Kashmir S.

Shopify Developer | CS-Cart Multi-Vendor Expert | Marketplace & Stores

Shopify and CS-Cart Developer with a track record of 300+ projects. I build ecommerce stores and marketplaces that need custom functionality, smoother operations, stronger conversion paths, and reliable integrations beyond standard platform features. Clients usually come to me when they need to build a new ecommerce store, extend an existing platform with custom functionality, connect Shopify or CS-Cart with external systems, improve marketplace operations, migrate from another platform, or solve performance and functionality issues without disrupting the live business. SHOPIFY & SHOPIFY PLUS • Shopify store development and Shopify 2.0 theme customization • Custom Liquid sections, templates, product pages and collection layouts • Cart drawers, upsells, bundles, quantity discounts, variants and swatches • Product, collection, cart and checkout customization • Shopify Plus checkout extensions and advanced storefront functionality • Dropshipping stores and supplier workflow customization • Store redesigns, migrations and existing-store improvements • Speed optimization and Core Web Vitals improvements • Klaviyo, payment, shipping and third-party system integrations CS-CART MULTI-VENDOR I build and customize CS-Cart stores and Multi-Vendor marketplaces where vendor operations, commissions, orders and payouts need to work reliably as the marketplace grows. • Custom CS-Cart add-ons and marketplace functionality • Vendor registration, onboarding and seller dashboards • Product approval and vendor product management workflows • Commission rules and seller management • Order routing, vendor payouts and marketplace administration • Custom payment and shipping functionality • Marketplace integrations and custom business workflows • CS-Cart upgrades, migrations, troubleshooting and performance optimization CUSTOM DEVELOPMENT & INTEGRATIONS My technical experience includes PHP, Laravel, MySQL, Smarty, Liquid, JavaScript, React, REST APIs, GraphQL, Shopify APIs and CS-Cart development. I build integrations for inventory and product synchronization, order processing, CRM/ERP connectivity, supplier systems, customer data, payments, shipping and other ecommerce operations that need to stay synchronized reliably. I also work with OpenAI API and ecommerce automation for use cases such as customer support workflows, product and catalog operations, order-related automation, internal processes and other repetitive ecommerce tasks. HOW I WORK: I first understand the existing store, marketplace workflow and business requirements before making changes. New functionality is developed and tested carefully before it affects live customers, orders or marketplace operations. If you have a Shopify store, Shopify Plus project, CS-Cart Multi-Vendor marketplace, custom integration or ecommerce issue, send me the store URL and a short description of what you need. I can review it and suggest the most practical approach.