Three decades in avionics, engineering education, and airline training.

Bernard Irungu was enlisted in the Kenya Air Force in April 1990 for basic military training, and later studied Avionics Systems — Telecommunication Engineering at the Kenya Armed Forces Technical College (KAFTEC), now the Defence Forces Technical College (DEFTEC).

After three years of theoretical and practical study (1991–1993), he completed On-Job Training and Field Training Detachment at Moi Air Base, Eastleigh, in the Avionics Maintenance Squadron and Radio Workshop, gaining hands-on experience with radio communication and navigation systems, before a further attachment at Laikipia Air Base (1994–1995).

He returned to KAFTEC for advanced engineering training and graduated as a Radio Technician with a Diploma in Telecommunication Engineering, then went on to earn a Higher Diploma in Electrical Engineering (Telecommunication Engineering option) at Kenya Polytechnic — now the Technical University of Kenya — and later a BSc. in Electrical and Electronics Engineering from Jomo Kenyatta University of Agriculture and Technology (JKUAT), graduating with second-class honours.

Alongside teaching — first at JKUAT, then as Associate Faculty at Mount Kenya University — he moved into circuit design and innovation, co-developing three patented systems with JKUAT. In November 2017 his passion for aviation led him to Kenya Airways, where he serves as a Technical Instructor specialising in Electrical and Avionics systems.