Senior Software Engineer – iOS

Westpac New Zealand

Senior Software Engineer developing mobile applications for Westpac New Zealand. Collaborating with teams to innovate customer payment experiences and enhance software architecture.

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

Tech Stack

Tools & technologies

AndroidCloudiOSJenkinsSwift

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 mobile engineering, with strong expertise in iOS using Swift and a willingness to build capability in Android
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 mobile solutions using modern architecture patterns such as MVVM or MVP
Strong capability across testing, debugging and quality engineering practices, including automation tools such as XCTest and XCUITest
Experience with CI CD and DevOps practices, including tools such as Fastlane, Jenkins or cloud-based delivery platforms
Strong problem-solving skills, with the ability to simplify complex challenges and deliver practical, customer focused outcomes
Able to balance ideal engineering outcomes with delivery constraints and business outcomes
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

mobile engineeringiOSSwiftAndroidMVVMMVPtestingdebuggingquality engineeringautomation

Soft Skills

collaborationproblem-solvingknowledge sharingsupporting othersteam capability growthsimplifying complex challengesbalancing engineering outcomesjudgmentcoaching