Bloomberg - New York, NY and Washington DC - Full Time Ruby on Rails related dev jobs (I'm not from Bloomberg, just noticed it on their careers site)
<a href="http://jobs.bloomberg.com/search?q=ruby&#38;location=" >http://jobs.bloomberg.com/search?q=ruby&#38;location=</a>
(the dates indicate when the job was posted)
Ruby on Rails Developer - Bloomberg Institute Job	New York, NY, US	
Dec 14, 2012
Ruby on Rails Developer Job	Washington, DC, US	
Dec 27, 2012
Ruby on Rails Developer Job	New York, NY, US	
Dec 23, 2012
Bloomberg Government - Web Developer Internship Job	Washington, DC, US	
Jan 8, 2013
Web Front-End Software Engineer Job	New York, NY, US	
Dec 6, 2012
Senior Web Developer - Consumer Websites Job	New York, NY, US	
Dec 23, 2012
Senior Java Developer Job	New York, NY, US	
Dec 23, 2012
Senior Web Developer - Businessweek Job	New York, NY, US	
Dec 8, 2012
Senior Cloud Builder Job	New York, NY, US	
Dec 2, 2012
Web Infrastructure Architect Job	New York, NY, US	
Dec 29, 2012
Senior Software Engineer - Data Visualization Job	New York, NY, US	
Dec 5, 2012
Reliability Engineer - CTO Office Job	New York, NY, US	
Jan 24, 2013
Ask HN: Who is hiring? (February 2013)