Our engineers are responsible for building a system capable of analyzing the energy use of more than 20 million households. They're adept at using a variety of tools—from Java, Ruby, Scala, and jQuery to HTML5 and CSS3. And through our Agile development process, they're able to deliver a new version of our platform every three weeks! What's best about this team is its depth: it includes both front-end and back-end engineers and QA, all working in unison to deliver innovative features that scale for millions of people.