Hi there!
I am 35 years old, I have more than 10 years of real professional experience as a network engineer, I have been working with many wireless internet service providers in Belgium, France, Armenia, Brazil..
My first mikrotik implementation with freeradius was 10 years ago, with mikrotik version 2.9.x
What more to say, this is my field..but I am curious what do you need to be done?
Mikrotik already supports freeradius very well for authentication, accounting etc..with all the available attributes, session time, simultaneous use, rate limits..
I am available right now and for the next 20 hours, you can contact me on skype: protojob or right here on freelancer, if needed I am also available on gtalk (google hangouts) and I am really looking forward to know more about your project, even if you don't choose me for helping you, I would like to know more!
Thank you, I wish you success