All you veterans of office jobs know that a typical recruitment event involves three stages: resumes, written tests, and interviews.
Depending on the size of the company, there could also be multiple rounds of interviews, which are especially grueling during campus recruitment.
First, there's a leaderless group discussion, followed by interviews with a supervisor, a director, the boss, and finally, with HR.
However, recruitment for experienced hires is different as it seeks "needed talent," so the process is much simpler; often, they can make a final decision on the same day without the need for multiple interviews.
Small companies tend to be more casual; it's all about the vibe. If the basic qualifications are met and the conversation flows well, and if the abilities are up to par, then that's it—so there is no complex interview process. Usually, the supervisor's interview, the boss's interview, and the HR interview are rolled into one.