SAP Instant Bidding Tool Development

I need a small Windows-based utility that log into the my Server (SAP) freight tender portal, waits for a chosen contract to open, and fires our pre-calculated bid the very first millisecond the system allows it... (Budget: ₹12500 - ₹37500 INR, Jobs: .NET, API, Automation, C# Programming, Java, PHP, Python, SAP, Selenium, Software Architecture)