Staff Platform Engineer (AWS)

Commonwealth Bank; Sydney; On-site; AUD 190,000 - 260,000; Full time

Job summary

Commonwealth Bank is seeking a Staff Platform Engineer to lead BB Companion platform architecture and secure AWS delivery. You will drive design, governance and cross-squad collaboration to elevate reliability, security and efficiency.

You will mentor engineers, enable scalable automation and help shape the AI-enabled customer experiences in the CommBank app for business customers, with strong emphasis on governance and responsible AI controls.

Qualifications

• Staff-level leadership across architecture, platform strategy and mentoring.
• Hands-on AWS platform engineering with Kubernetes/EKS, containers and cost control.
• Experience with Infrastructure as Code, scripting, CI/CD, GitOps and DevSecOps.
• Strong system design across APIs, integrations, observability and reliable operations.
• Experience embedding security, privacy, risk controls and vulnerability remediation.
• Clear communication and stakeholder alignment across product, engineering, data, risk and business teams.

Responsibilities

• Own BB Companion platform architecture, infrastructure and automation across squads.
• Lead technical direction, design reviews and cross-team integration.
• Enable secure AWS delivery through CI/CD, GitOps and IaC.
• Improve reliability, observability and resilience with SLOs and capacity planning.
• Improve developer experience through self-service and golden paths.
• Embed security, privacy, data governance and responsible AI controls.
• Mentor engineers and grow platform capability across squads.

Skills

Staff-level leadership

AWS platform engineering

Infrastructure as Code

System design

Security & risk embedding

Clear communication

Education

Cloud certifications

Tools

Kubernetes

AWS

CI/CD tooling

Job description

• You are Driven to stay ahead of cloud and platform engineering practices and motivated by building secure, scalable platforms that help engineering teams move faster. You shape architecture and multiply engineering effectiveness across squads.
• We are A growing engineering team within Business Banking Technology delivering BB Companion, an AI-powered customer experience that helps business customers understand their finances, access timely insights and take action with confidence through the CommBank app.
• Together we can shape resilient, automated platforms that help BB Companion scale safely for business customers. We can create reusable golden paths and measurable improvements in developer experience, reliability, security, cost, customer trust and responsible AI controls.

Staff Platform Engineer (AWS)

*Sydney or Melbourne location

• You are Driven to stay ahead of cloud and platform engineering practices and motivated by building secure, scalable platforms that help engineering teams move faster. You shape architecture and multiply engineering effectiveness across squads.
• We are A growing engineering team within Business Banking Technology delivering BB Companion, an AI-powered customer experience that helps business customers understand their finances, access timely insights and take action with confidence through the CommBank app.
• Together we can shape resilient, automated platforms that help BB Companion scale safely for business customers. We can create reusable golden paths and measurable improvements in developer experience, reliability, security, cost, customer trust and responsible AI controls.

Do work that matters

Join the Business Banking Companion team to engineer core AI-enabled customer and platform capabilities for CommBank Companion for Business. You will act as the squad technical lead and work across adjacent squads to deliver agentic AI capabilities into customer-facing Business Banking experiences. You will own platform architecture and reusable capabilities, guide key trade-offs, align integrations across the broader ecosystem and drive measurable improvements in adoption, delivery flow, reliability, cost, customer trust and controls.

See yourself in our team

Business Banking Technology is modernising how business customers engage with the bank by building BB Companion, an AI-powered experience in the CommBank app that helps customers understand what is happening in their business, explore options and take the next best step with confidence. The platform supports a growing portfolio of customer-facing and AI-enabled capabilities, including cashflow insights, business performance signals, conversational guidance, action pathways and safe integration with broader Business Banking expert capabilities.

You’ll work closely with Product Owners, Data Scientists, Principal Engineers, Business Banking Technology, AI platform teams and adjacent crews to deliver platform capabilities, improve engineering practices, and meet technology control, privacy and responsible AI obligations. You will influence architecture and roadmaps, align cross-team dependencies and embed secure-by-design, privacy, data governance, operational resilience and responsible AI controls.

What you’ll be doing

• Own BB Companion platform architecture, infrastructure and automation across squads.
• Lead technical direction, design reviews and integration across product, data and AI platform capabilities.
• Enable secure AWS delivery through CI/CD, GitOps, Infrastructure as Code, Kubernetes and EKS.
• Improve reliability, observability and resilience through SLOs, capacity planning, incident support and remediation.
• Improve developer experience through self-service, golden paths and measurable platform adoption.
• Embed security, privacy, data governance, responsible AI and agent safety controls.
• Set standards and apply Staff-level judgement to governance, incidents and complex trade-offs.
• Mentor engineers and grow platform capability across squads.

We’re interested in hearing from people who:

We know great candidates may not meet every requirement listed below. If you’re excited about this opportunity and believe your experience could add value, we’d love to hear from you.

Must have

• Staff-level leadership across architecture, platform strategy, complex trade-offs and engineer mentoring.
• Strong AWS platform engineering experience across Kubernetes/EKS, containers, networking, scalability, resilience, security and cost.
• Hands-on experience with Infrastructure as Code, scripting, CI/CD, GitOps and DevSecOps practices.
• Strong system design across APIs, integrations, automation, observability, SLOs and reliable operations.
• Experience embedding security, privacy, risk controls and vulnerability remediation into platform delivery.
• Clear communication and stakeholder alignment across product, engineering, data, AI platform, risk and business teams.

Nice to have

• Experience with cloud-native APIs, customer-facing digital services or conversational experiences.
• Exposure to AWS AI services, generative or agentic AI workloads, responsible AI and human oversight controls.
• Experience with internal developer platforms, golden paths, self-service capabilities or FinOps practices.
• Relevant cloud certifications, technical degree or equivalent practical experience.

If this sounds like you, apply today!

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