I am a co-founder and software engineer at Buttercloud. We build large custom web applications for clients world-wide. I started my career in .NET (C# & VB.NET) however have been using Ruby on Rails for 7+ years. I would consider myself a full-stack engineer dealing with HTML, CSS, JS, RoR, MySQL, Postgres on a daily basis. I occasionally and increasingly work with MongoDB and Clojure(Script).