Backend Jobs in New Zealand

NewBe an early applicant APACSenior

A senior backend engineer in Auckland joins a brand-new digital squad at Southern Cross Health Insurance, designing and owning backend services, APIs, and Azure infrastructure for a platform serving nearly one million members. Day to day: frequent releases, test-driven development, and modern CI/CD with a focus on secure, reliable software.

Senior Backend Engineer (AI-Driven Platform)

Senior backend engineer at Walker Smith in Christchurch who designs and ships safe, scalable C#/.NET services powering AI agents, leads hard architecture and integration decisions, mentors mid-level engineers, and helps separate genuinely valuable AI use cases from hype.

Agentic AI AI C# .NET

NewBe an early applicant APAC

Walker Smith

3 days ago

Backend .NET Developer for AI-Powered APIs

An intermediate backend developer in Christchurch builds C#/.NET services and APIs, connecting an in-house language model to data within an agile team. The work focuses on AI-assisted features that model customer behaviour, cut manual tasks, and improve production quality.

Java Backend Engineer — Mandarin Proficiency

New APACFull-time

Despite the 'Java Backend Engineer' title, the posting actually describes a Chinese chef/cook role at Lanzhou Beef Noodle Ltd in Mt Eden, Auckland: preparing and cooking Chinese dishes, maintaining food hygiene, and assisting with kitchen operations, around 40 hours per week with possible weekend work.

North Island - Auckland Central Auckland

4 days ago

Senior Fintech Backend Engineer - Scale & API Reliability

New APACSenior

AKS API Azure CI/CD C# +2 skills

On-site senior backend role in Auckland: design, build, and maintain scalable C#/.NET backend services and APIs, contribute to architecture, and ensure performance and reliability in collaboration with engineering, product, and support teams. AKS, Docker, Azure, and CI/CD experience is highly valued.

Crossware Limited

4 days ago

Senior Backend Engineer - C#/.NET, Scalable Systems

New APACSenior

Crossware Limited in Auckland is hiring a Senior Backend Engineer to design, build, and maintain scalable C#/.NET backend systems in production, improving performance, reliability, and maintainability while collaborating with product and support teams.

MaiBand

4 days ago

Senior Backend Engineer – Healthcare Integrations (Remote)

New APACSenior

MaiBand is hiring a Senior Backend Engineer to build the platform connecting New Zealand's health system, working on FHIR integrations, APIs, authentication, and clinical data retrieval with external teams. Current focus is a Medtech ALEX API integration delivering medical data to paramedics, with remote, hybrid, or on-site options.

API Authentication FHIR

Westpac New Zealand Ltd

Software Engineer - Java backend

New APAC

Hands-on backend software engineer (Java) in Westpac NZ's Digital team, working in an Agile squad to build resilient customer-facing digital banking solutions, reduce technical debt, and improve engineering practices across the bank.

Agile DevOps Java React

Supaglu Pty Ltd

Senior Backend Engineer - Golang for Scalable Game Systems

Docker Go Kubernetes Linux Memcached +5 skills

Own the server architecture for game systems at Supaglu in Auckland: design, implement, and optimize scalable, high-performance microservices using Golang, PHP, and Linux, backed by MySQL/PostgreSQL, Redis/Memcached, and Docker/Kubernetes, while collaborating with designers, PMs, and frontend developers.

Supaglu Pty Ltd

Backend Developer

APACFull-time

API Api Design Containerization DevOps Docker +10 skills

Backend developer owning the backend architecture of game systems at a game development studio in Auckland: designing scalable microservices, building new features in Golang, maintaining legacy PHP, tuning MySQL/PostgreSQL, using Redis/Memcached caching, and deploying with Docker/Kubernetes on Linux.

Crossing Hurdles

Backend Engineer - Secure, Scalable APIs & Debugging

APAC

API C++ Java Node.js Python +2 skills

Crossing Hurdles is hiring a backend engineer to design and deliver scalable services and APIs, with a focus on security, code quality, and performance optimization. The role involves debugging and fixing bottlenecks using languages such as Java, Node.js, Go, Rust, TypeScript, Python, or C++.

AI4U

Senior Backend Engineer

APACContractSenior

Azure Cloud Design Patterns Hibernate Java +8 skills

A senior backend role designing and maintaining complex Java applications with Spring Boot, Hibernate, and SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB). The engineer also mentors developers, drives code quality, and works with product managers to turn requirements into technical solutions.

Magemen Limited

Mid-Level E-Commerce Back-End Developer (Shopify, Magento, BigCommerce)

APACMiddle

AI API AWS CI/CD Cloud +34 skills

Magemen Limited, an Auckland-based agency, is hiring a mid-level back-end developer to build APIs, integrations, and server-side logic for clients' e-commerce storefronts on Shopify, Magento, WooCommerce, and BigCommerce. Day-to-day work spans REST/GraphQL APIs, databases, DevOps, and heavy use of AI coding assistants. Remote, but must reside in the Auckland Region.

Arvion Services

Senior Backend Engineer - Fintech Payments Platform

Cloud Cloud Native Fintech

Senior Backend Engineer at a fintech payments platform in Auckland, owning end-to-end backend work across payments, multi-currency balances, onboarding, and compliance. The role emphasizes cloud-native architecture, scalable integrations, reliability, and mentoring other engineers.

Cgr Services

Senior Backend Engineer – Payments & Integrations

Senior backend developer designing, building, and maintaining scalable C#/.NET systems in production for thousands of customers, with a payments and integrations focus. Core technologies are C#, .NET, APIs, and Azure, including collaboration with product/support teams and modernizing legacy components.

API Azure Cloud C# .NET

Bnz

Senior Backend Engineer - .NET, Azure, AKS

Design, build, and maintain scalable backend services in C#/.NET, developing RESTful APIs and contributing to system architecture, with Azure and AKS in the stack. The role emphasizes production performance and reliability, modernisation of legacy systems, and cross-functional collaboration.

API C# .NET REST

Westpac New Zealand Limited

Senior Software Engineer - backend

Open 15d APACSenior

API Api Design Automation CI/CD Containerization +6 skills

Senior backend developer at Westpac New Zealand (a bank) who designs, builds and maintains scalable Java/Spring Boot applications and API integrations, with CI/CD automation, mentoring of junior developers, documentation and occasional after-hours support.

Westpac New Zealand Limited

Open 15d APACContractSenior

Senior Software Engineer - Backend Contractor

AI API Automation CI/CD Containerization +5 skills

Senior backend contractor on Westpac NZ's Cards and Consumer Finance product engineering team, designing, building, and maintaining scalable backend services and integrations while replacing a critical legacy system from scratch. Core stack is Java, Spring Boot, Kafka, and IBM MQ, plus DevOps practices like CI/CD and containerisation.

SecuritEase International

Open 15d APACFull-timeSenior

Senior Software Engineer (Back-End) - NZ

Airflow API BDD Cassandra CI/CD +26 skills

Senior back-end engineer designing and building scalable Java/Spring Boot microservices and data pipelines (Kafka, Postgres, Cassandra, Airflow) for a fintech platform, with testing, observability, and Kubernetes-based delivery. Role is on-site in Petone, Wellington or remote from anywhere in New Zealand or Australia.

Westpac New Zealand

Senior Backend Engineer, Payments & AI-Powered Systems

Open 15d APACSenior

Lead backend development of payments experiences at Westpac New Zealand, designing and building scalable, secure payment services in Java/Spring Boot. The role includes mentoring engineers and collaborating with product and platform partners within a cross-functional squad in Auckland.

Java Spring