John Koellner

John Koellner is a seasoned professional with extensive experience in program and project management, particularly within the telecommunications sector at Telstra, where tenure spans from November 2010 to the present. As a Client Delivery Executive, John leads a significant team to deliver professional services to strategic enterprise customers, and previously managed the Department of Defence Transformation Program and key corporate and government programs. Additionally, John is the Director and owner of ROSMITCH P/L and served as Client Manager and Director at HR Help Australia, where John established a human resources business. Earlier roles include Customer Transformation Program Executive at Mercury Group, and various management positions at Telstra, where responsibilities included oversight of a large workforce and budget. John holds an MBA in Corporate Strategic Leadership from the Australian Graduate School of Management and a degree in Business Management from the University of Wollongong.