Growth Hacker / Marketing Manager

My company is launching a mobile communications app. Looking for a marketing manager / growth hacker, that can put together a proper marketing launch plan, for launch and first 2 or 3 months of growth. Call yourself whatever, but basically your job is to drive downloads and growth, and if in any way possible encourage virality both through free and paid methods. Experience is a must with actionable results. EUROPEAN AND NORTH AMERICAN CANDIDATES ONLY