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Dogu Cagri O. Status: Offline
Izmir, Turkey
100% Job Success
Top Rated Plus

Full-stack Engineer | React/Next, TailwindCSS | A/B Testing

🚀 Worked with: 🥇 Growth Engineering & Full-Stack @ UK/US's biggest online pharmacies:         HeliosX Group (ZipHealth & MedExpress) – React, Next.js, Feature Flags, LaunchDarkly, Amplitude, VWO, CI/CD 🥈 Elsevier – Led Osmosis App’s migration to a modern React-based stack. ✅ Envato Market – World’s largest WordPress theme marketplace – performance optimization & component architecture ✅ eCommerce Platforms - Full-stack builds with Node.js, Express.js, Next.js, and React - Shopify, WooCommerce customizations - 10K+ users, multi-language support, dynamic content ✅ LMS Platform – From zero to launch: Scalable platform for 10K+ students, including user roles, payments, and analytics ✅ B2B eCommerce – For a company with 400+ dealers, fully custom theme implementation + real-time data sync ✅ UK Video Editing SaaS – Interactive UI with React.js, performance-first builds, CI/CD with GitLab & Netlify ✅ Countless small/medium businesses – End-to-end builds, theme customization, and UX revamps 🛠️ Tech Stack Overview 🎨 Frontend Development - React.js, Next.js, TypeScript, JavaScript (ES6+) - Tailwind CSS, SCSS/SASS, Bootstrap 5 - Vite, Webpack, Babel, Storybook - UI/UX best practices with a focus on performance & conversion 🧠 State Management - Redux Toolkit, Zustand, Context API, SWR, React Query 🔧 Backend Development - Node.js, Express.js - REST API & GraphQL - Auth (JWT, Firebase Auth), Payment Integrations (Stripe, PayPal) 🗄️ Database - MongoDB, Supabase, PostgreSQL, Firebase Realtime DB & Firestore - ORM/Query Builders: Prisma, Mongoose ☁️ DevOps / CI-CD - AWS (Lambda, S3, CloudFront, API Gateway) - Firebase, Vercel, Netlify - GitHub Actions, GitLab CI/CD, Docker (basic) 🧪 Testing - Unit & Integration: Jest, React Testing Library, Vitest - End-to-End: Cypress, Playwright 🧬 A/B Testing & Growth Tools - LaunchDarkly, Amplitude, VWO, Hotjar, Google Optimize - Conversion tracking setup, event-driven growth analysis ⚙️ CMS & WordPress - Custom WordPress Development - Elementor Pro, WPBakery, ACF, CPT - WooCommerce, Shopify (customizations) - SEO & performance optimization (Core Web Vitals focused) 📱 Mobile Development - React Native, Expo - Shared UI logic and backend across mobile and web 🤗 So... Why me? Some of the comments about my services: "Fantastic communication, prompt turn around on work and ready to engage with all kinds of work, even the work with less requirements/specification. Cagri is able to adapt to all scenarios thrown at him." "Amazing professional! Great communication throughout the entire process. It was a pleasure to work with Cagri, and I look forward to continuing to cooperate with him in the future." 📞 Book an immediate free Zoom call via Upwork to discuss the details and get an offer!
Work history
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Skills

Skills

  • React
  • Next.js
  • Node.js
  • PSD to HTML
  • ExpressJS
  • Front-End Development
  • jQuery
  • TypeScript
  • PHP
  • JavaScript
  • Web Design
  • Web Development
  • WordPress
  • CSS

Get started working with Dogu Cagri quickly with these predefined projects.

Get started working with Dogu Cagri quickly with these predefined projects.

You will get perfect wordpress website with enhanced conversion

From $369
3 days delivery

You will get a perfect WordPress LMS website

From $199
3 days delivery

You will get a pixel-perfect PSD to HTML conversion

From $40
1 day delivery

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