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Matt Greensmith

Infrastructure and systems-focused software engineer and cloud architect.

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Coding Challenge

Take the Challenge!


  1. Mike Darke (@mikedarke) - September 30th, 2015
  2. Jake Jervey - June 30th, 2021


The SaaS QA company Rainforest used to use a little coding challenge (still available at as an initial hiring filter for technical candidates. They provided a secret application email address at the end of the challenge.

I enjoyed their little test so much that I was inspired to create my own little coding challenge/puzzle. Solve the puzzle and have your name immortalized on the leaderboard for eternity!