CareerTreesAustraliaCommonwealth Bank

Commonwealth Bank

Principal Software Engineer

Sydney CBD Area · Posted 19 May 2026

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  • You are collaborative and enjoy solving analytical problems to help our team to reach highest potential

  • We are a team of big thinkers who are engineering the future of banking

  • Together we will build tomorrow’s bank today, using world-leading technology and innovation

Do work that matters

Technology is the enabling force behind information technology functions for the Group to achieve the highest levels of customer experience, security and reliability, velocity, and innovation.  

In Enterprise Transformation Program (ETP) Technology, we provide technology solutions to different lines of businesses across the bank. We are empowering businesses and people to succeed with tomorrow’s technology, our purpose is to become the leading digital business bank, powered by the next horizon of technology.

See yourself in our team

As part of the engineering squad, you will be involved in key strategic initiatives that transform the Business user experience, drive continuous improvement and risk buy-down. You will work closely with the Product Owner and squad to deliver business functionality and experience via significant strategic transformation and change delivery.

We’re interested in hearing from people who

  • 50% hands-on engineering/coding, 40% deep technical design, and 10% leadership

  • Have solid hands-on experience developing APIs, microservices, backend components, data access layers, and some experience in working with frontend developers

  • Proven track record of designing and developing enterprise level solutions that are in production

  • Are knowledgeable and experienced in AI technology in future proofing our build

  • Have experience with the full software development lifecycle and delivery using Agile practices with specific focus on the following concepts: source control, CI/CD, automated testing, infrastructure cloud pipelines, logging and monitoring

  • Are knowledgeable coaching junior engineers, sharing their expertise to uplift and improve software development practices

  • Are constantly thinking outside the box and breaking boundaries to solve complex technical problems

  • Pride themselves on their natural drive to educate, communicate and positively influence various stakeholder groups

  • Are ready to execute state-of-the-art coding practices, driving high quality outcomes to solve core business objectives and minimise risks

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

  • Core Java

  • Expertise with Microservices, Restful API design pattern and solution design

  • Cloud native development - AWS preferred

  • Databases - Oracle, Aurora

  • AI tools in AWS or Azure

  • DevOps and CI/CD – TeamCity, GitHub Copilot or Octopus 

  • Experience with monitoring and observability tools like Prometheus/Grafana, Splunk, AWS Cloudwatch

  • AI & Machine learning and LLM knowledge is desired 

  • Working knowledge of Kafka or SNS/SQS

  • Understanding on DevSecOps environment and landscape, SRE Practices

  • JavaScript frameworks - Angular, React (nice to have)

  • Expertise with Security Engineering principles and implementation (nice to have)

  • Worked with a large data platform (nice to have)

Working with us

Whether you’re passionate about customer service, driven by data, 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 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 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 this sounds like you, apply now!

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: 15/06/2026

About Principal Software Engineer jobs in Australia

There are 8 open Principal Software Engineer jobs in Australia as of 01 June 2026, listed by 2 employers including Canva and Commonwealth Bank. Every listing on this page is pulled from the employer's own job feed and refreshed daily, so the count reflects roles that are open right now rather than archived postings. Current openings include full-time work. See all Principal Software Engineer jobs in Australia.

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Where the roles are
  • 2 Locations · 3
  • Sydney · 2
  • Melbourne · 2
  • Sydney CBD Area · 1

Data source: each employer's public applicant tracking system, re-read nightly. Last posting update 01 June 2026. CareerTrees lists roles and links out to the employer to apply; it does not collect applications or charge employers for placement.