The Productivity Mandate: Trusted AI for a Leaner Public Sector

Elissa Walker brings exceptional leadership and delivery experience in complex technological change and digital transformation, spanning both the private and public sector.

Elissa is the ATO’s Chief Digital Officer and Deputy Commissioner for Digital Delivery. Elissa leads a dedicated team responsible for the ATO’s digital platforms and digital strategy, including digital partnerships, digital identity eInvoicing, and contact centre platforms.

Before joining the ATO in January 2020, Elissa was a senior executive for a global technology and professional services company. For 18 years, Elissa led and delivered large-scale technology solutions and digital programs for revenue, health, defence and education clients. This included the implementation of Australia’s myHealth Record, Singapore’s National Electronic Health system, and the ATO’s Change Program.

Elissa remains passionate about enriching the digital experience by collaborating across domestic and international government digital ecosystems.

David Walker was appointed Westpac Group’s Chief Technology Officer in August 2019. Since then, he is leading Westpac through its technology transformation – simplifying and merging the bank, building 4th gen cloud-native applications, establishing and operating evergreen platforms, leading Westpac’s AI technology, and building a culture of passionate and forward-thinking tech and emerging talent.    

David began his technology career in 1987 as a software engineer, focusing on coding complex systems. After a decade of evolving his software engineering craft, David founded a data science consulting. Over the following decade, it became the number one expert data insights company in Australia and Southeast Asia.  

For the last 15 years, David has held executive roles in large, complex organisations across the APAC region. Prior to joining Westpac, David was part of the leadership team of Singaporean bank, DBS. In his ten years there, David helped transform DBS from a traditional bricks and mortar bank with little brand presence or recognition outside Singapore, to being recognised as the ‘Best Bank in the World’ and the ‘Best Digital Bank in the World’ by leading global financial publication Euromoney.  

At the Massachusetts Institute of Technology, Alan looks after CISR’s Research and Engagement for the Asia Pacific region. Previously, he held senior digital executive roles and managed digital strategy teams where he built and ran successful consulting businesses for Accenture and PwC. He was the Head of Digital Strategy for the Turnbull government of Australia. 

Proven experience in information technology, modernising and optimising digital delivery to underpin both the customer and employee experience. Nasa always looks for opportunities where her own values feed directly back to the community “Its about making a difference and more services accessible to everyone”. She has considerable experience helping organisations move forward with a strategic plan that gives them the digital tools they need to help leapfrog the roadblocks and pitfalls that can hold them back.