Customized- Backend Software+shoppingcart+3 api connections

My project details will not fit in this description. I need a custom made backend with several features including but not limited to: 1. Customer Management a. Master Dealer/Retailer b. Credit Limit & Daily Limit c. Cash/Check/ACH option d. Flexible ACH definition option. e. Transaction Discount – Fixed Amount/%Amount f. Employee Management 2. Payment Management a. ACH Master Dealer Accounts b. ACH retailers accounts on behalf of Master Dealer c. Record payment by Cash or Check d. Void payment e. Return payment with an invoice for financial charges 3. Product Management a. Multiple Product Category – Pin Wireless/Pin Phone Card/RTR/Finance Charge/Other b. Unlimited Product Definition i. Product Code/RTR Connectivity Information etc. ii. Discount Type fixed/% basis iii. Instruction Set c. Denomination/Sku Definition – Sku Id manual or automatic/Code etc d. Across the board discount changes through scheduling 4. Pricing Level/Catalog a. Ability to define multiple pricing labels. b. Ability to override pricing label per customer c. Minimum Base Price Definition 5. Vendor Management a. Rtr Vendor b. Vendor Rates/Catalogs 6. Purchase Management a. Purchase Order b. Receive Note c. Purchase Return 7. Inventory Management a. Ability to manage the central inventory b. Ability to define each master dealer its own inventory c. Ability for each master dealer to buy inventory from the central inventory on demand basis d. Ability for each master dealer to buy inventory from the central inventory on bulk basis e. Pin tracking f. Multiple vaults for managing the Pins and ability to transfer g. Reorder Levels 8. Notifications a. Ability to send notification to relevant users on defined events e.g. Pin Upload, ACH, Return Payment etc. 9. Sales Management a. Transaction would be performed by the retailer i. Terminals 1. Login Protection 2. Ability to login in the terminal application by entering password. 3. Transaction Reporting ii. Web Site iii. SMS b. RTR Top-up i. Ability to connect to TCP or Carrier’s Host system for RTR Top up ii. Adapter based Flexible architecture to connect with any third party system. iii. Availability of out of the box adapters for following Pin/Rtr providers. 10. Host-to-Host Connectivity a. In bound interfaces to connect to client point of sales platform 11. Security a. A set of Robust proprietary security features b. Some standard features are i. Role Management ii. Security Socket layer iii. Cookie encryption etc. iv. Password encryption and salting 12. Reporting a. Standard reports Solution b. Drill through and drill down capability c. Analytical Charting and Dashboard This software to be api connected to 3 companies which i have the docs for and also to [login to view URL] shopping cart via it's api. This cart also needs some custom work or java with api connection to it since it's a hosted cart.