Principal Software Engineer

Overview Principal Software Engineer - Sydney
Be part of the technology leadership team of Commercial Cards & Scams Prevention crew in Everyday Business Banking Domain. As a Principal Engineer, you'll partner with stakeholders to design the overall tech direction, advise on technologies and complex integration strategies, and AI enablement. You'll be a core member of the team, providing technology expertise to inform technical strategy and design solutions for complex challenges within the crew. You'll maintain a strong risk mindset and a security-from-the-first-line-of-code approach. You'll invest in engineering craft and build class-leading applications.
You are an engineer at heart, with experience in coding, designing, and building business-driven solutions at scale, with a focus on velocity, security, performance, and reliability. Design thinking comes naturally to you. You will have proven expertise in Full Stack engineering, drive major technical decisions in design and architecture, and translate them into pragmatic engineering designs.
We're Interested In Hearing From People Who Are
Tech leaders who are fully hands-on and have a proven track record of leading and delivering large-scale, complex engineering initiatives
Possesses full-cycle engineering experience: ideation, technical design, build, testing (unit, integration, system), release, and ongoing maintenance
Cultural advocates of open communication and collaboration across engineering teams
Collaborate with a team of high-performing engineers to build and deploy multiple technology solutions that define current and future states and the roadmap
Designs and implements innovative technical solutions to complex problems, including onboarding and migrating to new tooling and removing obsolete systems and code
Able to influence cross-functional teams, articulate trade-offs, and align technical decisions with business objectives
Adept at driving continuous improvements across platforms, including reducing build time, increasing deployment frequency, and improving resilience
Drives automation practices and the DevSecOps journey for the crew
Experienced with solution architecture, technology blueprints, engineering roadmaps, and translating project vision into actionable plans
Actively embraces and integrates AI-driven solutions to enhance engineering workflows and product capabilities
Tech Skills
We are seeking a Principal Engineer with a solid background in Full Stack Software Engineering. Natural team leaders who love to code and can influence engineering leadership teams, technical crews, and senior stakeholders with a passion to drive cloud-first solutions at scale. We use a broad range of tools, languages, and frameworks, but do not expect you to know them all. Experience or exposure with these will set you up for success in this team:
Frontend - React, Typescript,
Backend - .NET Core, C#, , GraphQL
Cloud - Azure / AWS (Preferred)
Databases - SQL, NoSQL
CI/CD tools - GitHub, GitHub Actions, Terraform Enterprise, Artefactory
Observability - OpenTelemetry, Prometheus, Grafana, Observe, CloudWatch
Security - Vault, Security Management, Parameter Store, AWS Certificate Manager, AWS Secrets Manager
Any experience with AI/ML, Agentic AI, Mobile development
Experience in building and deploying secure, scalable, and highly available cloud-native applications, utilizing automated CI/CD pipelines, logging, and monitoring tools
Day-to-day or side project experience in one or more of the following technologies or related technologies: Anthropic Claude, OpenAI, LangChain, LangGraph
Working with us
Whether you're passionate about customer service, driven by data, or called by creativity, a career with CommBank is for you. We support our people with the flexibility to balance where work is done, with at least half your time each month connecting in our Sydney office. We also have many other flexible working options available including changing start and finish times, part-time arrangements and job share. Talk to us about how these arrangements might work for you.
Here, you'll thrive. You'll be supported when faced with challenges and empowered to tackle new opportunities. We're hiring engineers from across all of Australia and have opened technology hubs in Melbourne and Perth. We really love working here, and we think you will too.
If this sounds like you, apply now
If you\'re already part of the Commonwealth