* Expert in Ruby on Rails, having 7+ years of experience. I started with Rails 1.2.6 and currently working on Rails 4 version.* I have worked on different domains like E-commerce, Social networking, Video Streaming, Healthcare and telecommunication.* Extensive experience in build REST API in rails to communicate with mobile application. Use jbuilder, JSON and rabl to render response.* Extensive experience in integration Social networking sites with Rails application like Facebook, Google, Instagram, Twitter, Amazon and Linkedin, * Extensive experience in Facebook Graph and Twitter Streaming API.* Experience in Amazon service for application deployment and data storage like EC2, Elastic Beanstalk and S3 storage.* Experience in Payment Integration Paypal, Braintree and Stripe. * Experience in Paypal Integration which includes Paypal Express, Paypal Pro, Paypal IPN, Refund amount process and Recurring Payment.* Experience in Braintree Integration which includes Create Customer, Create Customer wallet, Create merchant and sub merchant account, held amount in escrow, release payment from escrow, refund payment to payer from escrow. * Excellent knowledge in mySql, Postgres, Oracle and Sqlite.* Working with Javascript such as Prototype, Jquery and ExtJs* Working with Javascript framework like AngularJS* Experience in writing test cases with Rspec and FactoryGirls.* Experience in migrating application from other technology to Ruby on Rails and upgrading rails with keeping same requirements.* Ability to handle team of 5-10 team.* Working with Git and Bitbucket to manage code with Team.