Required software development,Website Development freelancer for Proxy script job

Need a script that do the following things:
On a server with X subnet, we need to give to a costumer X proxies, but that have to be random from the subnet pool, choosing like 10 proxies for a subnet, 10 from another.
After that proxies are choose, the script have to set a specific auth for the choosen proxies.
For example: Random port, random user and random psw.
All this proxies have to be printed in a txt file.
When script start, it have to ask if i want to auth proxies that are already authorizated.
If possible, that auth have to be an expiration.

Skills & Expertise Required

software development Website Development