Before breaking from corporate life for the second time, he was head of the Pine Street leadership development group at Goldman Sachs International, a role he took up after running his first consultancy business, collaborating with London Business School, McKinsey and Harvard Business School. Earlier, Jason was director of leadership development at BP plc, and spent almost a decade as a leadership and organisational expert at the management consultancy McKinsey and Company, counselling senior leaders globally on transformational change.