Senior Data Engineer

Westpac New Zealand; Wellington; On-site; NZD 120,000 - 180,000; Full time

Benefits offered by this job

4 weeks holiday

Wellbeing leave

Purchased leave

Banking benefits

Development opportunities

Volunteer days

Job summary

Westpac New Zealand is seeking a Senior Data Engineer to blend hands-on software engineering with technical leadership and AI-driven innovation. The role splits roughly 60% hands-on development, 20% AI tooling, 20% leadership across engineering standards and mentoring.

You’ll design and deliver scalable data services, modern data engineering frameworks, and secure AI-enabled solutions, uplifting capability across the team while partnering with stakeholders to translate complex requirements into

Qualifications

• 5+ years' experience in Data, Software or Platform Engineering.
• 3+ years on cloud-based data platforms.
• Strong Python and SQL skills; Snowflake experience.
• Experience delivering end-to-end production data solutions.
• CI/CD, DevSecOps and automated testing experience.
• Ability to mentor and coach engineering teams.
• Experience with AI-enabled data services and APIs.
• Familiarity with AI tools like GitHub Copilot.

Responsibilities

• Design and deliver scalable data services and modern engineering frameworks.
• Lead AI-enabled data projects and uplift engineering capability.
• Mentor and coach engineers; promote best practices.
• Collaborate with stakeholders to communicate technical decisions.
• Ensure security, privacy and AI risk management throughout delivery.

Skills

Data engineering

Cloud data platforms

Python

SQL

CI/CD practices

DevSecOps

Technical leadership

AI-enabled data services

GitHub Copilot

Architecture design

Tools

Snowflake

APIs

GitHub Copilot

dbt

Airflow

Spark

Kafka

Terraform

Azure

TypeScript/React

Job description

Mō te tūranga | About the Role

We're looking for a highly skilled Senior Data Engineer to combine deep hands-on engineering expertise with technical leadership and AI-driven innovation.

We're looking for a highly skilled Senior Data Engineer to combine deep hands-on engineering expertise with technical leadership and AI-driven innovation. This is a senior engineering role where approximately 60% of your time will be hands-on solution and framework engineering, 20% focused on AI, GitHub Copilot and developer enablement, and 20% dedicated to technical leadership, standards, mentoring and coaching. You'll play a critical role in designing and delivering scalable data services, modern engineering frameworks, and AI-enabled solutions while helping uplift engineering capability across the wider team.

Nā tāu rourou | What will you bring?

• 5+ years' experience in Data, Software or Platform Engineering, with at least 3 years working on cloud-based data platforms.


• Strong hands-on expertise in Python, SQL and modern data platforms such as Snowflake.


• Experience designing, building and supporting end-to-end production solutions.


• Proven capability implementing automated testing, CI/CD pipelines and DevSecOps practices.


• Demonstrated technical leadership, including mentoring, coaching and promoting engineering best practices.


• Hands-on experience developing AI-enabled data services using Python, APIs and cloud data platforms.


• Experience leveraging GitHub Copilot and AI-assisted development tools to improve engineering productivity and delivery outcomes.


• Strong solution design and architecture skills, including the ability to communicate technical decisions to a range of stakeholders.


• Experience identifying and managing security, privacy and AI-related risks throughout the delivery lifecycle.

Highly Desirable

Experience with GitHub Copilot, Generative AI, Agentic AI, MCP integrations, LLM/RAG solutions, dbt, Airflow, Spark, Kafka, Terraform, Azure, TypeScript/React, and financial services environments.

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!

We encourage people from all walks of life to apply, including those who are neurodivergent, have chronic health conditions or disabilities – your attitude and passion are as important to us as your experience, qualifications and capabilities.

Applications Close

12 November 2026