Principal Software Engineer & Enterprise Platform Architect

Commonwealth Bank; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

Commonwealth Bank is seeking a Principal Software Engineer to shape technology strategy and architecture across enterprise platforms. You’ll guide multi-squad decisions, drive scalable, secure, and resilient solutions, and partner with product and business leaders to align technical direction with strategy.

You will influence engineering at scale, lead architectural reviews, and enable teams to move independently while maintaining platform consistency.

Qualifications

• Experience leading large-scale platforms and distributed systems.
• Proven track record shaping technology strategy across multiple teams.
• Deep expertise in cloud-native design and modern engineering practices.

Responsibilities

• Co-create and evolve technology strategy and roadmaps aligned to business objectives.
• Define architectural direction across platforms, services and systems.
• Guide modernisation and platform evolution, ensuring security and operability.
• Provide technical leadership across squads and domains.
• Mentor engineers and influence senior stakeholders.

Skills

Java / Spring Boot

Distributed systems

Cloud-native architecture

Technical leadership

APIs & integration

Observability & reliability

Cross-team collaboration

AI patterns

Education

Bachelor's degree in Computer Science

Tools

AWS

GitHub / CI/CD

LangGraph or similar

Job description

Commonwealth Bank is seeking a Principal Software Engineer to shape technology strategy and architecture across enterprise platforms. You’ll guide multi-squad decisions, drive scalable, secure, and resilient solutions, and partner with product and business leaders to align technical direction with strategy.

You will influence engineering at scale, lead architectural reviews, and enable teams to move independently while maintaining platform consistency.