Livestock game management system

Hello, we are looking for an experienced programmer to develop a livestock game management system for us. The system must have Breeding Management capabilities, as well as Inventory Tracking, Financial Analysis, and support for both Windows and Mac platforms. We anticipate that we will need to accommodate up to 200 users at once, so scalability is also necessary. We would greatly appreciate your assistance in developing this system. Thank you for your time and we look forward to working with you.