The initial step was the online application. Immediately following this, I took a personality assessment which consisted of several hundred questions. After this, there was a quick reasoning test. Fairly straightforward, just pay attention. A month or two after that, I got a call about doing a phone interview. A few weeks later, I did the phone interview and aced it - it's very typical situational leadership/personality questions. A few weeks later, I got asked to come up for a day visit. At the day visit, I was given a more rigorous IQ type test followed by a panel interview with two senior scientists. Just be sure to nerd out and don't be afraid to go into excruciating detail into what you know. After that was a drug test and that's it. An offer was made that very day before I left.