Zeshan — Backend Development freelancer in Berlin

👋 Hi, I'm Zeshan – a Top Rated Plus Upwork Certified Full-Stack & Shopify Developer with over 11 years of experience in building high-performance web applications and eCommerce platforms. 💼 Why Work With Me? 🎯 100% Satisfaction Guarantee – If I ever set the wrong expectations and can't deliver, you’ll get a full refund, no questions asked. 🏆 Top 10% Talent on Upwork – Proven success working with startups and global brands 📈 150M+ Active Users on the web apps I’ve developed ✅ 300+ Projects Delivered successfully ⚡ Available for RUSH Projects ✮ Worked with German unicorn companies 🕒 Available 18 hours a day 💻 Full-Stack & Web App Development Frontend: React.js, Next.js, Redux, Vue.js, Nuxt.js, Gatsby.js, TypeScript, TailwindCSS, MUI, SCSS Backend: Node.js, Express, Nest.js, PHP, Python, Java, Ruby, GraphQL, REST APIs CMS & No-Code: WordPress, Webflow, Shopify, WooCommerce, Wix, Bubble.io, Retool Databases: PostgreSQL, MongoDB, MySQL, Firebase, Redis Cloud & DevOps: AWS, Lambda, Docker, Kubernetes, Serverless Custom Systems: RAG pipelines, GPT\u002FLLMs, function calling, model fine-tuning 🛒 eCommerce & Shopify Expertise Shopify Plus, Hydrogen, and Remix development Custom Shopify themes, Liquid code, and API integrations (Node.js + React.js) Shopify SEO, CRO strategies, and performance optimization Checkout customization & headless commerce solutions PSD\u002FFigma to Shopify conversion & redesign 🎯 Digital Marketing & Growth Google Ads, Bing Ads, Facebook\u002FInstagram\u002FTikTok ad campaigns CRO strategies for Shopify\u002FWooCommerce SEO (on-page\u002Foff-page), PPC, retargeting, A\u002FB testing Google Tag Manager, Google Analytics, heatmaps & performance tracking 📌 Industries I’ve Worked In 🚚 Transport & Logistics ✈️ Travel 🌾 Agriculture 👨 ⚕️ Healthcare 🛍️ eCommerce 🚨 Emergency & Civil Defense Services 🔧 Tools & Workflow Project Tools: Slack, JIRA, Trello, Asana, ClickUp, Zoho, Basecamp Version Control: GitHub, GitLab Development Practices: Agile, Scrum, TDD, CI\u002FCD, Jest 🤝 Not the Right Fit If ❌ Your project involves adult or betting content ❌ You don’t value transparency or mutual respect ❌ You're not open to collaborative communication 📞 Book a 30-Min Free Consultation Got an idea or a project in mind? Let’s connect! I’ll provide a clear technical roadmap, timeline, and cost estimate. Message me now to get started with a no-obligation discovery call. Best Regards, Zeshan Mahmood