I applied through university. The process took 1 day. I interviewed at D. E. Shaw & Co. - Investment Firm in Jan 2007
Interview
The interviewers were really respectful, and made me feel comfortable the moment I entered the interview room. Mostly the questions were asked from Areas of interest Operating system, OOps , DBMS etc. Almost answered all their questions correctly. Then a few questions regarding my Final year project. Later they described their experience at Shaw.