Senior Software Engineer - Backend Contractor

Salary: Competitive Hourly Rate

About us

At Westpac New Zealand, our purpose is to Help New Zealanders Succeed. As a Bank and one of New Zealand's leading employers, we are passionate about helping people. We are taking action today to create a better future for the people who bank with us, work with us, invest in us or are part of our broader communities.

Mō te tūranga | About the Role

Join Westpac NZ as a Senior Backend Developer in our Product Engineering – Cards and Consumer Finance team. You’ll play a key role in designing, developing, and maintaining scalable applications using backend technologies. You’ll replace a critical legacy system with modern tech stack starting from scratch.

Ko tō mahi | What you’ll do

• Design, develop, test, and maintain applications and integration solutions.
• Troubleshoot and resolve technical issues, ensuring system stability.
• Implement changes aligned with design specifications and evolving business needs.
• Analyse recurring issues and lead continuous improvement initiatives.
• Maintain and refine support procedures to ensure resilience and minimise downtime.
• Contribute to release and deployment processes, ensuring accurate documentation and compliance.
• Implement automated testing and ensure high-quality code through code reviews and continuous integration practices.

Nā tāu rourou | What will you bring?

• At least 10+ years’ experience across API and Backend development
• Proficiency with server-side development (Java, Spring Boot, Kafka, IBM MQ).
• Experience in DevOps such as CI/CD pipelines, containerisation, and deployment automation.
• Experience using AI for design and development.
• Strong knowledge of database schema design, transactions, and queries.
• Exceptional influencing and communication skills, with the ability to guide individuals toward fast and effective outcomes.
• Strong problem-solving skills using systems thinking and analytical approaches.