It is a prop. trading firm. There is no real interview process, you just need to be motivated and possibly have appropriate licensing. A large of their business is trading systems support for outside trading firms but you can also work in their office as well.
Interview questions [1]
Question 1
none. Just registrations and licensing was required to get started.
I applied online. The process took 1 day. I interviewed at Quasar Trading (New York, NY) in Feb 2015
Interview
the process is very basic and simple, the trader manager will just tell you some info about what the company does and what you will do and need, series 7 is essential, he will ask you to pass it. It is not a salary based question and once get series 7, you are in.