Company: ClassDojo (<a href="http://www.classdojo.com" >)
Location: San Francisco
About Us: We're a small team of ~20 people (10 engineers) making one of the world's most popular education apps.  Help  make classrooms happier and more positive with engaged parents and students, and get handwritten fan mail from teachers and students every day on account of your impact.  We value collaboration, joint ownership of product, and high test coverage.
Roles:
- Senior Backend Engineer: expand our service-oriented architecture to help us scale to tens of millions of active users. Work in node.js with some Go on the horizon.
- Lead Android Engineer: take charge of our app which, each September, is in the top 50 worldwide.
Contact: email me at peter [at] classdojo [dot] com or visit <a href="http://www.classdojo.com/jobs" >.  Check out our engineering blog as well at <a href="http://engineering.classdojo.com/" >
Ask HN: Who is hiring? (March 2015)