I work for LIFX, building fancy lights you can control from your phone.
I previously worked for Spree Commerce.
I'm writing a book called Debugging Ruby that walks through common mistakes that people can make in Ruby and Rails code.
I've written an advanced book about Rails that costs only $25.00. Multitenancy with Rails teaches you how to build a multi-tenant application with Rails. Buy it now.
I've also written Rails 3 in Action, 1st Edition.
Steve Klabnik has written the sequel: Rails 4 in Action.
You can pair with me at Airpair.
For way too much more info about me: http://ryanbigg.com/about-me/