On GC in engineering Jul 19, 2013 21:13:10 GMT Select PostDeselect PostLink to PostBack to Top Post by vpainter on Jul 19, 2013 21:13:10 GMT There are 3 tiers professionally in Aramco ... GC11-14 (PE IV, PE III, PE II, PE I) GC15-17 (PE Specialist, PE Consultant and PE Senior Consultant), GC18-20 (Principle PE)