Staff Software Engineer - Consumer Cards

CommBank; Sydney; Hybrid; AUD 170,000 - 230,000; Full time

Job summary

Commonwealth Bank of Australia (CommBank) is seeking a Staff Software Engineer to own full-stack delivery for Consumer Cards. You will shape the engineering roadmap, mentor teams, and deliver scalable cloud-native solutions on AWS with Next.js and TypeScript.

The role offers hybrid work with significant collaboration across Sydney/Melbourne offices and a strong focus on modern development practices, AI-enabled tooling, and cross-squad alignment.

Qualifications

• Experience building front-end using Next.js and TypeScript.
• Experience designing scalable cloud-native back-end services (C#, .NET).
• Proven track record with AWS and microservices architectures.
• Familiarity with REST, GraphQL, and relational databases (PostgreSQL).
• Strong CI/CD, test automation and observability practices.
• Exposure to AI-assisted development and toolchains.

Responsibilities

• Lead full-stack delivery with end-to-end ownership from design to run.
• Shape long-term technical strategy and uplift engineering standards.
• Architect and implement scalable cloud-native solutions on AWS.
• Mentor engineers and contractors, driving performance and quality.

Skills

Next.js

TypeScript

C#

.NET

PostgreSQL

REST APIs

AWS

Microservices

GraphQL

CI/CD

Observability

AI tooling

Tools

GitHub Actions

Playwright

Terraform

Job description

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 collaborative 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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