Please do not bid unless you can do the job.
Nginx needs to be configured to act as reverse proxy with socat. This is for ddos protection on a tor hidden service .onion website.
https://tor.stackexchange.com/questions/13792/how-can-i-nginx-reverse-proxy-to-onion-site-which-is-on-tor-network/13884
Good knowledge of Nginx, Socat and Tor
pm me for details