URGENT: RUBY ON RAIL PROGRAMMER NEEDED

Here are the details of development + software and modules needed to be managed

Server provider: Heroku
Server type: puma on heroku-16 on a Standard 1x dyno (512mb RAM shared)
Server Framework: Rails 4.2.6
Language: Ruby
DB: postgres (heroku postgres on standard-0 plan with daily auto backups stored with heroku)
Rails Gems that are in use: (highlighted ones are the main gems)
pg 0.15 - postgres gem
turbolinks - for faster page load
devise - user auth
activeadmin - for back admin panel
grape for APIs
paranoia for soft delete feature
jwt for login token
rmagick for image resize
aws-sdk for pushing images to s3 (s3 bucket: wiggles-family)
omniauth-facebook for FB login
jquery-rails & jquery-ui-rails for jQuery
font-awesome-rails for generic icons
bootstrap 4.0.0.alpha6 for responsive UI framework

Those that have relevant experience, please give us example on sites done on ruby