Senior Software Engineer – Full Stack

Westpac New Zealand

Senior Software Engineer delivering full stack solutions in Payments Technology team at Westpac New Zealand. Collaborating on mobile and web experiences while supporting a fast-paced development environment.

Posted 6/11/2026full-timePōneke • 🇳🇿 New ZealandSeniorWebsite

Tech Stack

Tools & technologies

CloudJava

About the role

Key responsibilities & impact

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.

Requirements

What you’ll need

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.

Benefits

Comp & perks

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

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Hard Skills & Tools

software engineeringfull stack developmentJavascalable applicationsmaintainable applicationstesting practicesdebugging practicesquality engineeringCI CDDevOps

Soft Skills

collaborationproblem-solvingcommunicationcustomer focused mindsetknowledge sharingsupporting team capabilitytechnical direction alignmentjudgementcoaching