# CONTRACT - Senior Integration Engineer - C#

> Datacom · Auckland, New Zealand (Hybrid) · Contract · Posted 2026-10-15

**Workplace:** hybrid

**Department:** App Cloud Application Solutions

## Description

### About the Role

**We're looking for an experienced Senior Integration Engineer with strong C#/.NET expertise and hands-on mobile engineering capability to join us on a contract engagement, with an immediate start strongly preferred.**

You'll work across backend integration and mobile applications, delivering secure, high-performing solutions in a complex enterprise environment.

This is a senior, hands-on engineering role requiring someone who can hit the ground running, work independently and contribute across both C# integration development and native Android and iOS engineering.

**To be considered, you must be based in Auckland and have current New Zealand working rights. Experience across both integration and mobile engineering is essential.**

### What You'll Do

-   Design, develop and maintain backend APIs, services and system-to-system integrations using C#/.NET.
-   Develop ASP.NET Web APIs with a strong focus on performance, security and reliability.
-   Contribute to native Android and iOS development using Kotlin and Swift.
-   Work closely with cross-functional teams to translate requirements into practical technical solutions.
-   Apply strong engineering practices, including clean code, testing, troubleshooting and code reviews.
-   Use Git and enterprise CI/CD pipelines to support reliable software delivery.
-   Investigate technical issues and contribute to production support and incident resolution as required.

### What You'll Bring

-   Extensive senior-level experience in C#/.NET integration engineering, including APIs, services and system-to-system integrations.
-   Proven experience developing secure, high-performing ASP.NET Web APIs.
-   Hands-on mobile engineering experience across **both Android using Kotlin and iOS using Swift**.
-   Strong software engineering practices, including testing, troubleshooting and code reviews.
-   Experience using Git and CI/CD pipelines within an enterprise environment.
-   The ability to work independently and take ownership of technical delivery.
-   Clear communication skills and confidence working with technical and non-technical stakeholders.

### It Would Be Great If You Also Have

-   Experience with .NET 10.
-   Previous financial-services experience.
-   Experience with REST APIs, microservices and enterprise integration patterns.
-   Experience supporting production systems and resolving incidents.

**If you're an Auckland-based senior engineer who combines strong C# integration expertise with hands-on Kotlin and Swift development, we'd love to hear from you.**

## Apply

[Apply at Datacom](https://apply.workable.com/datacom1/j/424089E7A9/apply)

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