Principal Software Engineer

Lead hands-on engineering and platform enablement across a large, complex Business Banking technology environment. Shape engineering standards, uplift developer experience and help delivery teams adopt modern ways of working. Build with cloud, automation, DevSecOps and AI-powered engineering practices as CommBank advances its technology estate. Do Work That Matters Business Banking Technology is on a mission to become Australia’s leading digital business bank. We partner closely with our business colleagues to solve real customer problems through technical innovation and empowered teams. As a Principal Software Engineer in the Engineering and Platforms Centre of Excellence, you’ll provide hands-on technical leadership across Everyday Business Banking. You’ll build practical engineering solutions, strengthen platforms and practices, and help teams deliver secure, reliable and high-quality outcomes at pace. See yourself in our team Be part of a team that's passionate about helping Australian businesses succeed. In CommBank's Business Banking team, you'll partner with customers to support their ambitions, backed by market-leading technology, a collaborative culture and opportunities to grow your career. You’ll join a team that connects delivery squads with central technology teams, helping close local engineering gaps and turn enterprise platforms, tools and strategies into practical outcomes. The team supports more than 75 delivery squads and 450 engineers, with a broad focus spanning platform enablement, cloud, DevSecOps, observability, automation and AI-powered engineering. In this role, you will: Provide hands-on technical leadership, helping set engineering direction and mentoring senior engineers. Design, build and evolve platforms, tools and reusable capabilities that make engineering simpler and more effective. Establish engineering standards, patterns, guardrails and golden paths that improve quality and consistency. Partner directly with squads to uplift their engineering practices and support meaningful, sustainable adoption. Champion automation and AI-powered approaches across the software delivery lifecycle. Improve developer experience through self-service capabilities, standardised pipelines and reusable templates. Work with architecture, security, risk, data and engineering teams to deliver solutions aligned with enterprise standards. Strengthen observability, reliability, performance and cost optimisation as part of everyday engineering. We’re interested in hearing from people who: You’re a versatile, hands-on engineer who can move comfortably between software, platforms and infrastructure. You enjoy solving complex problems, building practical solutions and helping other engineers do their best work. We use a broad range of tools, languages and frameworks, so we don’t expect you to know everything. Experience across several of the following areas will set you up for success. Strong software engineering fundamentals, with experience designing, coding and operating practical technology solutions. A language-agnostic mindset, supported by deep experience in one or more programming languages and the adaptability to work across different technology stacks. Deep understanding of modern software delivery, including DevSecOps, quality engineering, observability, reliability and release practices. Experience designing, building and operating cloud solutions, preferably on AWS, including infrastructure as code and continuous delivery pipelines. Experience with containers, platform runtime patterns, secure engineering, identity and access management, and automated controls. Capability using AI tools, patterns or workflows to improve engineering quality, productivity and outcomes. The ability to explain complex technical strategy clearly and bring diverse teams together around practical outcomes. A collaborative, curious and continuous improvement mindset, with a genuine interest in uplifting engineering capability at scale. 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 opportunity excites you, we’d love to hear from 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: 20/10/2026 Whether you’re passionate about customer service, driven by data, or called by creativity, a career with CommBank is for you. Our people bring their diverse backgrounds and unique perspectives to build a respectful, inclusive and flexible workplace. One where we’re driven by our values, and supported to share ideas, initiatives, and energy. One where making a positive impact for customers, communities and each other is part of our every day. Here, you’ll thrive. You’ll be supported when faced with challenges, and empowered to tackle new opportunities. We really love working here, and we think you will too.