The Tradebook team is very good and genuinely interested in finding out how much subject matter you know. The interviews consisted of 2 phone interviews, followed by an in-house 4 hour interview with several people. 2 on 1 interviewing style. Lots of deep C++ questions and Logic questions. Went through this successfully and was invited for final round with Group Head of Tradebook technology on another day. This Job requires a lot of ancient C & probably some Fortran baby-sitting as well. But they ask deep C++ questions and was not happy about the false advertising. Anyway, this Group Head interview went nowhere. Key points from that interview: Tells me that IBM, DoubleClick - places i worked in the past - are not as much a technology house as Bloomberg is....Kept irritating me with a 12 Coin puzzle to find counterfeit coin with 3 weighings.( i gladly did these kinds of logic puzzles in the 1st inhouse interview btw). Any person can go on the web and find the answer and parrot it. The question should have been WHY does it take 3 measurements. Anyway upshot is BEWARE if you are going in for this Tradebook Interview. It will be quite pointless and a waste of a sick day...so be warned. IMO, they want someone with around 7-10 yrs experience..If you have more and/or have changed jobs a few times dont even bother. They are scared that you will come stay for a couple of years and take that experience to some hedgefund/trading platform startup