I applied online. The process took 3 weeks. I interviewed at 5thColumn (Chicago, IL) in Jan 2016
Interview
I was hired not long ago and was unsure what to expect coming into an organization such as 5thColumn. I was contacted within 4 hours of applying, however it was almost 2 weeks before I got an interview scheduled. I can say now that the headaches you may go through while interviewing here are well worth it. Everyone is extremely high output and the dead weight that was hanging around has been dealt with or left (huge relief). Simply put, you don't have the kind of success 5C has without world class leadership. Anyone who doesn't get our methods or leadership just doesn't get it; period.
Interview questions [1]
Question 1
I was asked very specific questions regarding BGP through a firewall (troubleshooting skills) as well as a paper quiz of 25 written network questions. In my second onsite interview I was required to configure 4 devices in a 20 device topology with rate limiting, QoS, and WCCP.