Mō te tūranga | About the Role
We’re looking for a highly experienced Senior Data Engineer to join our dynamic team and help drive the development of scalable, high-performance data solutions. This role is hands-on and focused on building robust data pipelines, enabling real-time data processing, and contributing to engineering excellence across the data lifecycle.
As part of the Transaction Data Product (TDP) team within Technology Engineering, you’ll be working on a cloud-based, event-driven data platform that powers critical business and customer-facing services. Our team thrives on collaboration, innovation, and continuous improvement, and we’re passionate about delivering high-quality software and data products.
You’ll bring deep technical expertise, a strong problem-solving mindset, and a commitment to mentoring others and improving engineering practices.
Ngā Haepapa Matua | Key Responsibilities
Design, build, and maintain scalable and reliable data pipelines using Java/Scala, Kafka, and Python.
Ensure high availability, performance, and reliability across the data lifecycle.
Diagnose and resolve complex technical issues across development, testing, and production environments.
Apply effective quality assurance practices and contribute to continuous process improvement.
Collaborate with cross-functional teams to align data engineering efforts with business goals.
Lead and mentor engineers, fostering a collaborative and high-performance culture.
Evaluate and integrate new tools and technologies to enhance platform capabilities.
Work closely with external partners and vendors to ensure seamless delivery of data solutions.
Nā tāu rourou | What will you bring?
10+ years of hands-on experience in Java/Scala development.
Strong understanding of the JVM and its performance characteristics.
Proficient in Python for data engineering and automation.
Deep expertise in Kafka, with experience managing high-volume, high-velocity streaming data.
Solid experience with AWS or Azure, including cloud-native development and deployment.
Skilled in Docker and Kubernetes for containerization and orchestration.
Practical knowledge of Linux OS and networking fundamentals.
Advanced SQL skills and experience with relational databases.
Strong grasp of data modeling, distributed systems, and microservices.
Familiarity with Agile, DevOps, and CI/CD practices.
Proficient in Git and standard version control workflows.
Knowledge of security engineering and testing strategies.
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:
12 August 2025
