● Lead the frontend development of the application, design the architecture, plan tasks and control the code quality. ● Develop a web application based on Next.js, React and TypeScript, actively integrate modern tools and frameworks (tRPC, Radix UI, Shadcn/ui, Tailwind CSS, etc). ● Design and support the PostgreSQL database using Drizzle ORM, I am responsible for migrations, data structure and query optimization. ● Fully integrate external services and APIs (OpenAI, Clerk). ● Set up and support CI/CD processes, ensure code quality using ESLint, Biome. ● Implemented monitoring and analytics via Posthog and Sentry. ● Team: 4 frontend-developers, 3 backend-developers.

● I refactor and optimize the React codebase using TypeScript and Redux. ● Develop new UI modules and improved performance, using React, TypeScript, Redux and Styled Components. ● Integrate external APIs, worked closely with backend, QA and design team. ● I search for and fix bugs, which increased the stability and quality of the final product. ● Ensure quality standards and consistent code style using ESLint and Prettier. ● Team: 2–4 frontend-developers, 4 backend-developers, designer, QA, DevOps.

● Developed responsive and cross-browser websites using HTML, CSS (SCSS), JavaScript, ensuring high quality user interface (UI/UX). ● Implemented frontend logic in JavaScript, improving interactivity and usability of websites. ● Conducted diagnostics and fixed errors in the existing code base, optimized the performance and maintainability of projects. ● Actively interacted with designers and the development team to effectively solve problems and implement projects. ● Conducted cross-browser testing of finished websites to ensure stability and uniform display. ● Optimized web page loading, significantly increasing speed and performance.

● Developed from scratch the SPA application "Student's Personal Account" using React, TypeScript and Redux Toolkit. ● Implemented interfaces using Styled Components, providing flexibility and scalability of style solutions. ● Conducted diagnostics and bug fixes, improving the stability and performance of the application. ● Conducted regular code reviews, monitored compliance with code quality standards and best practices. ● Worked closely with the development team, designer, QA, Team Lead, Project Manager and DevOps to effectively plan and execute tasks. ● Team: 3 frontend, 3 backend, designer, QA, Team Lead, Project Manager, DevOps.