“I’m excited to share that I’m joining Westpac as Chief AI Innovation Officer,” she wrote.

“[This] is a newly created role focused on helping drive AI and GenAI adoption at enterprise scale, bringing together AI, engineering, data, and automation to create meaningful and lasting impact.”

According to reports, the Chief AI Innovation Officer position will see Shi cover the incubation and scaling of technological solutions that are powered by AI, including the trialing and prototyping of solutions across agentic and generative AI systems.

Shi will report to Andre McMullan, Westpac’s Chief Data, Digital and AI Officer. McMullan also formerly worked at CBA.

“As I begin this next chapter, I also want to sincerely thank CBA for the opportunities I’ve had over the past few years,” Shi added.

“I’m particularly grateful to have had the chance to help take the first steps in the bank’s GenAI journey — building out the GenAI Hub and an end-to-end agentic AI development experience in a large-scale banking environment. It has been a genuine privilege to work alongside so many talented colleagues in translating emerging technology into practical enterprise capability.”

At CBA, Shi led an “engineering team at the core of the bank’s data and AI platform, focused on MLOps, LLM Ops, generative AI and agentic AI agent[s].” She also credited her experiences to her time at Meta, particularly scaling machine learning solutions.

“My time at Meta was especially formative. It gave me a front-row seat to how machine learning can fundamentally reshape product design at scale — not just by enhancing what products can do, but by changing how teams think, build, iterate, and deliver. That perspective has stayed with me ever since.”