PC game designer needed around Essex / London area

Hi, I am looking for a designer to bring my game to life, starting with a prototype / preview for the game. The game will be for PC and at a later date on consoles and cross platform later on. I am looking for someone around the Essex / London area to work side by side in making this prototype and game and it would be 5 days a week at the head office. When I say long term, I am looking at 10 years full time work plus with 2 additional / DLC add ons that will be like the same game but in a different era, ie: we will be starting in Ancient and Medieval times, then using the same engine and game style there will be WW2 and modern warfare. The skins potential for this game are tremendous and will help the game grow nicely. Looking forward to hearing from you James