Senior Software Engineer | Front End

Mō te Tūranga | About the Role

We are seeking an experienced Senior Frontend Engineer to join our team, working on digital experiences across Lending, Insurance, and Wealth products.

This role is frontend‑led and quality‑driven. You will design, build, and evolve high‑quality user interfaces that are accessible, performant, and maintainable. While your primary focus is frontend engineering, you are expected to operate with a strong software engineering mindset, understanding how frontend systems interact with APIs, platforms, and production environments.

As a senior engineer, you will have meaningful influence over frontend technical direction within your delivery scope. You will help shape architecture, uplift engineering standards, and support other engineers through example, feedback, and technical leadership.

Ko tō mahi | What you’ll do

• Design, build, and maintain high‑quality frontend applications using modern JavaScript and TypeScript frameworks.

• Take ownership of frontend implementation approaches within a feature set, initiative, or product area.

• Contribute to the evolution of shared frontend architecture, including micro frontend patterns and design systems.

• Collaborate closely with UX, product, and backend engineers to deliver cohesive end‑to‑end solutions.

• Lead and participate in code reviews, setting a high bar for code quality, readability, and maintainability.

• Make informed trade‑offs between usability, performance, technical complexity, and delivery timelines.

• Apply engineering best practices around testing, accessibility, performance, and reliability.

• Participate actively in technical design discussions, proposing pragmatic and sustainable frontend solutions.

• Support production systems by diagnosing and resolving frontend‑related issues.

• Contribute to technical documentation that supports long‑term maintainability and onboarding.

• Run or contribute to proof‑of‑concepts to evaluate new tools, patterns, or frameworks where there is clear value.

• Actively participate in Agile delivery practices and ceremonies.

• Deliver sprint commitments reliably while adapting to changing priorities.

Outcomes/ Deliverables

• High‑quality, maintainable frontend code aligned with agreed architectural and platform standards.

• Consistent, reusable UI patterns through effective use of design systems and component libraries.

• Frontend solutions that consider accessibility, performance, scalability, and operational impact from the outset.

• Clear, current technical documentation that supports development and ongoing support.

• Constructive technical leadership that helps raise frontend engineering standards across the team.

• Continuous improvement of frontend practices, tooling, and developer experience.

Nā tāu rourou | What will you bring?

• Extensive commercial experience in frontend engineering.

• Deep expertise in JavaScript, TypeScript, HTML, and CSS.

• Strong experience building applications with modern frontend frameworks, particularly React and its ecosystem.

• Demonstrated experience contributing to or maintaining component libraries or design systems.

• Practical experience with, or strong understanding of, micro frontend architectures.

• Solid understanding of web application architecture and how frontends integrate with APIs and backend services.

• Experience applying testing practices in frontend contexts, including unit and integration testing.

• Familiarity with CI/CD pipelines and modern DevOps practices for frontend applications.

• Strong problem‑solving and analytical skills, with attention to detail.

• Ability to work effectively from high‑level requirements while collaborating within cross‑functional teams.

• Clear communication skills and confidence contributing to technical discussions.

Desirable experience

• Exposure to containerisation, cloud platforms, or observability tooling.

• Experience or interest in native or full‑stack development.

• Experience working on large‑scale or long‑lived enterprise frontend 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:

9 May 2026