01
SSL Certificates, PCI-DSS Compliance, Two-Factor Authentication (2FA), Data Encryption
02
PayPal, Stripe, Square, Authorize.net, Razorpay, Braintree, PayTM etc…
03
Shopify, WooCommerce, Magento, BigCommerce, OpenCart, PrestaShop
04
RESTful APIs, GraphQL, Payment Gateway Integration, Social Media Integration, ERP Integration, CRM Integration (Salesforce, HubSpot), Inventory Management Tools