Staff Software Engineer - Full Stack

About the role

CommBank's Business Banking Technology team builds the platforms behind its business banking, including the native CommBiz apps for iOS and Android, the backend services, APIs and web frontends for enterprise clients. As a Staff Software Engineer you will sit in one squad and influence the whole CommBiz Mobile & Insight crew. This is a full-stack role with strong backend and web experience, and native iOS or Android app experience is a real plus.

Key responsibilities

• Own the technical direction and roadmap for your areas, working with product and delivery leads to turn business goals into technical plans
• Partner with the engineering manager on engineering-led initiatives such as automation and tooling
• Design and build microservices, BFF services, REST APIs, data access layers, third-party integrations and React/Next.js frontends
• Lead complex initiatives across squads, from proof of concept to production
• Set standards for testing, safe deployment, observability and security
• Mentor engineers through design reviews, pairing and mentoring, and share knowledge through guilds and internal writing
• Lead complex troubleshooting in production and join the on-call roster

Required profile

• Deep, hands-on full-stack experience shipping backend services and APIs and web frontends in production
• Experience designing enterprise-scale systems, including service boundaries, API contracts, relational and NoSQL data models, integrations and event-driven architecture
• Experience leading technical work across multiple teams
• End-to-end ownership of quality and reliability: automated testing, CI/CD, safe releases, logging, monitoring and incident response
• Treats security as part of the design, not a final check
• Mentors senior and mid-level engineers and improves engineering practice beyond their own team

Required skills

• Backend: C# .NET or TypeScript/Node.js
• Frontend: React/Next.js or Angular
• Bonus: native iOS (Swift) or Android (Kotlin), GraphQL, and building backends for mobile clients including BFFs and APIs
• Data: MSSQL, Oracle, DocumentDB, Snowflake
• Cloud and hosting: AWS, Azure, Kubernetes, Docker, CloudFormation
• CI/CD: GitHub Actions, TeamCity, Octopus, AWS CodePipeline, Azure DevOps
• Observability: Observe, Splunk; AI tools such as Claude and GitHub Copilot