Senior Manager, Performance Modelling

Senior Manager, Performance Modelling, Portfolio Performance, Mortgages Line of Business

• Sydney
• Full-Time Permanent role
• Hybrid working model, 2 days on-site

How will I help?  

The Mortgages team provides a comprehensive lending experience to millions of Australian home loan customers, including employees through Employee & Family Banking Home Loan offers. Collaborating with first and third-party lenders, the team supports a wide range of customers, including home buyers, investors, upgraders, and downsizers, across five brands: Westpac, St.George, BankSA, Bank of Melbourne, and RAMS. The Mortgages Line of Business (LOB) aims to create seamless, digital home loan experiences while growing sustainably, contributing significantly to Westpac Group’s success by representing over half of its total cash earnings.

This role focuses on providing actionable insights to mortgage Line of Business (LOB) leaders, helping them make informed decisions to acquire, retain, and grow priority segments and channels. As a subject matter expert, the individual will oversee balance sheet momentum, benchmarking performance, and developing forecasting tools to track mortgage growth. They will also work to consolidate LOB activities, identify opportunities to enhance portfolio growth, and collaborate with Group data partners to build effective reporting capabilities. Additionally, the role involves addressing inquiries from senior leaders, regulators, and industry participants about the mortgage portfolio.

Collaboration is key, as the position requires working closely with various stakeholder groups, such as Customer Engagement, Broker, Finance, and Strategy & Development, to achieve mortgage balance sheet targets and improve portfolio performance management. Strong analytical and financial modelling skills are essential for breaking down complex problems and uncovering opportunities that deliver organizational value. The role also demands excellent communication abilities, both written and verbal, alongside adaptive influencing and relationship-building skills to work effectively with leaders and peers across the organization.

Key Accountabilities:  

• Own and enhance the Mortgages Line of Business (LOB), portfolio projection and forecasting/target setting processes and tools
• Deliver actionable insights to LOB leaders and their teams that support decision-making to more effectively grow priority segments and channels
• Consolidate initiatives across the Mortgages LOB and assess the growth, risk and profitability implications on the portfolio

What’s in it for me? 

You’ll play a significant part of the future of a business that has been around for 200 years. Our purpose is to create better futures together. So, we’ll back you in the development of your career, internal career prospects, and flexible working. You’ll also keep learning to grow your career, backed by a fantastic team of people with a can-do, supportive structure. Whatever shape your family takes, we offer generous paid and unpaid parental leave for your nominated primary and support carers. This includes leave to organise adoptions, surrogacy, and foster care arrangements. And we continue to pay your super contributions while you take all the time you need to get your new family settled. 

What do I need?

• Strong proficiency in predictive modelling, financial modelling and data analysis
• Demonstrated ability to break down complex business problems to identify opportunities using data
• Excellent verbal, written and presentation skills
• Ability to work independently in a dynamic environment
• Strong SQL and Excel skills are required. Data modelling (e.g. Python) is preferred.

What is it like to work there? 

We are a collaborative team of passionate people with a shared ambition to make a difference for our customers, our communities and each other. At Westpac, making a difference means creating impact, unlocking our own and each other’s passions, and transformative success stories to create better futures together.   

As well as competitive remuneration and a great culture, joining the Westpac family gives you access to a wide range of employee benefits to help you manage your priorities - whether that means family life, work/life balance, ambition to grow or all the little perks in between. 

We’ll empower you to shape your career path.  Through personalised upskilling, mentoring, and training opportunities, you’re in control of where you start and how you’ll grow.  

As an equal opportunity employer, we are proud to have created a culture and work environment that values diversity and flexibility – and champions inclusion.

Hear from some of our people and their experiences working with us.

How do I apply? 

Start here. Just click on the APPLY or APPLY NOW button. 

At Westpac, we’re all about creating a supportive culture and ensuring our workplaces, branches, products, and services are accessible and inclusive for everyone—our customers, employees, and the wider community. If you’re interested in discussing workplace flexibility, please feel free to mention it in your application. 

We invite candidates of all ages, genders, sexual orientation, cultural backgrounds, people with disability, neurodiverse individuals, and Indigenous Australians to apply. If you have questions about the recruitment process, please email ***************@westpac.com.au. 

Do you need reasonable adjustments during the recruitment process? 

We’re committed to making our recruitment process accessible to all candidates, including those with disabilities or specific accessibility needs. For further information and additional contact details visit the "People with Disability and/or needing Accessibility Requirements" page on our website https://www.westpac.com.au/about-westpac/inclusion-and-diversity/Inclusion-means-everyone-matters/disability-and-accessibility/