Chief Executive Officer - Mark Irwin

Mark has extensive international experience in business and operational management. He was appointed CEO in 2013.

Prior to joining Serco, Mark was COO for the China National Bluestar Company where he was responsible for leading the operations of subsidiary companies in the group's $8 billion portfolio, as well as providing leadership on strategic planning, M&A and other capital market transactions. Prior to living in China, Mark spent 8 years in the U.S. working for multinational companies including General Electric. 

Mark's formal education stems from Business and Applied Science and includes a Master of Business Administration from the University of Technology, Victoria.


Citizen Services, Managing Director - Peter Welling

Peter has extensive experience in the public and private sectors delivering citizen services, customer relations, and transformational management with a commercial focus. Peter has held director-level positions with VicRoads and Service SA, the public facing Business Process Outsourcer (BPO) for the South Australian Government.

Peter holds a Masters of Business Administration from the University of South Australia. He joined the Serco leadership team in 2015.


Justice and Immigration Services, Managing Director - Heath Chapple

Heath joined Serco in 2011, and served four years as Managing Director of Immigration and Facility Services before being appointed to his current position. Prior to joining Serco, Heath was Chief Operating Officer for Sodexo Australia and New Zealand, and Chief Executive Officer of Serco Sodexo Defence Services. He has more than twenty years’ experience in senior management positions in medium to large companies at joint ventures and multinational corporations.

Heath brings to the role a strong commercial background and capacity to build effective management teams.


Health, Managing Director - Patricia Collocott

Trish joined Serco in May 2016 and brings extensive experience in health, having held senior roles in both the public and private sectors. Trish has a particular interest in developing partnerships to improve outcomes in the health care system. Her most recent position was Chief Executive Officer of a rural health service in Victoria providing primary, acute, aged care and home based services.


Hong Kong, Managing Director - John Hesketh

John Hesketh joined Serco in May 2017 with more than 25 years’ experience in engineering, construction and maintenance services. His experience includes project management of major construction projects, initially in the UK and then in Hong Kong on the transport links to Hong Kong’s international airport. Also in Hong Kong, John led the engineering solution for the winning bid for the first Management Operation Maintenance for the Tsing Ma Control Area comprising three long-span bridges and highway and tunnel infrastructure. John moved to Australia in 2001 where he was instrumental in the establishment and successful growth of Leighton Contractors’ transport O&M and facilities management businesses gaining extensive experience in outsourcing and public private partnerships.

John has an MBA from Henley Management College and a first class honours degree in Civil and Structural Engineering from the University of Bradford.


Director, Sales and Bids - Sheela Maji

Sheela joined Serco in 2015. Working with the Sector Managing Directors, she is focussed on driving profitable growth and sales effectiveness. Sheela brings over 17 years’ experience in outsourcing services sales across Asia Pacific region, with global organisations including Hewlett-Packard and Electronic Data Systems (EDS). She is an alumni of the Australian Graduate School of Management (UNSW) and University of Calcutta.


Chief Technology Officer - Tony Yortis

Tony has over 20 years’ experience in information technology management and consulting, with expertise in transformational change and business process improvement. Prior to joining Serco in 2014, Tony held senior positions with Sinclair Knight Merz, Coates Hire and Lion Nathan.

Tony holds a Master of Commerce from the University of New South Wales and a Bachelor of Electrical Engineering from the University of Wollongong.


General Counsel and Company Secretary - Robert Lantz

Robert has 10 years’ experience with Serco. He joined the Asia Pacific leadership team in January 2015 from Serco Group Plc, where he served as the first UK General Counsel for the UK & Europe Division. Prior to moving to the UK, Robert held the position of Vice President, Associate General Counsel and Assistant Secretary of Serco Americas.