We're looking for a senior engineer experienced with the full web stack—someone who has owned production apps for many years, and loves solving user-facing product problems. As a senior engineer at Mystery.org you’ll work on all areas of the app, from front-end changes that millions of children will see, to scaling issues, to internal tools that automate our business. Engineers have a seat at the table for all decisions in the company. You’ll work alongside a strong engineering team that obsesses over customer feedback and is constantly iterating to improve based on what we hear. We release multiple updates to our website every day and implement new features days after conceiving of them. Our current stack is postgres-heroku-rails.