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Nick K.

Nick K.

Senior Frontend Developer

🔥 Senior Front-End Engineer | Angular & React Expert | Problem Solver Focused on Business Results I am a Master's-level Front-End Developer specializing in modern, scalable, and performance-driven web applications. I do more than write code—I solve business challenges through thoughtful architecture, maintainable solutions, and user-focused interfaces. I excel at: ✔ Diagnosing complex UI/UX and performance issues and implementing optimized solutions ✔ Transforming requirements into scalable, future-proof architectures ✔ Improving existing applications through refactoring, modernization, and best practices ✔ Building responsive and accessible interfaces that convert, retain, and engage users If your goal is a reliable, clean, and outcome-oriented front-end that supports your product and business, I deliver solutions that work today and scale for tomorrow. 💡 Core Expertise ✔ JavaScript (ES6+), TypeScript, jQuery, Vue.js ✔ Angular 2+ (SPA development, RxJS, state management) ✔ React/Next.JS ✔ HTML5, PSD/Figma to HTML, W3C-valid, adaptive UI ✔ CSS3, LESS, SASS/SCSS, responsive and pixel-perfect layouts ✔ UI/UX implementation, design systems ✔ Unit tests (JEST) ✔ Wordpress ✔ Ng.RX, Narvel(NX), Redux ✔ Webpack, Git (GitHub, GitLab, Bitbucket) ✔ MongoDB, Mongoose ✔ Firebase (Auth, Firestore, Hosting) ✔ Custom Web Application Development 🛠 Development Toolkit 🔧 Building SPA applications using Angular 🔧 Project bundling and build automation (Gulp, Webpack) 🔧 Building React/Next.JS App 🔧 Distributed version control workflows (Git) 🔧 Testing in Chrome, Firefox, Safari, iOS devices 🔧 Working with designers via Figma, Sketch, Photoshop, InVision, Zeplin, Avocode 🔧 Supporting clear and fast communication through online collaboration tools 🚀 Work Process ⏰ Availability: Monday–Friday | 10:00–18:00 (GMT+2/UTC+2) 🗣 Client communication at agreed convenient times 📄 Requirements clarified and confirmed before development begins 📍 Reports after each stage with goals for the next phase 📱 Real-device and real-browser testing on iPhone, iPad, macOS; others via BrowserStack 📦 Full delivery after QA + post-launch support 💬 Free project-related consultations My goal is to deliver technical solutions that are scalable, profitable, and support long-term business success. ♺ Highlighted Skills Web Development | Responsive Web Development | Git/GitHub | API | JavaScript | Angular | Vue.js | HTML5 | CSS3 | WordPress (Plugins, Elementor, WooCommerce) | OpenCart | Flexbox | Firebase | MongoDB | SPA Development, React, Next.JS

🇺🇦Uzhorod, Ukraine$38/hr100% JSS5.00 (23)Since Apr 2016

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#318,460 / 412k
🇺🇦Country#12,037 / 14.3k
Revenue, last 30 days
$0
Total earnings
$2.4k
World#318,460 / 412k
🇺🇦Country#12,037 / 14.3k
Per project
$99
Projects, last 6 months
0
World#209,850 / 412k
🇺🇦Country#7,324 / 14.3k
Projects in all
24

Across 25 contracts

92% fixed8% hourly
World#116,630 / 412k
🇺🇦Country#5,020 / 14.3k

Earnings, last 30 days

$2.4kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$2,350$2,375$2,400$2,425Oct 9Oct 24Nov 8

No data since Nov 6, 2026.

Skills