Westpac New Zealand

Senior Software Engineer – Payments

Westpac New Zealand

full-time

Posted on:

Location Type: Office

Location: Pōneke • New Zealand

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Job Level

Senior

Tech Stack

AWSAzureJavaSplunk

About the role

  • Lead the design and implementation of solutions for international and high-value payment systems.
  • Drive delivery of engineering initiatives, ensuring quality through automated testing, safe deployment practices, performance monitoring, and readiness assessments.
  • Drive assessable devops practices and tooling which enabled all engineers to adopt “you build it, you run it”.
  • Collaborate within cross-functional teams to story map epics, estimate work, and manage risk to meet sprint goals , including close collaboration with digital channel, product, and design partners on customer‑initiated international payment journeys.
  • Ensure observability and operational excellence using Dynatrace and Splunk.
  • Promote best practices in engineering, including container orchestration, messaging integration, and secure API connectivity.
  • Mentor and support team members, fostering a culture of continuous learning and collaboration.
  • Stay current with industry trends and apply relevant innovations to improve engineering capabilities.

Requirements

  • At least 8 years of commercial experience with engineering with a strong focus on Java or similar languages such as C#
  • Proficiency in modern engineering practices such as contract first design, feature flagging and TDD
  • Proven experience in engineering platforms within complex, high-throughput domains —ideally in payments or financial services
  • Demonstrated full stack experience and mindset
  • Strong background in modern devops practices and tools, e.g. K8 , AWS , and Azure
  • Expertise in observability and monitoring using Dynatrace and Splunk
  • Demonstrated ability to lead delivery, solve complex problems, and influence across teams
  • Excellent communication skills with the ability to explain technical concepts clearly and empathetically
  • A collaborative mindset with a passion for mentoring and enabling others.
Benefits
  • 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
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
JavaC#contract first designfeature flaggingTDDfull stack developmentdevops practicescontainer orchestrationAPI connectivity
Soft Skills
leadershipproblem solvinginfluencecommunicationcollaborationmentoringcontinuous learning