Staff Software Engineer

About the role

The Commonwealth Bank is hiring a Staff Software Engineer in its Digitisation & Enablement Crew, based in the Sydney CBD area. This is a senior, hands-on role focused on designing and building production systems, shaping architecture and mentoring engineers. You will work across squads to influence how systems are designed, built and evolved.

Key responsibilities

• Design and build scalable microservices and APIs
• Contribute to architecture for enterprise-scale platforms and systems
• Improve engineering standards, code quality and secure development practices
• Support integration across internal and external platforms
• Build and run what you ship, embedding observability, reliability and resilience
• Contribute to CI/CD, automation and safe, frequent deployments
• Mentor engineers and uplift capability across the team
• Drive pragmatic, high-quality engineering decisions aligned to business outcomes

Required profile

• Genuinely hands-on, comfortable owning complex systems end-to-end
• Strong backend engineering capability (APIs, microservices, distributed systems)
• Experience contributing to or shaping enterprise-scale architecture
• Understands security, reliability and performance at scale
• Can connect technical decisions to business outcomes
• Thrives in collaborative environments and actively mentors others

Required skills

• Java / Spring Boot / Temporal / AWS native services
• AWS cloud-native architectures, Kubernetes, Docker
• CI/CD (GitHub, TeamCity Octopus), Infrastructure as Code (CloudFormation)
• Observability and monitoring tools
• Data: AWS data services, Snowflake, PostgreSQL, DocumentDB; event-driven architecture such as Kafka is beneficial
• AI-powered engineering: agentic AI architecture (RAG, autonomous agents, HITL), LLM gateways (PortKey), LLM tracing and telemetry (Honey Hive)