Senior Data Scientist

Sydney, NSW | Full-Time | Data Science | New Squad Opportunity

About the Role:

Join a newly formed, forward-thinking squad focused on building Gen AI-powered chatbot solutions to transform dispute processing and fraud detection.

This is a greenfield opportunity to design intelligent agent workflows using GPT-4 and LLMs, with a direct impact on customer experience and operational efficiency.

Key Responsibilities:

• Develop Gen AI chatbots for dispute types using agentic workflows.
• Integrate a first-party fraud detection model to introduce intelligent friction in claims lodgement.
• Collaborate with cross-functional teams including fraud, product, and engineering.
• Apply LLM technologies (e.g., GPT-4, LangChain) for prompt engineering, RAG, and guardrail design.
• Produce clear documentation and communicate effectively with stakeholders.

What You'll Bring:

• Proven experience in Gen AI, chatbot development, and LLMs.
• Strong foundation in statistics and probability; able to interpret models.
• Proficiency in Python and experience with AI/ML model development.
• Excellent communication skills for documentation and stakeholder engagement.
• Tertiary qualification in Data Science, Statistics, Computer Science, or a related field.

Nice to Have:

• Experience in fraud modelling or financial services.
• Familiarity with agentic workflows and multi-agent LLM systems.
• Exposure to dispute resolution or claims processing systems.

Why Join Us?

• Be part of a brand-new initiative - no legacy systems, full creative freedom.
• Work with cutting-edge Gen AI technologies in a high-impact domain.
• Collaborate with a passionate team driving innovation in customer experience and fraud prevention.

Working with us:

Whether you're passionate about customer service, driven by data, or called by creativity, a career with CommBank is for you.

Our people bring their diverse backgrounds and unique perspectives to build a respectful, inclusive, and flexible workplace. One where we're driven by our values, and supported to share ideas, initiatives, and energy. One where making a positive impact for customers, communities and each other is part of our every day.

Here, you'll thrive.

We support our people with the flexibility to balance where work is done with at least half their time each month connecting in office. We also have many other flexible working options available including changing start and finish times, part-time arrangements and job share to name a few. Talk to us about how these arrangements might work in the role you're interested in.

Whether you're passionate about customer service, driven by data, or called by creativity, a career here is for you.

Our people bring their diverse backgrounds and unique perspectives to build a respectful, inclusive and flexible workplace. We are working hard to build a team of people who represent the rich diversity of our customers and communities. If you're excited about this opportunity but you don't meet every single requirement, or your experience doesn't align perfectly, we still want to encourage you to apply. You may just be the perfect candidate for this opportunity or another within CommBank.

At CommBank we will inspire you with work that makes a difference, surround you with talented people that respect and value each other, and empower you to grow professionally and personally. Most of all, making a positive impact for customers, communities and each other is part of our every day.

We're determined to make a real difference for Australia's first peoples. We encourage all interested applicants to apply. If you're already part of the Commonwealth Bank Group (including Bankwest), you'll need to apply through Sidekick to submit a valid application. We're keen to support you with the next step in your career.