Commonwealth Bank of Australia

Principal Software Engineer- CommSec

• You are passionate about improving the reliability and operability of mission-critical services.
• We are solving complex problems by creating solutions that will delight our customers.
• Work with some of the best minds in tech using best of breed technologies

Do work that matters

CommSec is Australia’s leading online share trading platform. We are a fast-paced, dynamic team that offers Australia’s best online and mobile trading solutions. We’ve been awarded Money Magazine’s “Best feature-packed online broker” for 16 years running!

We offer a great range of benefits to our customers, including our mobile app so they can trade on the go, cutting-edge research for investment ideas, up-to-date analysis from the CommSec experts, products to help them diversify, support if they need it and much more.

Are you passionate about creating cutting-edge technology solutions that positively impact millions of customers? We are looking for talented Principal Engineers to join our dynamic team as part of our multi-year Enterprise Transformation Program. In this role, you'll have the opportunity to help shape and deliver a visionary strategy focused on enhancing customer experiences and building resilient, future-proof technology.

Our program’s goals are ambitious but simple:

• Deliver meaningful value to customers by unlocking reliable, user-friendly digital experiences.
• Speed up delivery and empower teams by simplifying complex legacy systems.
• Ensure always-on, dependable channels through robust, scalable technology solutions.

As a Principal Engineer, you’ll play a pivotal role in shaping technical strategies and driving solutions to address the program's most complex challenges. You’ll use your expertise to ensure we build a secure, scalable foundation from the ground up, applying a security-first mindset at every step.

We’re Interested in people who:

• Have experience with breaking down monolithic architectures into manageable pieces.
• Have built microservices at scale or APIs that handle over 1000 transactions per second.
• Have worked with event-driven architectures and understand their real-world applications.
• Have experience in managing microservices in a DevSecOps environment.
• Approach technical debt pragmatically, balancing commercial priorities and innovation.
• Can influence and guide technical direction and strategy across the business.
• Have solved complex technical problems, including integrating new tools and phasing out outdated systems.
• Promote diverse, inclusive teams while encouraging innovation and challenging the status quo.

Skills Required:

This is a hands-on technical role where you’ll have the chance to work across a wide range of technologies, tools, and frameworks. We’d love to hear from you if you have experience in:

• Building 3-tier applications across cloud (AWS preferred) and on-premise environments, particularly with:
• Frontend: React, Redux (preferred) or Angular.
• Backend: .Net Core
• Databases: SQL and NoSQL, with experience in both administration and usage.
• Designing and implementing microservices and highly scalable APIs.
• Using programming and scripting languages like JavaScript, TypeScript, Go, or Python.
• Working with CI/CD tools such as GitHub Actions, Octopus etc.
• Leveraging IaC tools like Terraform or CloudFormation.
• Driving quality with automated testing (Unit and Regression Testing).
• Designing robust systems and solutions with a focus on security and scalability.
• Ensuring observability and performance monitoring.
• Promoting code quality through peer programming, code reviews, and automated release pipelines.
• Mentoring and developing the next generation of engineers.

If you thrive on creating lasting, impactful technology and want to be part of an inclusive team that values innovation and growth, we’d love to hear from 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.

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: 13/06/2025