We need an expert that has extensively implemented IP address blocking on busy web sites. You must be an expert in using built in operating system tools (IPTables, Ip Filters etc) open source.
-Familiarity with 3rd party products like Scrape Defender, Distil, etc. that block IP addresses.
-Knowledge of why IP address blocking is needed.
-Knowledge using APIs that automatically setup blocking.
-Know and explain the traffic reduction risks of over blocking.