Nell Shamrell-Harrington is a Software Development Engineer at Chef and and a core maintainer of the Supermarket and Habitat open source projects. She also sits on the advisory board for the University of Washington Certificates in Ruby Programming and DevOps. She specializes in Open Source, Chef, Ruby, Rails, Regular Expressions, and Test Driven Development and has traveled the world speaking on these topics. Prior to entering the world of software development, she studied and worked in the field of theatre.