Originally a recruitment entrepreneur, Zena sold her business in 2007 and then pursued a Master of Science in Career Management and Coaching. She also obtained additional postgraduate qualifications in psychological coaching and leadership with neuroscience from MIT Sloan Business School. Zena has coached on the Executive MBA Programme at Oxford University's Saïd Business School and is a member of the Associate Faculty at Henley Business School. She designs and conducts bespoke, engaging leadership programs for aspiring businesses that aim to enhance accountability and productivity.

Zena is a regular keynote speaker on topics such as crazy busyness and leadership, presenting at events for the London Business Forum, Ireland's Executive Institute, and at various corporate conferences and away days. She splits her time between London and Ireland.