I applied through a recruiter. The process took 6 weeks. I interviewed at Quantcast (San Francisco, CA) in Jul 2013
Interview
3 phone interviews (1 technical) and onsite interviews with 5 rounds of interviewers from managers to directors. A final behavioral interview with an hr rep completed the process. Questions varied from 'Why do you want to work for Quantcast" to "How would you solve this current problem we have?". Started with lunch and meeting a member of the department I would be in and transitioned into either 1:1 or 2:1 interviewing. Three of my interviewers asked generic algorithm questions that I had to write solutions for on a white board with them.
Interview questions [2]
Question 1
Write a function (in any language) that you can pass n and run a factorial (i.e. n!)
In a tree structure of parent/child nodes, with 2 starting points, while "walking" up the tree, how would you programmatically determine the lowest common denominator node? You cannot determine a whether a parent node has a child or how many children it has.
