I applied through an employee referral. The process took 1 week. I interviewed at Undertone (San Francisco, CA) in Feb 2012
Interview
First online test was sent by the HR. It's pretty easy and then I got the onsite interview. The onsite interview consisted of a behavior talk with the CTO, an online test, and three technical interviews. The online test was a really bad experience. I was told before the onsite that the online test would be similar as the one I took before. But actually they were totally different.... And some of the questions were wrong. The technical interview was not hard, but I made stupid mistakes.
The interview process goes smoothly. The interviewers are friendly and will give you enough time to think of the solution. Communication is more important than tech questions I observed. It's a good try for entry-level software engineers.
I interviewed at Undertone (New York, NY) in Aug 2016
Interview
Interviewed by the HR representative on the phone, then in person by two hiring managers; very friendly and informal interview.
Time passed without any feedback. Dead silence from their side. For this reason, my feedback is negative.
Interview questions [1]
Question 1
What are you currently working on? What did you work on?
I applied through a recruiter. The process took 3 weeks. I interviewed at Undertone
Interview
1 online test about sql, c, java, 2 phone interviews and 1:1 onsite(including another c/c++ fundamentals test including 60 choice questions). For the onsite I have to say, two interviewers didn't come up when I drove two hours there.