Ann Arbor, MI, Alfa Jango.
We build startups and work on a lot of open-source and internal projects. We act as CTO and development team for hire for early-stage startups, giving guidance, advice, and actually building their startup. We have some pretty cool new projects we're getting ready to release as well.
We work primarily with Ruby and JavaScript, but use other things as we see fit.
<a href="http://www.alfajango.com/hiring" >
Also, check out our open source work <a href="http://os.alfajango.com" >
We don't mind remote, but we're a small team of 4 looking to become a small team of 5, so local to Ann Arbor helps us build a stronger company and team culture at our early stage. Email REDACTED_EMAIL if you're interested.