I applied online. The process took 4 weeks. I interviewed at Lab49 (New York, NY) in Apr 2008
Interview
The process is extremely tough.
1. A testing the waters interview, where someone will fire away really tough CS and <Your Language choice> questions.
2. Round 2 is a little high level, but still going through tough tech questions.
3. If you are from out of state, then there is a web cam interview. They are just making sure here, that you are worth their time and money
4. If you made it this far, there is a 10% chance that you will be hired, yes, 10%, They tech you out, check your personality throw design questions at you. Even if you don't get the offer, you have definitely learnt something about your trade here.
Interview questions [1]
Question 1
Design a real time trading system's messaging system.