To join the FlightSafety team as a pilot ground and simulator instructor you must have:

Airline Transport Pilot Certificate (ATP) if teaching on a type rating aircraft.
A total pilot time of 2,000 hours or more is preferred.
Commercial Pilot Certificate with Instrument Rating if teaching on an aircraft not requiring a type rating.
A total pilot time of 1,000 hours or more is preferred.
Certified Flight Instructor (CFI) rating or Ground Instructor Certificate (AGI) with an Instrument rating or prior experience.
Acceptable prior experience includes military pilot instructor or pilot instructor in a Part 142, 135 or 121 operations.
Medical Certificate is not required unless teaching in the actual aircraft.