The requirements are finished, and the next step is to find the good person / team to finalize the final architecture.
Main skills are as below :
Front-end: HAML, SASS, Coffee Script, HTML 5, CSS 3, JQuery, Angular.JS, etc.
Back-end: Ruby on Rails (Rails 4.1)
Database: Mongodb via Mongoid 2.4.x or PostgreSQL 9.3
Testing Frameworks: Rspec, Capybara...
Skills: html, postgresql programming, ruby on rails