Denys K.

React Developer | Node.js | Full Stack Developer | WordPress Developer

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.