Senior Full Stack Engineer

Mō te Tūranga | About the Role

We are seeking multiple talented Senior Full Stack Software Engineer to join our team. In this role, you will be responsible for developing Westpac's digital applications while collaborating with cross-functional teams. Your expertise in both front end and back end technologies will be crucial in delivering high quality software solutions. This includes ongoing solution design, development, maintenance, and enhancement of features.

Ko tō mahi | What you'll do

• Participate in code reviews and ensure software engineering best practices are met.
• Analyse requirements and propose technical solutions.
• Design, develop, test, and maintain applications with high availability and performance in mind.
• Deliver sprint commitments on time and contribute to Agile development practices.
• Create, review, and maintain documentation throughout the SDLC.
• Conduct proof of concepts to identify optimal solutions.
• Use Jira and Confluence effectively for project tracking and collaboration.
• Respond promptly to production incidents by troubleshooting and providing solutions.
• Implement shift-left testing and automation practices to detect and resolve defects early.
• Work independently to design APIs and components with support from Architects.
• Collaborate with team members and stakeholders, incorporating feedback where appropriate.
• Adapt to changing priorities and demands while maintaining quality.
• Debug, resolve, and support technical issues as they arise.

Nā tāu rourou | What will you bring?

• ​At least 8 years of commercial experience in full stack development with a strong focus on Java.
• Proficiency with latest LTS JDK, Spring Boot (or other microservice frameworks), Hibernate, and OpenAPI.
• Understanding and experience with implementation of the test pyramid.
• Proficiency in front end technologies: HTML, CSS, JavaScript, TypeScript, React, Redux, Webpack.
• Micro Front End experience is beneficial.
• Experience in DevOps, including CI/CD pipelines, containerisation (Docker, Kubernetes), and deployment automation.
• Familiarity with automated testing frameworks such as Playwright, , and RestAssured.
• Solid knowledge across networking, database, and API.
• Experience with observability tools such as Splunk and Dynatrace.
• Ability to work independently to deliver solutions from basic requirements.
• Strong communication skills and ability to contribute effectively in team meetings.
• Strong analytical and problem-solving skills.
• Passion for best practices and producing high quality code.
• Experience debugging complex systems.

Westpac Hei Wāhi Mahi | Working at Westpac

In addition to immersing yourself in a supportive team environment, you'll receive some great job perks and benefits including:

• 4 weeks standard holiday + 5 additional days of wellbeing leave to support you to be your best
• Additional purchased leave options up to 4 weeks per year
• Banking benefits, insurance discounts and superannuation scheme
• Growth and development – we provide opportunities for development and promote internal mobility
• Recognition - we recognise and reward our star performers
• School holiday subsidy - help you balance work and family during school holiday
• 2 Volunteer days per year

Ko mātou tēnei | Our Organisation

At Westpac, we're working together to build a fairer and stronger New Zealand for our people, customers, and communities. For over 160 years we've been driven by our purpose to Create Better Futures Together.

What makes us unique are the incredible people we're lucky enough to have walk through our doors every day. The giant 'W' on our building doesn't just stand for Westpac – it says, double you. We're a place that values, rewards and recognises individuality. Where you can be your whole self, your true self, and your best self. We're recognised as a place where talent is developed, where passions are fuelled and where ambitions of all shapes and sizes thrive. And it all starts with you

Tono mai ināianei | Apply Now

Apply today with your CV and Cover Letter.

The people of Aotearoa, New Zealand hail from many cultures and backgrounds. At Westpac New Zealand, we draw on this enormous talent pool to cultivate a team rich in ability and empowered to reach its full potential. Our aim is to be brave challengers, celebrating our differences and relentlessly advocating for our customers. It starts with us – we believe that when we care deeply and do our best for our people, they'll do their best for our customers. We encourage people from all walks of life to apply, including those who are neurodiverse, have chronic health conditions or disabilities – your attitude and passion are as important to us as your experience, qualifications and capabilities.

Mahi tahi tātou, kaha ake tātou | Together Greater

Applications close:

30 November 2025