Senior Software Engineer - Full Stack

Mō te tūranga | About the Role
At Westpac New Zealand, we are committed to creating simple, safe and seamless banking experiences for our customers. Within our Payments Technology team, you will play an important role in delivering end to end solutions that support how customers interact with payments. 

You’ll be joining at a point where a lot is happening in parallel — new mobile and web experiences, shifts in how we work, and ongoing architectural change across Westpac. This requires strong adaptability, a pragmatic mindset, and the ability to deliver value in the face of ambiguity and evolving priorities. 

You will join a supportive, collaborative squad operating in a fast-paced delivery environment that values sharing knowledge, continuous learning, and working together. Balancing speed, quality, and risk is critical. You will play a key role in helping teams navigate this complexity while maintaining customer focus.

• Design, build and maintain mobile applications that deliver meaningful customer experiences in a fast-paced environment with evolving requirements and tight delivery timelines. 
• Collaborate with architecture and wider Payments team to align on and implement architectural changes while continuing to deliver new customer features. 
• Contribute to technical design and architecture decisions while supporting others in the team. 
• Work closely with product, platform and engineering partners to deliver end to end solutions. 
• Share knowledge, support others and help grow team capability. 
• Contribute to engineering practices across performance, security and reliability. 
• Identify opportunities to improve systems, processes and delivery approaches. 

Nā tāu rourou | What will you bring?

• 7+ years of experience in software engineering, with strong experience in full stack development, ideally using Java.
• Strong collaboration skill, with working across teams to align on shared goals, dependences and technical direction. 
• Experience working in complex environment where multiple initiatives are delivered in parallel. 
• Proven experience designing and building scalable, maintainable applications across front end and back-end systems.
• Strong capability across testing, debugging and quality engineering practices, ensuring reliable and high-quality solutions.
• Experience with CI CD and DevOps practices, including modern delivery pipelines and cloud-based platforms.
• Strong problem-solving skills, with the ability to work through complex challenges and deliver practical outcomes.
• Strong communication and collaboration skills, with a customer focused mindset, and integrates AI effectively into engineering workflows to improve quality and efficiency, demonstrates strong judgement on appropriate use, and coaches others on responsible AI practices.

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

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