Computer Game Level creator/designer Needed for Computer Game Ideas - repost

Please note that this is not a programming or graphic design job. The job involves designing all aspects of a computer game such as coming out with the name of the game, the storyline, characters and objects in the game, the layout of the levels, the aim of the game, scoring system, scripts for characters (if needed) etc. The task may also require you to source the graphic and sound objects for the game using stock websites. Ideally this person will have a keen interest in playing computer games, such as iphone and android games and also would possess an ios or android device and ideally a tablet. The types of games we require are the following first person shooter type games (call of duty, battlefield 4, modern combat etc) 2d platform games 3d strategy games racing games (like need for speed, real racing) sport games (flick football) flight simulator games In many instances the game already exists but we'd like the game extended, new levels added and graphics and sounds added. International applicants welcome.