Business Banking Technology | Sydney or Melbourne
You are a deeply hands-on engineer who loves solving complex problems.
We are high-performing engineers rebuilding Small Business Banking from the ground up.
Together we’re building tomorrow’s business bank today.
We built Australia’s number one banking app — and then rebuilt it.
Now, we’re transforming the Small Business Banking experience within NetBank. We’re creating a modern, personalised digital platform designed specifically for business customers — distinct from retail and corporate banking.
This is a rare opportunity to shape a critical rebuild at scale, used by millions of customers.
See yourself in our teamAs a Senior Software Engineer, you’ll join a squad delivering the new Small Business Banking experience. You will play a key role in supporting architecture, raising engineering standards and hands-on engineering.
You will spend the majority of your time designing and building production systems, while influencing technical direction across the crew.
You will:
Design and develop scalable microservices and APIs
Define and influence architecture for enterprise-scale applications
Improve engineering standards, quality and secure coding practices
Guide integration with internal and third-party services
Contribute to safe deployments through CI/CD, automation and observability
Drive pragmatic, high-quality engineering decisions
Are genuinely hands-on and comfortable owning complex systems end-to-end
Have strong backend engineering capability (REST APIs, microservices)
Have designed or contributed to enterprise-scale architecture
Understand security, reliability and performance at scale
Thrive in collaborative environments and challenge ideas constructively
Care deeply about code quality, simplicity and long-term maintainability
We use a broad range of technologies. You don’t need all of them — but strong engineering fundamentals are essential.
Our ecosystem includes:
Backend
C# .NET Core, REST APIs, WebAPI
Microservices and API integration
Frontend
Next.js, React, Angular, TypeScript
Cloud & DevOps
AWS or Azure
Kubernetes, Docker
CI/CD (GitHub Actions, TeamCity, Octopus, Azure DevOps)
Infrastructure as Code (CloudFormation)
Logging & observability (Splunk, monitoring tools)
Data
MSSQL, Oracle, Snowflake
NoSQL / DocumentDB
Experience with event-driven architecture (Kafka) is beneficial.
If you’re a senior engineer who loves being deep in the code— we’d love to hear from you.Apply now.
We support our people with the flexibility to balance where work is done with at least half your time each month connecting in the office.
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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Skills Required
- Strong backend engineering capability
- Experience designing or contributing to enterprise-scale architecture
- Understanding of security, reliability, and performance at scale
- Experience with cloud technologies (AWS or Azure)
What We Do
Australia’s leading provider of financial services including retail, premium, business and institutional banking, funds management, superannuation, insurance, investment and sharebroking products and services. We are a business with more than 800,000 shareholders and over 52,000 employees. We offer a full range of financial services to help all Australians build and manage their finances.
