Personal Mobility Prototype Development

I am planning a brand-new mobility device aimed at personal transportation—think along the lines of an electric scooter, but potentially lighter, smarter, and easier to live with. To get there I need an electrical engineer who can take the idea from blank page to fully tested working prototype... (Budget: $250 - $750 USD, Jobs: Electrical Engineering, Electronics, Embedded Systems, Firmware Development, MATLAB, Mechanical Engineering, Microcontroller, Motor Control, PCB Layout, Rapid Prototyping)