Sumit S.

BigCommerce Designer | BigCommerce Developer | Shopify Developer | SEO

Looking for an experienced eCommerce developer who can build, customize, optimize, and maintain a store that is designed to generate sales? I am Sumit, a Top Rated Plus eCommerce specialist with extensive experience building and optimizing online stores for startups, growing brands, and established businesses. I specialize in: 🛍️ Shopify Development Custom Shopify store development Shopify theme customization Shopify 2.0 development Custom sections and features App integrations Shopify API integrations Store migration and redesign Speed and performance optimization Bug fixing and ongoing maintenance 🏪 BigCommerce Development Custom BigCommerce development Stencil theme customization Store setup and redesign API integrations Custom checkout solutions ERP/CRM integrations B2B eCommerce solutions Performance optimization and maintenance 🌐 WordPress & WooCommerce Custom WooCommerce stores WordPress development Theme and plugin customization WooCommerce integrations eCommerce migrations Performance, security, and SEO optimization 📈 Conversion & eCommerce Optimization I don't just focus on making your website look good. I focus on helping it perform better. I can help with: Conversion Rate Optimization (CRO) UX/UI improvements Mobile optimization Product-page optimization Checkout optimization Analytics and tracking A/B testing Store performance and speed Why work with me? ✅ Top Rated Plus freelancer ✅ 100% Job Success ✅ 199+ completed Upwork jobs ✅ 13,000+ hours worked on Upwork ✅ Shopify, BigCommerce & WooCommerce expertise ✅ Experience with startups, growing businesses, and established brands ✅ Clear communication and reliable delivery ✅ Available for both one-time projects and long-term partnerships Whether you are launching a new Shopify store, migrating to BigCommerce, improving an existing WooCommerce website, fixing technical issues, or increasing your store's conversion rate, I can help. Send me a message with your store URL and what you are trying to achieve, and I will help you identify the best approach.