Principal Software Engineer

Provide technical leadership and architectural direction for the personalisation engine and associated backend systems

Design and build scalable platforms powering intelligent signals and real-time personalisation

Lead the transition from segment-based to individual-based personalisation models

Work hands-on across backend systems, APIs, and data integrations in a high-scale environment

Partner with multiple squads to ensure alignment across architecture, performance, and delivery

Influence and uplift engineering standards, including testing, observability, and deployment practices

Drive innovation by exploring new technologies and approaches beyond the current ecosystem

Mentor engineers and elevate technical capability across the team

We’re interested in hearing from people who:

Bring deep backend engineering expertise with strong architectural experience

Have delivered large-scale, customer-facing platforms in complex environments

Are experienced in distributed systems, APIs, and event-driven architecture

Can navigate ambiguity and drive solutions in greenfield or evolving environments

Demonstrate strong learning agility, curiosity, and innovation mindset

Have the confidence to challenge thinking and influence senior stakeholders

Thrive in cross-functional teams and can balance hands-on work with strategic leadership

Experience with personalisation, recommendation systems, or customer experience platforms is highly valued, but not essential.

At CBA, we're building a diverse, inclusive, and flexible workplace where engineers can do meaningful work at scale. We live our values of Care, Courage, and Commitment, and we invest in developing engineering leaders who raise the bar for the whole organisation.

If you're already part of the Commonwealth Bank Group (including Bankwest, x15ventures), 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.

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