Senior Backend Engineer (Java/Spring Boot) — Scalable Systems

Westpac New Zealand Limited; Wellington; Hybrid; NZD 120,000 - 160,000; Full time

Job summary

Westpac New Zealand Limited is seeking a Senior Backend Developer to design, develop, and maintain scalable backend services as part of the Product Engineering – Cards and Consumer Finance team. You will replace a critical legacy system with a modern tech stack, starting from scratch, and contribute to automated testing and CI/CD practices.

You should bring 10+ years of API and backend experience, strong Java/Spring Boot, Kafka, and IBM MQ proficiency, and a solid DevOps mindset with

Qualifications

• 10+ years of API and backend development experience.
• Proficiency with Java, Spring Boot, Kafka, IBM MQ.
• Experience with DevOps, CI/CD, containers, and deployment automation.

Responsibilities

• Design, develop, test, and maintain backend applications and integration solutions.
• Troubleshoot and resolve technical issues, ensuring system stability.
• Contribute to release and deployment processes, ensuring accurate documentation and compliance.

Skills

AI in design

Systems thinking

Analytical thinking

Communication

Tools

Java

Spring Boot

Kafka

IBM MQ

Docker

Kubernetes

CI/CD

Job description

Westpac New Zealand Limited is seeking a Senior Backend Developer to design, develop, and maintain scalable backend services as part of the Product Engineering – Cards and Consumer Finance team. You will replace a critical legacy system with a modern tech stack, starting from scratch, and contribute to automated testing and CI/CD practices.

You should bring 10+ years of API and backend experience, strong Java/Spring Boot, Kafka, and IBM MQ proficiency, and a solid DevOps mindset with