Pankaj K.

I build Public & custom Shopify apps, backend automation, and API integrations for brands that need reliable systems behind the storefront. My focus is on Shopify Plus, public and private apps, and complex integrations that connect Shopify with 3PLs, ERPs, WMS platforms, suppliers, and logistics providers through REST and GraphQL APIs. With 10+ years of development experience, I help eCommerce teams eliminate manual work, improve data flow, and create scalable architectures that are easier to maintain long-term. I work with Node.js, PHP, Laravel, React, Shopify Functions, OAuth, webhooks, Liquid, Shopify CLI, and checkout extensions to deliver solutions that are built for production, not shortcuts. Clients hire me for custom Shopify app development, API integrations, backend automation, theme customization, and Shopify Plus enhancements. I also provide clear documentation and testing. Enjoy 30 days of complimentary post-launch support, ensuring you have no worries at all! 𝐂𝐨𝐫𝐞 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬: 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, PHP, Laravel, REST & GraphQL APIs 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React, HTML5, CSS3, JavaScript 𝐒𝐡𝐨𝐩𝐢𝐟𝐲: Shopify CLI, Liquid, Theme Customization, Checkout Extensions Every project includes proper documentation, testing, and future-proofing so you’re not left with fragile code. If you need a partner who handles backend complexity while you focus on growth, let’s connect. If you need a Shopify partner who can handle technical complexity and deliver dependable results, let’s connect. Tags- Shopify App Development Shopify API API Integration Node.js React Shopify Plus PHP Laravel GraphQL REST API ERP Integration 3PL Integration Shopify CLI eCommerce Automation Backend Development Shopify App expert on Upwork. Shopify Developer Upwork. Shopify Designer Upwork Shopify Store Setup Upwork. Shopify website development Upwork. Shopify Theme Customization Upwork.