I have been working at Fresenius full-time (More than 5 years)
Nice people to work with, job is not too demanding
Not much room for advancement, not very much vacation time, pay is so-so not top of the market. Nice if you're top management, rest can come and go.
Advice to Management
You've got some dedicated and hard working staff, treat them well with advancement etc and you'll keep them .
I applied through a recruiter. I interviewed at Fresenius.
Was interviewed by 2 managers, reviewed by resume asked me questions about my resume and asked some scenario questions. They were friendly and explained the job duties and talked about the company, they are productivity based.