DDos Protection - Complete System - open to bidding

Hey, i have looked a long time trough freelancer as i find you. What i liked was the part of networksecurity and so on. I´m searching sb who are able to code a complete reverse proxy system for a ddos protection. At the End all should be automatic I should only add Servers into the system. More Servers into the system = more protection. I don´t know whats the right price for that. Please discuss with me. Sorry for my bad english ;) Best regards.