Staff Software Engineer - .NET Full Stack

Leveraging AI-powered engineering practices, the crew is redefining how software is delivered by increasing quality, accelerating innovation and enabling engineers to focus on higher-value problem solving.

If you're looking for a role where you can shape the future of digital home lending, work with talented engineers at scale, and see your ideas translate into real customer outcomes, this is the team that will elevate your career and expand what's possible.

We’re interested in hearing from people who:

Build and own full-stack solutions – delivering backend services in.NET / ASP.NET Core and modern front ends using React and Next.js, with strong focus on performance, maintainability, and accessibility.

Work across the full engineering lifecycle – from problem definition and architecture through delivery, CI/CD, observability, and production support in an Agile and DevSecOps environment.

Design scalable backend platforms – building secure, resilient APIs and services in.NET, applying strong domain modelling, performance optimisation, and operational visibility.

Deliver complex front-end capabilities – engineering modern web platforms with React and Next.js, using scalable component patterns, SSR/SSG strategies, and performance optimisation.

Leverage AI in engineering workflows – using AI to accelerate development, testing, and design while maintaining clear guardrails around code quality, data protection, and security.

Understand AI risks and controls – identifying potential issues such as hallucinated code, vulnerabilities, or unsafe dependencies, and applying strong validation and review practices.

Lead through technical depth and mentorship – guiding engineers in full-cycle engineering, modern architecture, and responsible AI adoption while maintaining high standards for quality and security.

Tech skills:

We don't expect you to know everything, but experience in several of the following will set you up for success:

Back End:.NET, ASP.NET Core, C#, REST APIs, Microservices.

Front End: React, Next.js, JavaScript, TypeScript, Temporal.

Cloud: AWS, Docker, Kubernetes.

Architecture: Microservices, Event-Driven Architecture (EDA), Domain-Driven Design (DDD), REST.

AI: GitHub Copilot, Roo Code, Claude, OpenAI APIs, LLMs.

DevSecOps: Git, GitHub Actions, CI/CD, Terraform, SonarQube.

Testing: TDD, API Testing, xUnit, NUnit, Jest, Cypress, Postman, Jmeter.

Observability: Prometheus, Grafana, OpenTelemetry.

End-to-End System Design: Distributed Systems, API Design, System Architecture.

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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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.