Sophisticated Java Developer Role

Transformative Opportunities in Payments Technology

The Payment Domain is a key component of our Business Banking unit, extending its reach to every part of the bank. As a Senior Java Developer, you will be joining the Real Time Payments Execution Engine team, responsible for overseeing the suite of applications used for payment execution.

Our current applications are commercial off-the-shelf solutions provided by a vendor, but we have a future roadmap that includes building similar applications internally to better align with our strategic goals.

Make a Meaningful Impact

We are creating the bank of tomorrow today and require top developers who focus on delivering exceptional customer experiences and innovative solutions. Our Payments team is leading a transformative program to enhance customer experiences, driving innovation and exploring modern technologies in payment solutions.

As a Senior Java Developer, you'll own the end-to-end development lifecycle of payments platforms products based on mature DevSecOps standards, ensuring seamless integration and delivery across environments. Your responsibilities may include:

• Hands-on development and architecture of high-performance Spring Boot microservices in Java, capable of processing thousands of payment transactions per second with sub-second response times.
• Building fault-tolerant and self-healing payment systems using advanced Java concurrency patterns, reactive programming, and distributed system resilience techniques.
• Developing comprehensive automated testing suites including unit tests, integration tests, contract tests, and performance tests for payment microservices.
• Implementing event-driven payment architectures using Java-based message processing and streaming solutions for real-time transaction handling.
• Code reviewing, mentoring development teams, and establishing Java coding standards and best practices for payment system development.
• Designing, developing, and managing platform solutions that span on-prem and multi-cloud (AWS) environments.
• Leading CI/CD pipeline development and optimization.
• Automating operational tasks using scripting languages.
• Integrating observability tools to enhance system visibility and reliability.
• Managing the full DevOps lifecycle, from build to release, with a focus on security, scalability, and performance.

Requirements

• Proven experience in full cycle software development & delivery roles within cloud environments.
• Expert-level Java development skills (Java 11+) with extensive hands-on experience building enterprise-grade applications and deep understanding of JVM internals, garbage collection tuning, and performance optimization.
• Advanced Spring Boot and Spring ecosystem expertise for reactive programming, Spring Cloud for distributed systems, Spring Security for authentication/authorization, and Spring Data for database abstraction.
• Proven track record in designing and implementing microservices architectures from scratch, including service decomposition, API design, data consistency patterns, and inter-service communication strategies.
• Deep expertise in Java concurrency and multithreading, parallel streams, thread pools, lock-free programming, and reactive programming with Project Reactor.
• Advanced knowledge of design patterns and clean architecture principles with ability to write maintainable, testable, and scalable Java code.
• Hands-on experience with resilience libraries like Resilience4j, implementing circuit breakers, rate limiters, retry mechanisms, and bulkhead patterns in Java applications.
• Strong proficiency in Java testing frameworks including JUnit 5, Mockito, TestContainers, WireMock, and property-based testing for comprehensive test coverage.
• Proven experience leveraging AI-powered development tools to accelerate code generation and refactoring workflows.
• Strong hands-on expertise in AWS, CI/CD tooling, and scripting for automation.
• A deep understanding of observability practices and tools.
• Solid experience in end-to-end testing, including test automation and quality assurance practices.

Technical Skills: Java, Advance Spring Boot Microservices, AWS: EKS, Helm, Cloud Formation, CI/CD

At our organization, we support our people with the flexibility to balance work and personal life while maintaining at least half your time each month connecting with colleagues in office.

If you're already part of the Commonwealth Bank Group, you'll need to apply through internal channels to submit a valid application. We're keen to support you with the next step in your career.

Accessibility considerations are essential to us. If you require additional support please contact HR Direct for assistance.