Initially contacted by HR to see if I was interested. Upon letting them know I was interested, there was about a 1-week wait before a hiring manager contacted me.

The hiring manager asked basic questions about my resume and some basic knowledge questions. After completing the phone interview, I was contacted again by HR a week later and asked in for a formal in-person interview.

The in-person interview consisted of 3 hours meeting 5 different people: 3 hiring managers and 2 new hires. Each hiring manager was director of a different department and all asked different questions on different technical topics. The new hires gave me the basics about the company, how it was to work there, and asked me some general/personality questions.

Upon completion of the in-person interview, I got a call 3 weeks later with a formal offer, which I accepted. After accepting the offer, I got an e-mail with all of the things I needed to do:

• Drug test
• Background checks
• International background check
• Credit check

The background check is incredibly thorough and you better make sure you have phone numbers for any reference or school you put down. They check everything on your resume for legitimacy. I passed this process, which took a month and a half, and was hired in June. Total time from interview to hire was about 60 days.

Of all the layers of the OSI model, are they all required? Could you make a model with less layers?