Theta, a New Zealand-owned technology consultancy, helps organisations transform through technology. With offices in Auckland, Wellington, Christchurch, and Tauranga, we work with leading organisations across Aotearoa to deliver smart, pragmatic, and impactful digital solutions.
Overview
We’re looking for a Senior Back-End Developer to join our Digital Practice . In this role, you’ll design and build scalable, secure, and high-performing server-side enterprise solutions using the Microsoft stack and cloud-native technologies.
Responsibilities
- Design, develop, and maintain robust back-end systems and APIs using .NET Core and C#
- Build cloud-native solutions using Microsoft Azure
- Collaborate with front-end developers to ensure seamless integration and performance
- Implement secure, scalable, and maintainable architectures
- Automate builds, tests, and deployments using CI / CD pipelines
- Participate in code reviews, Agile ceremonies and contribute to continuous improvement initiatives
- Troubleshoot and resolve technical issues across environments
- Mentor junior developers and contribute to knowledge sharing within the team
Must-Have
Extensive professional experience (10+ years) in back-end development of enterprise applicationsStrong experience with .NET Core, C#, and relational or NoSQL databases (e.g., SQL Server, PostgreSQL, or Cosmos DB)Experience designing, building and consuming RESTful APIsHands-on experience with Azure services (e.g., Azure App Services, API Management, Azure SQL, Cosmos DB)Understanding of software architecture, design patterns, and security best practicesExperience working in Agile environments (Scrum / Kanban)Excellent communication and collaboration skillsNice-to-Have
Experience with message-based architectures (e.g. using Azure Service Bus, Event Grid)Familiarity with containerisation (e.g., Docker, Kubernetes)Familiarity with CI / CD pipelines and build automation tools (e.g., Azure DevOps, GitHub Actions)Knowledge of DevOps principles and Infrastructure as Code (e.g., Bicep, Terraform)Experience with automated testingExposure to AI tools (e.g., GitHub Copilot, Cursor, Windsurf, Claude Code or Roo Code) to support developmentMicrosoft certifications (e.g., AZ-204, AZ-400)About Theta
Our team of 280+ experts span software development, data and insights, cloud transformation, integration, cyber security, and more. We’re proud to be a Microsoft and AWS partner , and we’re deeply committed to inclusivity, sustainability, and Te Ao Māori .
Values
Our people are our greatest asset.We conduct business ethically.Invention, imagination and creativity are the foundation for growth.We work with positive energy, enjoyment, humour and work / life balance.Excellence is our passion, and we deliver what we promise - or more!We strive to take a pragmatic approach to all of our activitiesWe value and appreciate our natural environment and seek to play our part to maintain itBenefits
Theta offers a family-friendly work environment with flexible work hours where practical; especially relevant for caregivers. We embrace gender equality and are committed to providing a supportive, diverse and inclusive work environment throughout our workplace. Theta is committed to giving back to the community and are avid supporters of Cure Kids.
Professional growth and learning opportunitiesA competitive salary (commensurate with experience)Fully subsidised medical insurance for employeesHeavily discounted medical insurance for immediate family of employeesEnhanced parental leave payment - salary top-ups plus return-to-work incentiveHybrid working model (minimum 2 days in the office)Internal Referral IncentiveStaff Assistance ProgrammeSick leave from your first day on boardRemote working options where practical and mutually agreedDaily fresh fruit basket, coffee machine, wide selection of teas and biscuits in all of our officesAccredited employer with INZJob Details
Seniority level : Mid-Senior levelEmployment type : Full-timeJob function : Information TechnologyIndustries : IT Services and IT ConsultingReady to take your career to the next level? We would love to hear from you!
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