See their website for licence / experience / ratings, requirements.
Home - Zimex Aviation Ltd..
A JAA licence - CPL /IR and a rating on one of their types is a must, again the website is specific.
As one who worked for the above company for some 13 years before the dreaded 65 caught up, I can truthfully say that in my aviation career spanning some 40 years, they were the best company I had the pleasure of working with.
I started out as a Pilatus Porter jockey working in Libya, moving onto the Twin Otter, Resident Ops Manager - Yemen, Flight Ops Manager - Ad Interim - on 2 occasions, Chief Pilot HQ, then Project Chief Pilot - Angola. Worked in Burma, Sudan, Dubai, Algeria, Mozambique etc. finished up in Training Dept.
Good luck with your application,
Regards,
Elroi Ambrose, AKA, elzimex.