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Principal Software EngineerCommonwealth Bank · Sydney, New South Wales, Australia
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Commonwealth Bank

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Principal Software Engineer

🗓️ Posted 2026-10-22 Sydney, New South Wales, Australia Full-time On-site General
💰 Salary Not shared 📊 Market NA

About the Company

Principal Software Engineer Set the technical direction for platforms that detect and investigate financial crime. Shape domain-wide architecture while remaining close to engineering and code. Advance shared platforms, modern cloud engineering and responsible AI at CommBank. Do work that matters Join EC Technology, where our crews build the detection, investigation and data capabilities that help protect customers and keep financial crime out of the bank. As a Principal Software Engineer, you'll set the engineering direction across a technology domain rather than a single squad. You'll shape architecture, platform investment and build-versus-reuse decisions, helping multiple teams move from fragmented systems towards shared, scalable capabilities. This is an opportunity to influence technology that operates in a highly regulated environment. You'll set patterns for resilience, security, observability and responsible AI, while remaining hands-on enough to turn technical direction into practical engineering outcomes. Bring your ambition and help shape secure, future-ready engineering that delivers meaningful outcomes for customers and communities. See yourself in our team EC Technology brings together engineers, product professionals, data scientists and architects to strengthen the bank's crime-detection, investigation and data platforms. In this role, you will: Own the domain's technical strategy, including architecture direction, platform choices and build-versus-reus

Requirements

  • ● Strong computer-science foundations across algorithms, data structures, concurrency and distributed-system design.
  • ● Proven experience owning technical outcomes across complete product or platform surfaces, with the judgement to move between breadth and depth.
  • ● Strong API, contract and integration-design capability, including experience with REST, OpenAPI, API gateways or equivalent technologies.
  • ● Full-stack capability, including experience with React and TypeScript or equivalent technologies, as well as backend-for-frontend layers.
  • ● A practical approach to frontend engineering. The role principally supports internal, systems-facing applications rather than consumer-grade interfaces, but you'll be comfortable contributing across the stack when required.
  • ● Cloud-native engineering experience involving technologies such as AWS, Kubernetes, Docker, GitHub Actions or ArgoCD, with a focus on high availability and operational excellence.
  • ● Working with us
  • ● At CommBank, we're committed to creating an accessible, inclusive and respectful workplace. If you require support or adjustments, please let us know.
  • ● We welcome applications from people of all backgrounds, and we're particularly committed to making a positive difference for Aboriginal and/or Torres Strait Islander Peoples. For support, please contact 1800 989 696.
  • ● If this sounds like you, apply today.
  • ● 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: 07/11/2026