Lead Engineer - Database & Migration

What’s the Role:

This role is part of Westpac’s UNITE initiative, focused on simplifying the mortgage servicing landscape by consolidating multiple applications into a single platform. As part of this initiative, a key phase involves large‑scale data migration, for which we are expanding the team.

The role requires strong expertise in ETL frameworks and data engineering practices, along with the ability to provide technical oversight. This includes reviewing the work of Data/ETL developers and ensuring high standards of end‑to‑end data delivery, quality, and integrity across the migration process.

Key Responsibilities:

Lead end-to-end database migration initiatives, owning strategy, design, execution and governance across legacy and modern platforms.

Provide senior technical oversight to ensure data integrity, security, performance and compliance throughout migration lifecycle.

Design and validate migration architectures, source-to-target mappings, cutover strategies, and target state improvements.

Manage risks, dependencies and rollback planning while ensuring data accuracy, reconciliation and consistency post-migration.

Collaborate across engineering and delivery teams, mentor engineers, and produce high-quality documentation, runbooks and artefacts.

What do I need?

Strong experience with enterprise data migration and ETL tools (e.g. Informatica or similar), including building custom migration frameworks and scripts.

Proven ability to migrate data across complex, heterogeneous environments (e.g. Oracle SQL Server, legacy to modern platforms).

Deep understanding of data validation, reconciliation, migration testing and ensuring data accuracy and integrity.

Strong analytical, problem-solving and stakeholder communication skills, with ability to influence outcomes at a senior level and work across multiple teams.

Exposure to mainframe environments (VSAM/IAM), cloud or hybrid platforms, and experience with automation, CI/CD, performance tuning and integration-heavy ecosystems.

Why join us?

We’re obsessed with becoming our customers' #1 banking partner for life and we’re looking for people who are passionate about helping us achieve that goal. In return, we’re committed to making Westpac the best place to work in the country. Here are just a few of the ways we’re already doing that:

Special offers on banking products and discounts from top brands, including generous employee only mortgage rates!

Flexible work arrangements to help you achieve a greater work/life balance, and a variety of leave options including Culture, Lifestyle and Wellbeing leave.

Tailored learning and development opportunities to help your grow your career within the bank.

Lots of opportunities to ‘give back’ to the Community by getting involved in our many volunteering initiatives.

Create your future today

We’re all about creating a supportive and inclusive community. We welcome everyone no matter your age, gender, background, or abilities. We also provide additional support to welcome our veterans, Indigenous Australians and neurodiverse community.

If you need any adjustments during the recruitment process, you can find out more information and additional contact details by visiting the "People with Disability and/or needing Accessibility Requirements" page on our website .