Principal Software Engineer

About Cba (CommBank Careers)

• 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.
• Working with us At CommBank, we're committed to creating an accessible, inclusive and respectful workplace.
• We’re keen to support you with the next step in your career.

Responsibilities

• Own the domain’s technical strategy, including architecture direction, platform choices and build-versus-reuse decisions.
• Drive consolidation and decommissioning, reducing system and pipeline duplication while establishing reusable golden paths.
• Scale platforms from minimum viable products into resilient, highly available and enterprise-ready services.
• Set engineering standards across continuous integration and delivery, testing, observability, operational readiness and security.
• Provide hands-on technical leadership across the stack, guiding the development of scalable services, well-designed APIs, backend-for-frontend layers and fit-for-purpose internal interfaces.
• Define reliable, observable and responsible approaches to AI and agentic systems, with appropriate human oversight.
• Embed regulatory, control, security and privacy considerations into engineering decisions from the outset.
• Mentor senior engineers and lift engineering capability through influence, technical leadership and hands-on contribution.

Requirements

• You're a foundations-strong engineering leader who can reason across technologies, connect strategy with delivery and create clarity in complex environments.
• You bring broad, full-stack software engineering experience and can influence teams without relying on formal authority.

You’ll bring

• 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.
• Experience designing and operating production services and APIs at scale using a modern typed language such as Python, Java, Kotlin or Go.
• 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.
• Experience with platform strategy, reusable capabilities, legacy-system modernisation, event-driven integration, observability, security-first engineering, or reliable AI and agentic systems.

Support and adjustments

• 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.

How to apply

• 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.

Accessibility

• 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