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Daniil R.
@daniilfrontend
Front End Developer
Germany
Ukrainian, English, Russian
About me
I’m a Frontend Developer specializing in React, Next.js, TypeScript, and modern web development. I build responsive websites and web applications with clean architecture, reusable components, API integration, and a focus on performance and UX.
I have experience with SaaS, language-learning, real-time chat, booking, and other interactive web applications.
I also provide PDF to Word conversion, document processing, and B2B lead generation.
I’m open to different projects and enjoy solving new technical challenges. Feel free to contact me to discuss your project.
Skills
Daniil R.
Offline •
See my services
Formatting
I will convert PDF to editable word document
Custom Websites
I will build a fast modern landing page website in react or nextjs
Portfolio
Work experience
Upwork
Full-time • 11 mos
Middle Frontend Developer
Feb 2026 - Present • 7 mos
Startup Language Learning Platform Developing a mobile-first language learning platform inspired by Duolingo using React, TypeScript, SCSS, and Zustand Building scalable frontend architecture and reusable UI components for vocabulary and interactive learning features. Implementing responsive and PWA-ready functionality optimized for desktop and mobile devices. Collaborating within a startup team on product development, feature planning, and UI improvements. Focused on performance, maintainability, and clean React architecture across the application.
Frontend Developer
Oct 2025 - Feb 2026 • 4 mos
Real-time Chat Platform Developed a real-time chat platform using React, TypeScript, REST API, and WebSockets with multi-room support. Implemented live messaging features, connection state handling, and real-time delivery updates. Built responsive and user-friendly interfaces optimized for desktop and mobile devices. Collaborated with other developers on frontend integration, feature development, and application architecture. Maintained synchronization of persistent chat data across REST API and WebSocket layers.
Frontend Developer
SoftServe • Full-time
Mar 2025 - Sep 2025 • 6 mos
Developed a movie platform using React and TypeScript in collaboration with a team of 3 frontend developers, backend developers, and a UI/UX designer. Built reusable UI components and responsive interfaces for desktop, tablet, and mobile devices. Integrated REST APIs with asynchronous data handling, loading states, and error management. Participated in code reviews and worked within a Git-based development workflow. Collaborated on feature implementation, frontend architecture improvements, and user experience enhancements.
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websmithstudio3
Germany
Fantastic experience! Everything was completed quickly and with great attention to detail. Communication was smooth and friendly throughout the entire process, and the seller was always quick to respond and easy to work with. They understood exactly what I needed without any complications and delivered...
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