CommBank

Staff Software Engineer (Full Stack- GraphQl and Nextjs)

Sydney CBD Area Full time

Staff Software Engineer (Full Stack- GraphQl and Nextjs)

Digi 2.0 – NetBank Next | Transform the Future of Digital Banking

Do work that matters

We’re reimagining digital banking from the ground up.

As part of Digi 2.0 and the NetBank Next program, we’re rebuilding the digital bank experience for over 9 million Australians. This is a Greenfield transformation focused on delivering resilient, decoupled, customer-centric platforms that will define the next era of digital banking.

We’re looking for an exceptional Staff Software Engineer to provide technical leadership, shape architecture decisions, and drive engineering excellence across one of our squads. While initial focus areas may include payments and core banking experiences, this role is intentionally broad — you will contribute across customer journeys including transactions, profiles, preferences, and beyond.

This is your opportunity to design, build, challenge, and run modern systems at scale.

See yourself in our team

You’ll join a high-performing engineering crew working in a full-cycle model, where engineers own outcomes end-to-end — from system design and build through to reliability and operational excellence.

As a Staff Engineer, you will:

  • Lead system design and architectural decisions for large-scale digital platforms

  • Drive technical strategy and influence engineering direction across squads

  • Coach and uplift engineers, fostering strong engineering fundamentals

  • Lead significant technical change, including modernisation and legacy simplification

  • Champion reliability, resilience, and operational excellence for mission-critical services

  • Partner closely with product and stakeholders to deliver meaningful customer outcomes

What we’re building

Our ambition is to create:

  • Seamless digital experiences that enhance the financial wellbeing of Australians

  • Accelerated delivery velocity by untangling legacy complexity

  • Always-available, resilient channels powered by scalable cloud infrastructure

  • You’ll help shape modern, decoupled platforms designed for long-term differentiation.

Our Technology Environment

We use a modern, evolving technology stack. You don’t need to know everything, but strong fundamentals and experience in similar environments are essential.

  • Frontend: Next.js (preferred) or React or TypeScript

  • Backend: GraphQL (primary) or Node.js (nice-to-have) or .NET Core / C#

  • AWS (Azure experience also welcome)

  • Microservices architecture

  • DevSecOps practices

  • CI/CD pipelines (GitHub Actions, TeamCity, Octopus)

  • Infrastructure as Code (Terraform, Pulumi, CloudFormation)

  • Serverless Stack Toolkit (SST)

  • Automation and quality engineering practices

We value engineers who are comfortable working across the stack. While we prefer a full-stack profile, depth in either frontend or backend is acceptable provided you can confidently contribute end-to-end.

We’re interested in people who:

  • Have proven experience designing and building large-scale digital applications

  • Demonstrate strong system design and engineering fundamentals

  • Have operated microservices in production environments

  • Can pragmatically address technical debt with commercial awareness

  • Influence technical direction and align stakeholders behind it

  • Lead complex migrations, modernisation initiatives, and tooling adoption

  • Coach and mentor engineers to elevate team capability

  • Encourage constructive challenge and continuous improvement

Apply today!

We support our people with the flexibility to balance where work is done with at least half your time each month connecting in the 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: 20/03/2026