I applied online. The process took 1 day. I interviewed at HostGator.com (Austin, TX) in Jun 2011
Interview
The application process was fairly lengthy through the website, but it definitely allows them to get a good glance at who you are prior to being interviewed. I received an email the next day from the HR department with a phone number to call if I was interested in setting up an interview. I called and HR was very friendly. We setup an interview for the following week. The interview was performed by a System Administrator Shift Lead who had a few pages of questions to ask. The questions were not very difficult, although he said the questions were set up to make you fail. After going through a few pages of questions over Linux services, how to stop/start/restart them, ports and general Linux commands, he had me show him that I knew my way around a shell in a "break-fix" scenario.
I applied through a recruiter. The process took 3 days. I interviewed at HostGator.com
Interview
After an initial phone screening from HR I took another interview/test with an administrator. I SSH'd into a box they had setup and performed some steps that he told me over the phone.
The technical interview was fairly easy, especially since I could take my time and was allowed to look up any details/man pages when needed.
I applied through a staffing agency. The process took 1 week. I interviewed at HostGator.com (Austin, TX) in Nov 2012
Interview
The entire process took 1 week from initial interview to job offer. The first interview was question-based. They were looking for your experience and what your thought process was. The second part was an interactive interview, where you logged into one of their test environments and performed various commands and demonstrated various skills like searching, creating files with one command, networking terms, ports, etc. A lot of focus on CentOS, cPanel, and Linux.
Interview questions [1]
Question 1
How do you change a list of words in a file from slug format to Capitalized words? (ie police_officer to Police Officer)