Principal Full-Stack Engineer — AI & Cloud Platform Lead

Commonwealth Bank; Sydney; On-site; AUD 210,000 - 270,000; Full time

Job summary

Commonwealth Bank is seeking a Principal Software Engineer for the ATM network transformation. You will lead architecture decisions and drive secure, cloud-native engineering at scale, shaping how real-time data and cash-management platforms evolve.

You will mentor engineers, champion modern observability, and apply AI-powered approaches to accelerate delivery while ensuring production-grade reliability from day one.

Qualifications

• Principal-level architecture and systems-thinking across complex customer journeys.
• Deep Java and Spring Boot with full-stack breadth (TypeScript/React/Next.js/Node.js).
• Experience delivering cloud-native, distributed systems at scale with APIs and CI/CD.

Responsibilities

• Provide technical leadership to drive the ATM network transformation.
• Define target architecture and modernise legacy systems with cloud-native patterns.
• Mentor engineers and influence engineering direction across teams to improve reliability and delivery momentum.
• Champion Terraform, quality engineering, fail-safe design, REST APIs and observability.

Skills

Java

Spring Boot

AWS

Full-stack

Architecture

Cloud-native

Observability

AI/LLMs

Tools

Terraform

Job description

Commonwealth Bank is seeking a Principal Software Engineer for the ATM network transformation. You will lead architecture decisions and drive secure, cloud-native engineering at scale, shaping how real-time data and cash-management platforms evolve.

You will mentor engineers, champion modern observability, and apply AI-powered approaches to accelerate delivery while ensuring production-grade reliability from day one.