I worked with Jonathan on security review project over a four month period. He demonstrate excellent technical knowledge but, while at the same time fully understanding the business implications of the solution options he recommended. A real practitioner that understands “applied” security over “theoretical” consultancy. Very conscientious and approachable. He readily offers advice and guidance and challenges when required. A diligent professional that has a core ability to communicate detailed understanding from directors to graduates. Jonathan is able to work clearly and concisely at an individual level and collaboratively with others. He made a significant contribution to the team and it was a pleasure to work with him.