Dmytro Z.
100% Job Success
Top Rated Plus

Senior Front-end Developer: JavaScript | React.js | Next.js | Web3.js

✅ 7+ Years of Experience ✅ 3500+ hrs on Upwork ✅ 18/24 hrs Online 👋 I'm Frontend (React.js | Next.js | Ethers.js | Web3.js | Electron.js | Alpine.js | JavaScript) developer, which could build interactive experiences for web application and solve challenging problems that occur. Also, specialize in high performance modern frontend solutions with API integrations, Web3. The stack: ✢ Vanilla JS(ES5/ES6+) / React.JS + Mobx + JSX + React Query / Next.js / Typescript / Ethers.js | Web3.js / Electron.js / Alpine.JS; ✢ Cyprus, Jest (QA Automation); ✢ GraphQL; ✢ Node.js, experience of deploying sites on the NodeJS server; ✢ JSON, AJAX, API; ✢ CI / CD; ✢ Gulp (created own and permanently update it) / Webpack; ✢ HTML5, Pug / jade template languages; ✢ CSS3, CSS preprocessors (SASS (mixins), Less, Stylus); ✢ Material / Bootstrap / Tailwind / Bulma; ✢ SVG animations (css/js); ✢ Cross-browser compatibility (Edge, Safari, Chrome, Firefox, etc.); ✢ BEM-, atomic-methodology; ✢ Responsiveness / Mobile-first development / Pixel-perfect development; ✢ Git; ✢ Task-management tools (Trello, Jira); ✢ Developer tools and version control; ✢ DeFI/GameFI; ✢ Custom Websites Development; ✢ CMS development; ✢ Telegram bot development; ✢ Booking system development; ✢ Learning system development. 🌎 Feel free to ask me any questions :) Hourly rate we may discuss. You may propose me your rate, write me.
Work history

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  • API
  • TypeScript
  • Next.js
  • Redux
  • Mobx
  • web3.js
  • Tailwind CSS
  • Electron
  • Jest
  • Ethers.js


Endorsements from past clients

"We created 11 websites with Dmitry Z. Some websites were built from scratch, while others used templates. In every case, Dmitry performed great and continued development until we were 100% satisfied. All I can say, it's a pleasure working with Dmitry!"

Nazim R. | CEO at Saturn Studios
Creating websites Sep 2020


"Professional, fast, attentive and patient. Well-done work and high speed are his greatest strengths. I praise and thank you a thousand times for a job well done on projects and cooperation, I recommend it as a reliable performer. We have been cooperating for more than two years, ordering various projects for development. He always fulfills all the stated requirements and wishes, listens to the client and offers the best options for solving problems, without going beyond the agreed budget. I have collaborated with different developers and I can safely say that Dmitry is one of the best. Thank!"

Anton R. | Head of Marketing
Creating websites Sep 2020


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