Staff Software Engineer - Consumer Cards

As a Staff Software Engineer role at the core of Consumer Finance, you will help build, simplify and modernise the products, processes and infrastructure that underpin CBAs cards offering. You will work on critical capabilities such as credit card Netbank next and commsee 2.0, transforming the whole user experience and cards journey. You’ll design and build scalable applications on AWS, while delivering modern and intuitive front end using TypeScript and Next.js, including emerging AI-powered experiences.

This role goes beyond hands-on delivery into technical leadership and strategic influence. You’ll help shape the engineering roadmap, drive technical uplift across squads, and raise standards in cloud-native design, full‑stack engineering and modern development practices. Partnering closely with senior and executive leaders, you’ll turn strategy into outcomes while mentoring engineers and contractors, and growing capability across the crew. The work is fast paced, highly cooperative and constantly evolving, with real customer impact at scale. If you’re motivated by solving complex problems and building technology people rely on daily, this is a role where your expertise truly matters.

See yourself in our team

The Consumer Cards Transformation crew is a tight‑knit, highly technical group within CBA’s broader Consumer Finance Domain, focused on building and evolving our Consumer card products and overall platform. This chapter owns critical card platforms and underlying BIAN based service domain APIs, that process millions of transactions every day, operating at scale,



under constant demand and with zero tolerance for failure. The team works end‑to‑end across modern, cloud‑based systems, covering card authorisation, clearing, cards administration and operation and cards inquiry, ensuring customers can use their cards for their day‑to‑day needs.

We’re interested in hearing from people who

Operate as aStaff Software Engineer (Full Stack) with full‑cycle, end‑to‑end ownership across design, build, run and optimisation with a "build and own it” attitude

Act as atechnical SME and engineering leader, shaping long‑term technical strategy while remaining deeply hands‑on

Design, build and operaterobust, scalable, cloud‑native solutions using Next.js, Typescript, GraphQL, .NET, C#, AWS

Influence and evolveplatform architecture, including microservices, event‑driven integrations and cloud‑native deployment patterns

Championengineering standards and best practices across software engineering processes

Leadhigh‑quality delivery through CI/CD, test automation, observability and strong DevSecOps practices

Bring a strongAI enablement mindset, with hands‑on exposure to AI‑assisted tooling and a clear drive to continuously upskill





ApplyAI‑assisted development and emerging agentic patterns to lift developer productivity and improve system design

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

Front End: Hands on Next.js (must have), typescript

Back End: C#, .NET, PostgreSQL or other relational databases, REST APIs

Cloud‑Native & Microservices: AWS services such as ECS, Lambda, S3 and RDS, microservices architecture, event‑driven systems

Quality Engineering & Testing: Integration testing, contract testing, non-functional testing, API testing, test automation frameworks, Playwright

DevSecOps & Automation: GitHub Actions, CI/CD, Infrastructure as Code, Vulnerability management and remediation, secrets management

Observability & Reliability: CloudWatch, OpenTelemetry, distributed tracing, metrics, logging, alerting and production support

AI Enablement & Assisted Engineering: LLMs, prompt and context engineering, AI coding assistants, MCP, RAG fundamentals, agentic AI concepts, agent orchestration

Working with us

We support our people with the flexibility to balance where work is done with at least half their time connecting in our Sydney or Melbourne 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.

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📌 Staff Software Engineer - Consumer Cards (City of Sydney)
🏢 Commbank
📍 City of Sydney