After leaving a career as a mechanical and electrical engineer in 1998, Mark started out with a fresh career as an IT trainer. Spending the first few years as an applications trainer, Mark excelled in delivering Microsoft Office and Adobe products. In line with his background as an engineer, Mark soon shifted focus to more technical deliveries, including hardware and networking topics, a field he has remained in ever since.

As a natural progression of his career, Mark started to explore the security aspect of his existing competencies and since 2005 has specialised in the cyber security domain. Mark has been the author of a number of QA cyber security courses and was the design authority and author of the 2017 NCSC Cyber First Academy. Mark is a C|EH, a Certified EC-Council Instructor, and a CISSP.