Fix slow WooCommerce stores by optimizing database queries, clearing transients, enabling Redis object caching, and configuring page caching

Customize WooCommerce checkout and cart pages using Gutenberg blocks with server-side rendering, slot-fills, and extensibility hooks

Register, verify, and reliably process Shopify webhook events for orders, inventory, and customers with HMAC validation and idempotency handling

Build and customize Shopify themes using Liquid templating, JSON sections, dynamic blocks, and theme app extensions for added functionality

Build a headless Shopify frontend using the GraphQL Storefront API for product queries, cart management, and checkout with the Buy SDK

Store custom data on any Shopify resource — products, orders, customers — using typed metafield definitions accessible from Liquid and the Storefront API

Customize Shopify's checkout with UI extensions for upsells and custom fields, plus Shopify Functions for serverless discount and shipping logic

Integrate with Salesforce Commerce Cloud's headless APIs (OCAPI and Shopper APIs) to build custom storefronts and mobile commerce experiences

Build SFRA-based Salesforce Commerce Cloud cartridges with controllers, ISML templates, and hooks to customize storefront behavior

Configure Salesforce Commerce Cloud via Business Manager — manage catalogs, promotions, site preferences, and run XML import/export jobs

Configure multiple websites and store views in Magento with shared or scoped catalogs, separate URL structures, and store-specific settings

Build custom Magento 2 modules using dependency injection, plugins, observers, and service contracts to extend core functionality cleanly

Speed up Magento by managing indexers correctly, configuring Varnish full-page cache, and using Redis for session and object caching

Query Magento's GraphQL API to build headless storefronts or PWA Studio frontends with products, cart, checkout, and customer operations

Automate multi-jurisdiction sales tax, VAT, and GST compliance with nexus tracking, exemption certificates, filing automation, and audit-ready reports

Calculate accurate sales tax and VAT at checkout using TaxJar or Avalara, with nexus management for multi-state and international compliance

Sell recurring subscriptions with automated billing, dunning emails for failed payments, plan upgrade/downgrade prorations, and self-serve cancellation

Build secure payment flows with Stripe — Payment Intents, subscription billing, webhook handling, and European SCA compliance for card payments

Add PayPal, Venmo, and Pay Later buttons to your store using the PayPal Commerce Platform SDK with Express Checkout for one-tap buying

Manage complex payout splits for marketplaces and platforms with seller disbursements, commission calculation, tax withholding, and 1099 reporting

Configure flexible payment terms for B2B customers with net-30/60/90 options, early payment discounts, credit limit management, and automated collections

Automate payment reconciliation across Stripe, PayPal, and bank accounts with exception handling, automated matching rules, and discrepancy alerting

Implement a reliable order state machine that moves orders from pending through payment, fulfillment, and delivery with webhook-driven transitions

Let international shoppers browse and pay in their local currency with automatic detection, live exchange rates, and locale-specific price formatting