In the past I've worked for Facebook where I was team lead on the Messenger Visual Messaging team, Eventbrite where I was in charge of the Android then iOS teams, Dopplr [acquired], where I wrote server stuff in Ruby, Fotango [defunct], where I wrote in Perl, Nokia Berlin [still there, sort of], where I wrote in Java and went to meetings, and Lanyrd [acquired], where I wrote iPhone apps, did server-side Python stuff, and made tea.
The usual/best way to get hold of me is my email address, firstname.lastname@example.org, and you can see my resume here. (I'm not looking for work. It's just there for reference.) I'm also on Twitter, Instagram, LinkedIn, Facebook, etc. You know. The internet.