develop a web application (RoR)

Need to create an analytics SaaS platform, providing pre-built dashboards to customer analysis from an end-to-end perspective, need to be multi-tenant and integrate with the data-sources below: - acquisition (google analytics, adwords, facebook [including ads], instagram [including ads], twitter [including ads], linkedin [including ads], email marketing) - track purchase and delivery status (integration with e-commerce: woocommerce, magento, shopify; should also support CRM and a custom API) - financial data: ERP, accounting solutions (quickbooks) and a custom API Also, the platform must: - create custom events (range or point in time) to show on reports - create custom metrics using information for all data-sources, calculation is needed - for instance, revenue for delivered product (e-commerce) divided by visitors (from google analytics) - include an admin panel allowing to view the customers and create pre-built metrics and dashboards that will be available to all users - users will be able to create their own metrics and dashboards Some other tools that do parts of it: [login to view URL], [login to view URL], [login to view URL], [login to view URL], [login to view URL]