Our Product has the following features:
Admin site, Mobile application (iOS & Android), R language for analytics
1) Site for admin to upload the product category like automobile, job, real-estate.
2) Create Network - friends/followers
3) Review posts - view of product reviews posted by user
4) News feed - view of product reviews posted by friends/network
5) Recommendations feed - recommendation engine based on previous purchase data, purchase patterns of peers etc.
6) Ratings for recommendations, perks for users with higher ratings etc.
Need R-language: for ease of data analytics
Please bid who is more familiar in same kind of product, You can choose what ever development language for webservices to mobile.