Staff Software Engineer

Commonwealth Bank

. Design and build secure, scalable and resilient services, APIs and customer experiences for digital banking .

Posted 10/23/2026full-timeSydney • AustraliaLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and building secure, scalable services and APIs for digital banking, with a strong focus on GraphQL schema design and microservices architecture. Proven ability to lead technical delivery, mentor engineers, and implement high-quality standards across development processes.

Highest-signal resume keywords

GraphQL Schema DesignMicroservices ArchitectureAWS ExperienceCI/CD ImplementationTechnical Leadership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

.NET/C#JavaNode.jsReactTypeScriptNext.jsUnit TestingIntegration TestingPerformance TestingAsynchronous Messaging

Soft Skills

Empathetic CommunicationMentoringProblem-SolvingAccountabilityCollaboration

Tools & Technologies

DockerKubernetesGitHub ActionsJenkinsInfrastructure as Code

Industry Keywords

Digital BankingCustomer-Facing SystemsEvent-Driven ArchitectureDistributed SystemsMonorepo

Tech Stack

Tools & technologies

AndroidAWSDistributed SystemsDockerGraphQLiOSJavaJavaScriptJenkinsKafkaKotlinKubernetesMicroservicesNext.jsNode.jsReactSwiftTypeScript.NET

About the role

Key responsibilities & impact

Design and build secure, scalable and resilient services, APIs and customer experiences for digital banking
Lead technical design and delivery of services and APIs
Own code from design through production, including testing, release and operational performance
Design, build and evolve GraphQL subgraphs and schemas
Contribute to critical implementation while decomposing complex problems into safely deliverable pieces
Guide architecture across multiple services and the native mobile side
Introduce patterns and frameworks that improve scalability, maintainability and performance
Mentor engineers across squads and provide candid code-review feedback
Improve automated testing, CI/CD, observability and automation
Use agentic engineering, prompt engineering and AI agent-first development
Collaborate with engineers, product owners, designers and partner teams
Shape engineering standards and technical practices across the squad and wider engineering group

Requirements

What you’ll need

Strong track record designing, building and running large-scale, customer-facing or business-critical production systems
Full ownership of development from coding through testing, release and production support
Thorough testing and commitment to quality
Experience working in a monorepo alongside a microservices architecture
Ability to navigate ambiguity, challenge assumptions and develop pragmatic solutions
Ability to combine hands-on engineering with technical leadership and influence without formal authority
Clear, empathetic communication and accountability beyond the immediate team
Enjoyment of mentoring engineers and maintaining high standards
Experience with some of .NET/C#, Java, Node.js or comparable backend technologies
GraphQL and subgraphs experience, including schema design, resolvers, federated/subgraph architectures and performance at scale
Experience with React, TypeScript or Next.js
Knowledge of microservices, distributed systems, event-driven architecture, Kafka and monorepos
Experience with REST, GraphQL and asynchronous messaging
Unit, integration, end-to-end, performance and non-functional testing
Awareness of native iOS/Swift and Android/Kotlin architecture
Experience with AWS, Docker, Kubernetes and Infrastructure as Code
Experience with CI/CD, GitHub Actions, Jenkins, automation and modern deployment practices

Benefits

Comp & perks

Accessible, inclusive and respectful workplace
Workplace support or adjustments for accessibility
Career development support for current Commonwealth Bank Group employees
Employee assistance via HR Direct and accessibility support contacts