Westpac has announced the appointment of McMullan as chief data, digital and AI officer, reporting to chief executive officer Anthony Miller.
McMullan has joined Westpac from a big four competitor - Commonwealth Bank of Australia (CBA) - where he most recently served as chief data and analytics officer. He is set to join the major bank in September 2025.
In this new role, McMullan will lead Westpac’s data analytics, digital transformation, and artificial intelligence initiatives, with a strong focus on the responsible use of data and AI to deliver exceptional experiences for customers and employees.
Miller commented on McMullan’s appointment, stating the new addition to Westpac “will accelerate our strategic efforts in data analytics, digital innovation and responsible AI”.
“He’s an outstanding executive and thought leader who has successfully transformed data and digital capabilities in leading financial institutions globally.
“By integrating our data, digital and AI functions under Andrew’s leadership, we aim to become a truly service centric organisation, improving the customer experience and empowering our teams,” Miller said.
Miller further stated that McMullan will be responsible for building on the “strong foundations” established over the past half-decade by Westpac’s chief investment officer (CIO), Scott Collary.
“He will work closely with Scott and our executive team as we continue to responsibly leverage data to enrich the customer and employee experience.
“Andrew’s leadership will also be instrumental in supporting the successful delivery of UNITE.”
“I look forward to welcoming Andrew to our executive team,” Miller said.
The new appointee holds a PhD in Statistics from the University of Glasgow and brings extensive global experience in developing and scaling digital, data analytics and AI platforms.
According to Westpac, McMullan has focused on leveraging data and AI to enhance the financial wellbeing and overall experiences of customers, communities, and employees.
McMullan’s appointment comes as a new analysis from KPMG noted the digital transformation across all of the big four banks.
According to KPMG, 85 per cent of banking executives globally are already exploring these kinds of solutions, while spending on technology among Australian banks rose by 15.2 per cent in the last financial year, with the larger banks continuing to adopt emerging technologies, AI agents and machine learning.
“These technologies are streamlining operations and reducing costs, allowing banks to offer personalised and convenient services to their customers,” KPMG stated.
