The more experience you are the more easier the interview is. Good manager can tell if you know what you're talking about. And if they're interested in you, it will probably take less than three day to get in touch with you about working with the company. Once hired, you go through normal process such as clearance if needed, take picture for badge in order to participate for orientation. Once you're done, your manager comes and take you and present you to your new group. From then on, training takes places and get familiar to the process because every job is different.