Experience with Staffmark? Have an interview scheduled for an EHS position

Hello! I'm graduating at the end of this week, and I found this "temp to hire" EHS position through Staffmark. This is my first experience with a staffing company, and I have a phone interview scheduled next week.

I just wanted some insight as to what to expect and how to prepare for getting involved with a staffing agency, what the interview is like, what "temp to hire" actually means, and any specific experiences anyone can share with Staffmark in particular. Thank you!

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