React, JavaScript, Typescript, Redux, Redux-Saga, CSS, CSS-in-JS, SCSS, SASS