"Our business uses backend an ERP/ CRM tool, can we integrate with this?"
Since we've worked with ERP and CRM solutions, integrating eCommerce websites via REST API's for products sync., customers, inventory, order data and more. Basically integration synchronize data automatically from the website to your internal system. When updates are made to a customer or order, for example an order status is changed to "shipped", your ERP or CRM can communicate back with the website and update the website data.
"Do you have eCommerce SEO and conversion optimization services?"
CodeIgniter framework uses a segment-based approach, whcih allows you to customize URLS using configuration as SEO friendly URLs drive more traffic on your website. Marketing your products or service online is just as important as the website itself.