Advanced Geo local Marketplace Specs writing

Our Startup is working on an advanced local collaborative/marketplace delivery service for local shops and we are looking for an IT web and mobile expert to help us details specs for the geo eCommerce web/mobile platform. We can supply core workflows, design and screens. Core functionalities of the platform : Main Users : - local stores (supply items) - local customers - local independent drivers (deliver items from stores to local customers) - local region managers (manage local offering / support) Core features (more details to be supplied once bid submitted in PMB) : - global/local shop depending on zip code (each zipcode = different store) - local ecommerce for local store - items shown based on availability and real time delivery schedule - optimize Geo route for drivers (pick up / delivery tracking) - Mobile (ios / android) apps for drivers/customers/stores - delivery fees depending on user subscriptions - flexible advertising (items ranking, mobile notifications, smart newsletter, etc.) - Hiring/scheduling platform for drivers (enough drivers when needed) - Advanced sms / mobile notifications - Voip dispatch platform - Advanced admin panels for shops, drivers, customers - Help desk see post#mates or insta#cart or grub#hub or Amazon#local for benchmark examples of similar local delivery marketplace services We are looking for an expert project manager interested in the challenge and a long term potential and that can help : - Validate specs and architecture - identify / integrate use existing code modules - develop a demo/beta platform under 2 months with external resources : - coordinate code development by development team Please do not apply if no proven documented experience in advanced geo / e commerce / collaborative / marketplaces