Appington (funded startup) - SF Bay area, remote ok.  <a href="http://www.appington.com/jobs" >
We help add voice prompts to mobile apps.  This leads to a better user experience, increased retention, and has elements of science (measurement, analysis) as well as art (emotion, copywriting) to it.
Generalists are great as we have everything: on device code (Java/Android, ObjC/iOS), AppEngine for the servers, MongoDB, web (Bootstrap, HTML5, Jinja2, jQuery, Flask on server), and various bits in between all working together.