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You will get Front End Developer | React developer | Full Stack Developer NextJS Next.js

Denys K.Status: Offline
Denys K. Denys K.
4.7
Top Rated
Preview image

Let a pro handle the details

Buy Custom Website Programming services from Denys, priced and ready to go.
Denys K.Status: Offline
Denys K. Denys K.
4.7
Top Rated
Preview image

Let a pro handle the details

Buy Custom Website Programming services from Denys, priced and ready to go.

Project details

❗ Before purchasing this project, please send your development requirements through Upwork Direct by visiting my profile so I can review them and respond positively!


Services: front end developer | react developer | web developer | full stack developer | wordpress developer | next.js | wordpress | nextjs developer | tailwind css | shopify | React Native | Node.js | Magento | frontend developer | frontend react | frontend engineer | react js | react typescript | full stack web developer | web app developer | shopify web developer | fullstack developer | nextjs typescript | tailwindcss | mern stack developer | backend developer | next.js 15 | supabase | inngest | rag | ai platform | payload cms | workforce portal | migration | bedrock setup | figma to wordpress | figma to html | shopify front end developer | react native developer | nextjs tailwind | nextjs wordpress | fullstack web developer | next.js seo | react next.js | mern stack | typescript node.js backend developer | dev partner | bedrock setup | recman api integration | video streaming app | front end web developer | frontend design | web app development | shopify developer | react development.
Programming Languages
PHP, HTML & CSS, JavaScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Design

What's included $50

These options are included with the project scope.

$50
  • Delivery Time 10 days
  • Number of Revisions 0
4.7
15 reviews
80% Complete
(12)
13% Complete
(2)
1% Complete
(0)
1% Complete
(0)
7% Complete
(1)

CM

Callan M.
5.00
Dec 24, 2025
Graphics Improvement for ReactJS Landing Page

PK

Parsa K.
5.00
Oct 10, 2025
Front End and back end react native, react, nestjs, Developer for Bug Fixing Great work, he was flexible with us

JI

Jeff I.
5.00
Aug 7, 2025
Looking for a developer to make a real estate/weather app for Android and iOS

JL

Jess L.
4.40
Jul 30, 2025
B2B Front end developer work

JV

Jimmy V.
5.00
Jun 11, 2025
Front-end Developer with React & Next.js Expertise for E-commerce Project. Outstanding work! Denys approached the challenges with professionalism and delivered clean, performant code that noticeably improved our platform. Hi skills in React and Next.js, greatly improved our page load times, Core Web Vitals improved, and all layout and rendering issues across breakpoints were resolved quickly. He also refactored outdated components and enhanced mobile responsiveness, all while maintaining a clear focus on UX and performance. A reliable, detail-oriented developer, we will definitely work with Denys again!
Denys K.Status: Offline

About Denys

Denys K.Status: Offline
React Developer | Node.js | Full Stack Developer | WordPress Developer
100% Job Success
4.7  (15 reviews)
Chernivtsi, Ukraine - 8:36 am local time
Stop paying for technical debt - start investing in scalable growth. Most developers can write code, but very few can architect a system that grows with your business. With 12+ years of experience and 200+ successful projects, I bridge the gap between high-end custom engineering (React/Next.js) and powerful enterprise platforms (WordPress/Magento 2).

⭐️⭐️⭐️⭐️⭐️ "Denys is a rare find. He delivered a high-performance architecture that was clean, scalable, and exactly what our business needed to level up. A true partner, not just a freelancer."

Why High-Ticket Clients Choose Me:

I don’t just "build websites" - I engineer high-performance digital engines designed for maximum ROI. My dual expertise in custom apps and enterprise CMS allows me to solve problems others can't:

Custom Product Engineering: Specialized in Next.js and React ecosystems with TypeScript and Tailwind CSS. I build SPAs and Dashboards that are lightning-fast and SEO-optimized by default.

Cross-Platform Mobile: Expert React Native development. I create iOS and Android apps that share logic with your web platform, saving you 40% on development time.

Enterprise E-commerce: Deep mastery of Magento 2 and WordPress/WooCommerce. I handle complex migrations, custom plugin development, and high-load optimizations.

Performance First: My builds don't just work; they fly. I focus on Next.js Vercel deployments, Core Web Vitals, and clean architecture that eliminates future maintenance headaches.

🛠 Technical Ecosystem:

Frontend: React.js, Next.js (SSR/ISR), TypeScript, Tailwind CSS, Redux/Zustand.

Mobile: React Native, Expo, Mobile App Development (iOS/Android).

CMS & E-commerce: WordPress (Custom Themes/Plugins), Magento 2, Shopify, Elementor.

Backend & Ops: Node.js, API Integrations, Supabase, Firebase, Vercel.

Design to Code: Pixel-perfect Figma to React and Figma to WordPress conversions.

📊 Proven Business Impact:

🔶 Logistics SaaS (Node.js & React):

Boosted processing efficiency by 200% and cut manual work by 70% through smart automation.

Reduced human error by 50% with an intuitive, custom-built UI using Tailwind CSS.

🔶 E-commerce Scaling (Magento & Shopify):

Drove a 15% revenue increase by optimizing performance and UX.

Reduced bounce rate by 30% via strategic Next.js implementation.

🔶 Health Tech (React Native):

2x User Retention by redesigning the mobile onboarding flow and performance optimization.

🚀 Why Partner With Me?

Senior Authority: 12+ years in the industry. I’ve seen every bug and fixed every bottleneck.

Business Mindset: I speak "ROI" and "Conversion," not just "Code." I suggest the best technical path to reach your financial goals.

Clean & Maintainable: I write code that other developers love to work with. No technical debt, no spaghetti code.

Flawless Communication: Professional project management, clear milestones, and 100% reliability.

Looking for a Senior Partner to take your technical vision to the next level? Click the "Invite" or "Hire" button, and let’s discuss how I can help your business grow.

Steps for completing your project

After purchasing the project, send requirements so Denys can start the project.

Delivery time starts when Denys receives requirements from you.

Denys works on your project following the steps below.

Revisions may occur after the delivery date.

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Review the work, release payment, and leave feedback to Denys.