Above all, I'm a professional and .NET certified.
I understand your need and I already did tools before in Betfair.
I usually work as a gambler, but in another market: football.
I lost my last bot because I took a virus, but I had the following tools: a ladder, a scalping and a customize bot to me and my father (a casual gambler).
I'm really exciting to do this tool for you, because I love Betfair and programming.
I hope you choose the best programmer who understand Betfair and to avoid any problem in future.
Best regards,
Jorge Silva