I have a working experience in different projects, each presenting unique challenges and tasks.1. Air Quality Monitoring Web Platform. This proof of concept project involved developing a web platform to monitor air pollution in various city districts. We used data from meteorological stations to provide precautionary measures and routes for walks and relaxation.Tasks Accomplished:- Implemented a 2D map with clustering capabilities.- Developed a sidebar displaying air quality indicators with real-time data update functionality.- Integrated localization system.Tech Stack: React, Typescript, Chakra UI, Zustand, React Query, i18next, React Leaflet, WebSocket2. Online Learning Platform. This startup aimed to develop a platform for online learning in both individual and group formats. One of the key features was the ability for teachers to create educational content using an editor and engage in online interactions via video streaming.Tasks Accomplished:- Implemented authentication via NextAuth and Nest.js JWT.- Developed an HTML editor (rich text editor) for preparing educational materials.- Created a calendar for managing lesson schedules.Tech Stack: Nest.js, Next.js, Typescript, Tailwind, Slate.js, Conform, GraphQL, WebRTC, WebSocket, Prisma ORM, PostgreSQL3. Natural Resources Exploration Project. A development and maintenance of 9 micro-frontend SPA applications for researching natural resource deposits.Tasks Accomplished:- Implemented a table with column order and size customization.- Developed a custom open-source library for exporting (screenshotting) pages to SVG, PNG format, significantly reducing image size and waiting time.- Created histogram charts to display and compare metrics using linear or logarithmic calculations.- Implemented various widgets for interaction with the map.Tech Stack: React, Typescript, Tailwind, Redux Toolkit, Vituoso and React Window, Canvas, Babylon.js, ArcGis, Nx monorepo, Web Workers, React Hook Form, Zod