Principal Software Engineer

**Principal Engineer

Do work that matters**
Our approach is to empower every engineer to be a source of ideas and action, embracing the Full Cycle model — where engineers are involved in the Design, Build, Challenge, and Run aspects. This is your chance to redefine the craft of engineering, shape our culture, and deliver impactful, scalable solutions that will significantly impact our customers, employees, and the broader community.

We are in the process of uplifting and re-innovating our digital platforms. As part of this exciting new Greenfield project, you will design and build a modern digital experience from scratch at Australia's largest bank. This undertaking will see you use your design and technical leadership capabilities to directly reach and enhance the digital lives of over 9 million Commbank customers every day.

See yourself in our team
Be part of the technology leadership team of FCO Reimagined crew in Financial Crime Operations domain. As a Principal Engineer for our crew, you'll partner with stakeholders to design overall tech direction, advise and influence on technologies and complex integration strategies, and AI enablement.

We are passionate about empowering businesses and individuals to succeed with the next horizon of technology to become the leading digital business bank in Australia. We also use technology to drive simplicity and better banking, an essential component of great customer service underpinning a strong emphasis on software development as a craft and the adoption of industry best engineering practices.

As a Principal Engineer, you'll be a core member of our team. You will provide core technology and domain expertise to inform technical strategy be responsible for the design of the solutions for complex challenges within a business unit. You'll have a strong risk mindset and take a security from the first line of code approach. Those around you to invest in their own engineering craft, as well as building class leading applications is something that you'll be passionate about.

In this role, you will support the crew to deliver an ambitious vision against our customer objectives: to create enduring technology differentiation with unmatched digital experiences built on decoupled, resilient, and reliable technology foundations.

We're interested in hearing from people who:

• Possesses full-cycle engineering experience: ideation, technical design, build, testing (unit, integration, system), release, and ongoing maintenance.
• Expertise in AI/ML and Gen AI applications and how they can enhance software engineering processes to improve productivity
• Experience building RAGs using LlamaIndex, LangChain, or similar frameworks
• Experience building Agentic AI systems using AutoGen, SemanticKernel, Pydantic, or similar frameworks is preferred
• Knowledge of or experience in enterprise Gen AI and agentic AI tools
• Provides overall engineering leadership for the platform including software, systems, quality and site reliability.
• Demonstrated ability to evaluate emerging AI tools and integrate them into engineering workflows
• Proficiency in agile development methodologies and iterative experimentation from ideation to prototype to pilot to product
• Have ability to design technology solutions to meet the highest possible quality standards while simultaneously balancing security, performance, availability, and maintainability concerns.
• Designs and implements innovative technical solutions to complex problems, including onboarding and migrating to new tooling as well as removing obsolete systems and code.
• Are well versed with solution architecture, technology blueprints, engineering roadmaps, and translating the project vision into actionable plans.

Tech Skills:
We use a broad range of tools, languages, and frameworks. We don't expect you to know them all but experience or exposure with some of these will set you up for success in this team:

• Frontend - React, Typescript,
• Backend - .NET Core, C#, , GraphQL
• Cloud - AWS (Preferred)
• Databases - SQL, NoSQL
• CI/CD tools - GitHub, GitHub Actions, Terraform Enterprise, Artefactory
• Observability - Open Telemetry, Prometheus, Grafana, Observe, CloudWatch
• Security - Vault, Security Management, Parameter Store, AWS Certificate Manager, AWS Secrets Manager
• Any experience with the following would be great – AI/ML, Agentic AI

Working with us:
Whether you're passionate about customer service, driven by software engineering, or called by creativity, a career with us is for you.

We support our people with the flexibility to balance where work is done with at least half their time each month connecting in office. We also have many other flexible working options available including changing start and finish times, part-time arrangements and job share to name a few.

Our people bring their diverse backgrounds and unique perspectives to build a respectful, inclusive, and flexible workplace with flexible work locations. We're looking for people who truly live our values: Care, Courage and Commitment and we'll offer you great opportunities to develop your career with us.

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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Advertising End Date: 26/09/2025