Herman was in the South African Air Force for 26 years during which time he acquired Radiography Testing (RT) Level II, Ultrasonic Testing (UT) Level II, Electromagnetic Testing (ET) Level II, Magnetic Particle (MT) Level II, Penetrant Testing (PT) Level II. In 2012 he added the ASNT NDT Level III Certification in Penetrant Testing (PT) and Magnetic Particle (MT).

He worked for H. Rohloff as Product Manager from February 2014 to February 2015 and has since been lecturing at SANDE in March 2015.