Principal Software Engineer

Commonwealth Bank

. Own the domain’s technical strategy, including architecture direction, platform choices and build-versus-reuse decisions .

Posted 11/9/2026full-timeMelbourne • AustraliaLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack software engineering, including strong foundations in algorithms, data structures, and distributed systems. Capable of driving technical strategy, mentoring teams, and ensuring high availability and operational excellence in cloud-native environments.

Highest-signal resume keywords

Full-Stack Software EngineeringCloud-Native EngineeringAPI Design and IntegrationTechnical LeadershipOperational Excellence

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AlgorithmsData StructuresConcurrencyDistributed-System DesignAPI DesignRESTOpenAPIReactTypeScriptPython

Soft Skills

MentoringInfluencing Without Authority

Tools & Technologies

AWSKubernetesDockerGitHub ActionsArgoCD

Industry Keywords

Technical StrategyOperational ReadinessSecurity-First EngineeringEvent-Driven IntegrationLegacy-System Modernisation

Tech Stack

Tools & technologies

AWSCloudDockerJavaKotlinKubernetesPythonReactTypeScriptGo

About the role

Key responsibilities & impact

Own the domain’s technical strategy, including architecture direction, platform choices and build-versus-reuse decisions
Drive consolidation and decommissioning to reduce system and pipeline duplication
Establish reusable golden paths
Scale platforms from minimum viable products into resilient, highly available and enterprise-ready services
Set engineering standards across continuous integration and delivery, testing, observability, operational readiness and security
Provide hands-on technical leadership across the stack
Guide development of scalable services, well-designed APIs, backend-for-frontend layers and internal interfaces
Define reliable, observable and responsible approaches to AI and agentic systems with appropriate human oversight
Embed regulatory, control, security and privacy considerations into engineering decisions
Mentor senior engineers and lift engineering capability through influence, technical leadership and hands-on contribution

Requirements

What you’ll need

Strong computer-science foundations across algorithms, data structures, concurrency and distributed-system design
Proven experience owning technical outcomes across complete product or platform surfaces
Broad, full-stack software engineering experience
Experience designing and operating production services and APIs at scale
Experience with a modern typed language such as Python, Java, Kotlin or Go
Strong API, contract and integration-design capability
Experience with REST, OpenAPI, API gateways or equivalent technologies
Full-stack capability, including React and TypeScript or equivalent technologies
Experience with backend-for-frontend layers
Cloud-native engineering experience with technologies such as AWS, Kubernetes, Docker, GitHub Actions or ArgoCD
Experience with high availability and operational excellence
Experience with platform strategy, reusable capabilities, legacy-system modernisation, event-driven integration, observability, security-first engineering, or reliable AI and agentic systems
Ability to influence teams without relying on formal authority

Benefits

Comp & perks

Accessible, inclusive and respectful workplace
Support or workplace adjustments available
Career development opportunities
Support for employees through Sidekick (for existing Commonwealth Bank Group employees)