Senior Backend Engineer - .NET, Microservices & Cloud

Chemist Warehouse Group; Auckland; On-site; NZD 90,000 - 130,000; Full time

Job summary

Chemist Warehouse Group in Auckland, NZ is seeking a Back-End Developer to design, build, and maintain robust backend services and APIs using C#/.NET, powering our NZ digital platforms.

You will collaborate with NZ and AU teams to deliver high-quality features, ensure security and performance, and contribute to evolving backend architecture in a fast-paced, inclusive team environment.

Qualifications

• Strong experience with C#, ASP.NET, .NET Core and SQL Server.
• Experience building enterprise-grade applications, APIs and integrations.
• Familiarity with .NET 8+, serverless technologies (Azure Functions, GCP Cloud Run) and modern backend patterns.
• Understanding of microservices, event-driven architecture, distributed systems and GraphQL.
• Experience with Docker, CI/CD pipelines (GitHub Actions, Azure DevOps) and Git workflows.
• Strong knowledge of relational and NoSQL databases.

Responsibilities

• Back-end development — Design, build, and maintain backend services, APIs, and integrations using C#/.NET.
• API & integration development — Build RESTful APIs, integrate with third‑party and internal systems, and maintain secure authentication/authorization (OAuth 2.0).
• Code quality — Write clean, testable, well‑documented code and participate in code reviews.
• Agile delivery — Collaborate with cross‑functional teams to deliver features, estimates, and technical insights.
• Support & optimisation — Troubleshoot production issues, improve performance, and maintain scheduled backend jobs.
• Team collaboration — Work closely with NZ and AU teams to support shared architectural standards and contribute to a positive team culture.

Skills

C#

.NET Core

ASP.NET

SQL Server

Docker

CI/CD

Git workflows

GraphQL

Microservices

NoSQL databases

Relational databases

Tools

GitHub Actions

Azure DevOps

Azure Functions

Job description

Chemist Warehouse Group in Auckland, NZ is seeking a Back-End Developer to design, build, and maintain robust backend services and APIs using C#/.NET, powering our NZ digital platforms.

You will collaborate with NZ and AU teams to deliver high-quality features, ensure security and performance, and contribute to evolving backend architecture in a fast-paced, inclusive team environment.