Cue (<a href="http://www.cueup.com" >http://www.cueup.com</a>), San Francisco, full time + interns
At Cue we connect our users with the right piece of information at the right time by understanding and correlating related data from across their email, contacts, calendar, files, and social streams.
This is a really hard problem with real world impact.  Our software processes billions of documents in real time, extracts semantics from text, and searches across disparate document sets and document types.  I also honestly believe our product has the opportunity to change the world by making everyone in it more productive.  We've built everything with a team of only 12: 10 eng, 1 designer, 1 everything else.
We're hiring all manner of engineers and engineering interns - generalists, devops, iOS, Android, NLP, ML.   We primarily use Python, Java, JavaScript, and Objective-C but we always love to talk to people with great general skills over specific knowledge.
Open source projects: <a href="https://github.com/Cue" >https://github.com/Cue</a>
Tech blog: <a href="http://tech.cueup.com/" >http://tech.cueup.com/</a>
Jobs page: <a href="https://www.cueup.com/jobs" >https://www.cueup.com/jobs</a>
Apply to: jobs+REDACTED_EMAIL
Ask HN: Who is hiring? (April 2013)