Senior Backend Developer

5 days ago

Auckland, Auckland, New Zealand Randstad New Zealand Full time NZ$90,000 - NZ$120,000 per year

Senior Software Engineer - Backend (.NET, BFF, SDUI & GraphQL) - Contract

Join a leading enterprise as a Senior Backend Software Engineer to design and implement a critical Backend-for-Frontend (BFF) solution and implement Server-Driven UI (SDUI) for mobile applications. We are seeking a highly specialized contributor who is proficient in the .NET framework, GraphQL, and modern CI/CD practices. This role involves deep collaboration with a cross-functional app team in a hybrid environment. If you excel in architecting robust, scalable backend solutions, this contract is for you.

Key Responsibilities & Focus
The successful candidate will be a hands-on technical engineer, responsible for developing, maintaining, and enhancing the core backend architecture.

  • Design, develop, and maintain a Backend-for-Frontend (BFF) solution using the .NET framework.
  • Implement and manage Server-Driven UI (SDUI) capabilities tailored for mobile applications.
  • Work extensively with GraphQL (specifically Apollo GraphQL and Module Federation) to manage data and third-party service integration.
  • Manage the software development lifecycle using Azure DevOps and GitHub.
  • Develop and maintain robust CI/CD pipelines.
  • Ensure high code quality and security through tools like SonarQube and other security practices.
  • Collaborate effectively with a cross-functional application team on integrated solutions.

What You'll Bring

  • Platform Proficiency: Strong, proven proficiency in the .NET framework is required.
  • SDUI/BFF Experience: Commercial experience with Server-Driven UI (SDUI) development for mobile apps and a strong background in BFF architecture/design.
  • GraphQL Expertise: Deep expertise in working with GraphQL (Apollo GraphQL, Module Federation).
  • DevOps & Git: Solid understanding of Git fundamentals and practical experience with CI/CD pipelines using Azure DevOps and GitHub.
  • Code Quality: Experience using code security and quality tools like SonarQube.

  • Beneficial Skills:

  • Knowledge of cloud infrastructure (AWS, Azure).

  • Familiarity with observability (Dynatrace) and third-party services (Contentful, CommerceTools, Algolia).
  • Experience with Hot Chocolate GraphQL server and security tools (Orca, Snyk).
  • Experience with AI developer tools (GitHub Copilot) and mentorship/pair-programming.

Location & Engagement

  • Location: Central Auckland, New Zealand (Hybrid)
  • Start Date: January 2026
  • Engagement: Initial 6 months contract with a chance of extension

Apply Now
If you are a proven Senior Backend Software Engineer specializing in the .NET framework, BFF, SDUI, and GraphQL and are ready to contribute immediately, apply now or contact Amaan for more details:

At Randstad, we are passionate about providing equal employment opportunities and embracing diversity to the benefit of all. We actively encourage applications from any background.

Experience
5 years

Skills

  • NET Framework,Server-Driven UI (SDUI), GraphQL (Apollo/Module Fed.), Backend-for-Frontend (BFF), Azure DevOps/GitHub, CI/CD, SonarQube/Security Tools, Collaboration Software Dev Lifecycle

Qualifications

  • Bachelor Degree

education

Bachelor Degree&ICT

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