Pittsburgh PA: invivodata
<a href="http://www.invivodata.com/aboutus/careers/product-development-software-developer/" >http://www.invivodata.com/aboutus/careers/product-developmen...</a>
The Products group is small (just three devs in PGH, plus four in Santa Cruz), and we do a mix of web and device/mobile work.  We are mostly a .NET/C# shop, but my current project is heavy on the Javascript.