Commonwealth Bank
Staff Software Engineer - Full Stack / .NET , SQL, API
Commonwealth BankAustralia2 days ago
Full-timeEngineering, Information Technology
  • We're embarking on an engineering transformation with the key focus on quality engineering and automation.
  • You have knowledge that spans both development and operations, including coding, infrastructure management, system admin/engineering and DevOps Toolchains.
  • Together we will build tomorrow’s bank today, using world-leading engineering, technology, and innovation.

Do work that matters:

We're building tomorrow’s bank today, which means we need creative and diverse engineers to help us redefine what customers expect from a bank. Envisioning new technologies that are still waiting to be invented and reimagining products that support our customers and help build Australia’s future economy.

The Commbank Health – Software Engineering Chapter is where meaningful work meets national impact. We’re transforming Australia’s health payments ecosystem with a clear strategy: deliver secure, seamless and automated payment experiences that remove complexity for providers, insurers, Medicare and patients. This is technology that genuinely matters.

Our engineers work at the frontier, building modern .NET microservices, API-first integrations, cloud-native systems and high-performance payment platforms. By combining deep technical expertise with automation, advanced mobile capabilities and emerging AI, we’re redefining how health payments move through smarter workflows and frictionless, intelligent transactions.

You’ll build exciting and complex solutions and shaping AI-driven experiences that set new industry standards. This is purposeful engineering, real innovation and the chance of revolutionising healthcare payments in Australia.

See yourself in our team:

CBA Technology delivers secure, resilient digital banking by managing digital platforms, data, cyber, fraud and core technology infrastructure across the Group. It supports all divisions with reliable technology foundations while providing CBA’s 53,000+ people with modern tools that enhance collaboration and productivity.

Come and join the Commbank Health – Software Engineering Chapter that powers Australia’s health payments ecosystem, building the platforms behind fast, secure and seamless payments and claims for healthcare providers, insurers, Medicare and patients nationwide.

Joining this team means shaping trusted systems relied on by thousands of health businesses every day. You’ll collaborate with passionate engineers who love exploring AI-driven innovation, crafting reliable products and delivering industry-leading experiences that genuinely transform how healthcare moves. This is modern engineering with real purpose and your chance to build solutions that truly make a difference.

We’re interested in hearing from people who:

  • Lead the architecture and delivery of complex .NET/.NET Core microservices and APIs in AWS, setting the technical direction for our next-generation healthcare payments platform.
  • Own end-to-end engineering outcomes, from shaping solution patterns to designing, building, and operating products that solve high-value strategic and technical challenges.
  • Stay deeply hands-on, tackling the most complex coding problems, uplifting engineering practices across squads, and ensuring robust, high-quality, scalable delivery.
  • Design and optimise high-performance SQL database solutions, applying advanced tuning, indexing, and data-modelling strategies to strengthen system reliability and throughput.
  • Bring strong full-stack solution design expertise across Angular, React, and mobile-supporting frameworks to power seamless customer experiences across our Android ecosystem.
  • Drive intelligent automation and AI-enabled workflow optimisation, improving merchant onboarding, provider payments, and operational efficiency while shaping the future of our platform.

Tech Skills

  • Backend Engineering: Expert-level .NET / .NET Core mastery with C#, microservices, distributed systems, high-performance backend services, and advanced API architecture essential.
  • SQL Mastery: Advanced SQL engineering complex queries, indexing strategies, schema optimisation, performance tuning, and deep database enhancements that define what “good” looks like, essential.
  • Cloud Architecture: Proven AWS cloud-native design expertise across Lambda, ECS, API Gateway, EventBridge, DynamoDB, Aurora, and scalable cloud application hosting.
  • Full-Stack Capability: Experience across Angular and React, supporting mobile-facing capabilities and powering seamless mobile experiences is highly regarded.
  • DevSecOps Practices: Mature DevSecOps and CI/CD experience using GitHub Actions, Jenkins, Terraform, SonarQube, automated testing frameworks, and secure-by-design delivery patterns.
  • Security Engineering: Strong grounding in application, API, and data security, embedding encryption, shift-left automation, zero-trust principles, and threat-aware engineering.
  • Observability & Performance: Hands-on capability in logging, monitoring, tracing, profiling, and uplifting operational resilience and system performance at scale.
  • Systems & Solution Design: Confident ownership of scalable architecture, integration standards, cloud governance, design patterns, and resilient platform foundations.
  • AI & Innovation: Forward-thinking, AI-driven mindset with a hunger to explore emerging technologies, automate intelligently, and push engineering boundaries.
  • Technical Leadership: Excellent communicator who transforms complex challenges into elegant solutions, influencing teams and uplifting product and platform outcomes.

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: 03/02/2026

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