I think he works for github: https://ruby-on-wheels.github.io/blog/leaving-berlin/

I still haven't found the time to write a little "About" section. @sampl is right, I work as a full-time employee for GitHub. Meanwhile you can read a short summary on my unmaintained developer blog: http://mikrobi.github.io/about/ :D

I'm completely unaffiliated with, but would recommend: https://remoteok.io/

He is an intelligent investor now : D