Principal Platform Engineer – AWS Cloud (Data Protection & Storage) Your Impact and Contribution As a Principal Platform Engineer, you will be at the forefront of our database and DevSecOps strategy, responsible for designing, implementing, and maintaining our database environments. You will play a key role in automating processes, enhancing security through DevSecOps practices, deploying monitoring tools, and maintaining high-quality documentation to ensure our infrastructure remains robust, resilient, and reliable. As part of the Data Protection & Storage (DPSS) crew, you’ll work with a highly skilled team of engineers and collaborate in an environment that fosters innovation and upholds engineering excellence.

In this solution-focused team, you will contribute to the ongoing delivery of world-class outcomes.

The Role This Principal Platform

Engineer role is a hands-on technical leadership position specialising in backup, restore, and cyber resilience within AWS. You will be accountable for the design and evolution of scalable, secure, and highly resilient backup platforms, with a strong focus on Commvault, AWS-native services, and air-gapped cyber recovery environments. You will set technical direction, establish repeatable patterns, uplift engineering standards, and actively mentor other engineers across the DPSS and broader cloud platform community.

Key Responsibilities Design and operate enterprise backup and restore platforms using Commvault on AWS

Engineer air-gapped and isolated recovery environments to support ransomware resilience

Build and optimise restore strategies, including cross-account recovery





Develop AWS infrastructure using infrastructure as code and DevSecOps practices

Work at expert level across AWS services including S3, EC2, RDS, CodeCommit, CodeBuild, CodeArtifact, Guard Duty, Wiz and others

Strengthen security, reliability, and observability of backup and recovery platforms

Provide principal-level technical leadership, design assurance, and mentoring, influencing platform direction across multiple squads and crews

Partner closely with security and risk stakeholders to uplift cyber resilience, threat modelling, and recovery assurance

Design repeatable testing strategies for backup integrity, restore confidence, and disaster recovery scenarios

Mentor and uplift engineers through coaching, design reviews, and shared engineering patterns

Accelerate value delivery and innovation by improving engineering velocity through the use of AI

Contribute to strategic technical decisions, trade-offs, and long-term platform roadmaps

What We’re Looking For Strong experience with Commvault backup and restore in enterprise environments

Proven delivery of air-gapped cyber backup or isolated recovery solutions

Deep AWS expertise, including RDS snapshot-based recovery

Expert-level capability across AWS cloud, CI/CD, and infrastructure as code





Strong security mindset with experience embedding DevSecOps and compliance controls

Ability to influence technical direction beyond a single squad or team, aligned to Principal Platform Engineer expectations

Why Join DPSS? Work on high-impact, board-visible cyber resilience and recovery platforms

Operate at principal level with real architectural influence

Be part of a deeply technical crew that values engineering excellence, automation, and security-first design

Flexible working, strong learning culture, and career pathways aligned to CBA’s engineering mastery framework

Working with us Whether you’re passionate about customer service, driven by data, or called by creativity, a career with CommBank is for you. We support our people with the flexibility to balance where work is done with at least half your time each month connecting in our Sydney office. We also have many other flexible working options available including changing start and finish times, part time arrangements and job share to name a few.

If this sounds like the role for you then we would love to hear from you. Apply today!

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: 14/08/2026

📌 Principal Platform Engineer (Sydney)
🏢 Commonwealth Bank
📍 Sydney