Chartbeat is hiring in NYC (Meatpacking District). H1B possible.
We're a real-time analytics platform focused on providing data to the people on the front line (people who can take immediate action), rather than the analysts in the back office. Our stack is Python (django/tornado), C, MongoDB, and Google Closure for our JavaScript needs. Hiring engineers,  designers, support, sales... Pretty much everything.
<a href="http://chartbeat.com/jobs/" >http://chartbeat.com/jobs/</a>