Staff Software Engineer - Consumer Cards

About the role

CBA is hiring a Staff Software Engineer (full stack) for its Consumer Cards team, which builds and evolves consumer card products and the underlying card platforms and BIAN-based service APIs that process millions of transactions daily. The role combines hands-on delivery with technical leadership: shaping the engineering roadmap, raising standards in cloud-native design and full-stack engineering, and mentoring engineers and contractors.

Key responsibilities

• Build, simplify and modernise the products, processes and infrastructure behind CBA's card offerings, including credit card Netbank next and commsee 2.0
• Design and build scalable applications on AWS, with modern front ends in TypeScript and Next.js, including emerging AI-powered experiences
• Shape long-term technical strategy and influence platform architecture, including microservices, event-driven integrations and cloud-native deployment patterns
• Drive technical uplift across squads and champion engineering standards and best practices
• Lead high-quality delivery through CI/CD, test automation, observability and strong DevSecOps practices
• Bring an AI enablement mindset, applying AI-assisted development and emerging agentic patterns to improve developer productivity and system design

Required profile

• Staff Software Engineer (full stack) with end-to-end ownership across design, build, run and optimisation
• Technical subject matter expert and engineering leader who stays hands-on
• Experience designing, building and operating robust, scalable, cloud-native solutions
• Strong AI enablement mindset and willingness to upskill

Required skills

• Front end: Next.js (must have) and TypeScript
• Back end: C#.NET, PostgreSQL or other relational databases, REST APIs
• API design: RESTful APIs, OpenAPI, API versioning, contract-first design
• Cloud-native: AWS (ECS, Lambda, S3, RDS), microservices, event-driven systems
• Testing: integration, contract, non-functional and API testing, test automation (Playwright)
• DevSecOps: GitHub Actions, CI/CD, infrastructure as code, vulnerability management, secrets management
• Observability: CloudWatch, OpenTelemetry, distributed tracing, metrics, logging, alerting
• AI: LLMs, prompt and context engineering, AI coding assistants, MCP, RAG fundamentals, agent orchestration

Flexible working is supported, with at least half the time spent connecting in the Sydney or Melbourne office, plus options such as changed hours, part-time and job share. Applicants who are already part of the Commonwealth Bank Group must apply through the internal Sidekick portal.