Senior Software Engineer - Cards and Payments

Auckland based opportunity. Fixed Term Contract - 24 Months. This is a key role within our D&T Cards and Payments Team. Kiwibank is undergoing a major technological transformation to meet the demands of 24/7 digital banking, and our Cards & Payments team is at the forefront. Join us to build and run modern scalable container‑based platforms and CI/CD pipelines in the cloud, enabling teams across Kiwibank to develop cutting‑edge, containerised workloads.

We are looking for a talented Senior .Net C# Software Engineer to work across the design and development of enterprise‑grade APIs on our brand‑new cloud platform. If you’re passionate about building high‑performance, scalable systems and want to make a real impact on how New Zealanders bank, this could be the perfect opportunity.

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• Minimum 5+ years of recent and hands‑on experience with C# and .Net Core development.
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• Proven experience designing, developing, and deploying micro‑services for cloud‑native platforms, at scale. Experience delivering applications to run on containers and orchestrating them using Kubernetes (AWS EKS or similar).
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• Experience in CI/CD practices: Drive and deliver via declarative deployment practices with automated quality and built in security.
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• Strong capability in designing and implementing micro‑services architectures, specifically for API development, including breaking down monolithic business processes into de‑coupled, reusable component‑based systems.
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• Proven experience working in Agile and DevOps environments, with a demonstrated understanding of iterative development, collaboration, and automation principles.
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• Effective verbal and written skills. Skilled at communicating complex information effectively to a range of different audiences. Effective presentation and facilitation skills with the ability to challenge, persuade and influence.
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• An understanding of banking and accounting processes and models.
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• Understanding Payment Cards Industry regulations, i.e PCI‑DSS.
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• Experience of contract‑first design of APIs using formats such as OpenAPI/Swagger/GraphQL for API descriptions and OAuth / zero‑trust design principles for authentication.
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Staff banking discounts, flexible working options, additional wellbeing leave and a wellbeing day a quarter to ensure our people are taken care of and can bring their best selves to work. Other benefits include health discounted banking and an incredible package for new parents.

We are proud to be a certified B Corporation, a Pride Pledge partner and the first bank in Aotearoa to get the Gender Tick. We are also an accredited Living Wage employer.