Principal Software Engineer

Principal Software Engineer – Personalisation & Digital Experience Drive the design and build of a next-generation personalisation engine powering millions of customer interactionsLead architecture across backend systems, intelligent signals and customer experience platformsPartner with senior engineering and product leaders to shape the future of hyper-personalised banking Do work that matters We’re transforming the digital banking experience for millions of Australians. The Getting Connected value stream sits at the heart of our digital group, responsible for onboarding customers, helping them navigate the digital ecosystem, and delivering personalised, relevant experiences from the moment they arrive on the home screen. We are evolving from cohort-based personalisation to true user-level hyper‑personalisation, powered by intelligent signals and a modern technology stack. This includes building a new personalisation engine that can surface timely, contextual prompts — like bill reminders and tailored insights — to help customers make better financial decisions. As a Principal Engineer, you’ll play a critical role in shaping this transformation, delivering innovative, scalable platforms that define how customers experience our digital channels such as the CommBank App and Netbank. See yourself in our team You’ll be part of the Getting Connected value stream within our retail digital group — a large, high-impact ecosystem made up of multiple squads focused on delivering seamless, personalised customer experiences. Working primarily within the Home Screen squad, you’ll lead engineering across key personalisation capabilities, supporting two squads directly while collaborating with others across the value stream. This team is focused on: Onboarding customers into the digital environmentCurating personalised customer journeys and dashboardsBuilding intelligent signals that proactively engage customersEnabling real-time, data-driven personalisation at scale You’ll collaborate with engineers, product owners, and senior technology leaders to design and deliver the systems that power one of the most visible and critical parts of our digital experience. What You’ll Do Provide technical leadership and architectural direction for the personalisation engine and associated backend systemsDesign and build scalable platforms powering intelligent signals and real-time personalisationLead the transition from segment-based to individual-based personalisation modelsWork hands-on across backend systems, APIs, and data integrations in a high-scale environmentPartner with multiple squads to ensure alignment across architecture, performance, and deliveryInfluence and uplift engineering standards, including testing, observability, and deployment practicesDrive innovation by exploring new technologies and approaches beyond the current ecosystemMentor engineers and elevate technical capability across the team What We’re Looking For We’re interested in hearing from people who: Bring deep backend engineering expertise with strong architectural experienceHave delivered large-scale, customer-facing platforms in complex environmentsAre experienced in distributed systems, APIs, and event-driven architectureCan navigate ambiguity and drive solutions in greenfield or evolving environmentsDemonstrate strong learning agility, curiosity, and innovation mindsetHave the confidence to challenge thinking and influence senior stakeholdersThrive 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. Skills & Technologies We use a broad range of technologies, and you don’t need experience across all of them. Exposure to the following will be beneficial: Backend: .NET / C#, Node.js or similarArchitecture: Microservices, event-driven systemsData: Real-time data processing, APIs, distributed systemsPersonalisation: Customer behavioural data, signals, decisioning enginesDevOps: CI/CD, automation, modern deployment practicesCloud & Infrastructure as Code tools If this sounds like you, apply today! Working with us 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. We're aware of some accessibility issues on this site, particularly for screen reader users. We want to make finding your dream job as easy as possible, so if you require additional support please contact HR Direct on 1800 989 696. Advertising End Date: 11/09/2026