Hire javascript developer expert. Roman Matviy Ukraine. Remote developer. JavaScript Developer — Roman Matviy | JS, jQuery, Vue.js, ES2024 | Hire Now.

JavaScript · jQuery · ES2024 · GSAP · Axios

JavaScript Developer for Hire

Need reliable JavaScript development? I write clean, modern ES2024 JavaScript — interactive UIs, animations, API calls, jQuery enhancements, and complex frontend logic. 7+ years of JS experience.

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What I build

Services & Capabilities

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Modern ES2024 JavaScript

Clean, modern JavaScript using latest ES features — async/await, destructuring, modules, optional chaining, and proper error handling.

🎭

GSAP Animations

Smooth, performant animations and scroll-triggered effects using GSAP — timelines, ScrollTrigger, and custom easing functions.

🔌

Axios & Fetch API

HTTP client setup with Axios or Fetch — interceptors, error handling, request cancellation, and typed responses.

📦

jQuery & Legacy Code

jQuery development and maintenance for existing projects — plugins, DOM manipulation, AJAX, and event handling.

🏗️

Module Architecture

Well-structured JavaScript modules with clear separation of concerns — easy to test, maintain, and extend.

⚡

Vite & Webpack

Modern bundler configuration — Vite for fast development and optimized production builds, Webpack for complex configurations.

Tech stack

Related Skills

JavaScript ES2024 jQuery GSAP Axios Vite Vue.js TypeScript Webpack Gulp BEM AJAX Fetch API

Open source & live work

Projects

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KeyTest

Interactive keyboard tester built with vanilla JS and jQuery.

JSjQueryHTML

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InvoiceMaker

Invoice generator with complex JS logic.

JSjQuerySCSS

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Portfolio

Animated portfolio with jQuery and smooth interactions.

JSjQueryBootstrap

Common questions

FAQ

Do you use vanilla JS or jQuery? +

Both. Vanilla ES2024 JS for new projects, jQuery for maintenance of existing codebases. I never force jQuery onto a project that doesn't need it.

Can you add animations to my website? +

Yes. GSAP is my animation library of choice — smooth, performant animations that work across all browsers.

Do you write JavaScript for WordPress? +

Yes. Custom JavaScript for WordPress themes and plugins — jQuery in the admin, vanilla JS or Vue.js on the frontend.

Can you optimize slow JavaScript? +

Yes. I profile JS performance, reduce bundle sizes, lazy-load modules, debounce expensive operations, and remove unused code.

Do you test JavaScript code? +

Yes. I write unit tests for complex logic and use browser dev tools for interaction testing. Jest for unit tests when a test suite is required.

Explore more

Related Technologies

Vue.js TypeScript TailwindCSS SCSS / SASS HTML5 / CSS3