Very detailed and exhaustive vetting process, multiple meetings with a revolving cast of characters from the in house recruiter to would-be colleagues and managers. Final vetting by head of department, which in hindsight is a total personality test. If that manager did not like you, regardless of qualifications or others' opinions, you were out. Also in hindsight, there is a mismatch between title and daily work and job description and daily work. It's almost a bait and switch.