Auckland, Auckland, New Zealand Hybrid Employment

Theta is hiring an Application Architect (.NET & Azure)

Responsibilities

  • Define and evolve application architecture across a mixed .NET estate (Framework 4.x → modern .NET up to .NET 10), setting the modernisation roadmap and ensuring new work follows clean, sustainable patterns while legacy components are uplifted incrementally.
  • Lead frontend-focused architecture for Angular-based SPAs — defining and governing the API interaction model, ensuring frontend squads have well-designed, stable, and versioned contracts to build against.
  • Design and govern API contracts for internal first-party APIs and integrations with third-party services operating within the customer's environment.
  • Create and maintain a pragmatic technical debt remediation roadmap — identifying what to address, in what order, and how to do it without stalling live delivery.
  • Define and enforce engineering standards: DDD, clean architecture, automated testing, CI/CD, and code review practices.
  • Facilitate architecture workshops with engineering squads, product owners, and customer stakeholders; provide technical governance through sprint reviews and release gates.
  • Mentor senior engineers and junior architects — through pairing, design reviews, code feedback, and knowledge sharing. Build capability, not dependency.
  • Be the technical voice in customer-facing conversations — able to explain design decisions clearly to non-technical management and defend them with confidence.

Requirements

  • Deep, hands-on experience with .NET Framework (4.x) and modern .NET (6 through 10) — and a track record of managing the gap between them in a live production environment.
  • Strong grasp of application modernisation patterns: strangler fig, anti-corruption layers, incremental migration — and knowing which to apply when.
  • Good knowledge of modern SPA frameworks (Angular preferred) — the confirmed frontend framework in this environment.
  • Sufficient depth to review component architecture, understand data-binding patterns, and collaborate meaningfully with frontend squads.
  • Strong API design and enterprise integration experience — REST, messaging patterns, and third-party API governance.
  • Experience designing and governing frontend-facing application architectures, including SPA/API interaction models and API contract management.
  • Azure-hosted application experience: App Services, Azure Functions, API Management, Azure SQL, Service Bus, and related PaaS tooling.
  • Solid grounding in web application security: authentication, authorisation, secrets management, and secure API design.
  • Proven ability to manage and incrementally reduce technical debt as part of an active delivery programme — not as a separate workstream.
  • Outstanding mentoring ability — a natural instinct to build up the people around you, not just solve problems yourself.
  • Strong client-facing communication — able to simplify technical complexity for non-technical executives and earn confidence through clarity.

Nice to Have

  • Knowledge of Zero-Trust security, DevSecOps, and FinOps.
  • Microsoft Certified: Azure Developer Associate or Azure Solutions Architect.
  • iSAQB Certified Professional for Software Architecture.

Benefits

  • Professional growth and learning opportunities.
  • Competitive salary (commensurate with experience).
  • Fully subsidised medical insurance for employees.
  • Heavily discounted medical insurance for immediate family of employees.
  • Enhanced parental leave payment – salary top-ups plus return-to-work incentive.
  • Hybrid working model (minimum 2 days in the office).
  • Volunteer days.
  • Internal Referral Incentive.
  • Staff Assistance Programme.
  • Annual Flu injections.
  • Sick leave from your first day on board.
  • Remote working options where practical and mutually agreed.
  • Daily fresh fruit basket, coffee machine, wide selection of teas and biscuits in all of our offices.

Additional Information

  • Only accepting applications from those already residing in Auckland with the relevant visas.
  • All potential employees will be required to consent to a Ministry of Justice criminal record check.
Required Skills
.NET Frameworkmodern SPA frameworksZero-Trust securityDevSecOpsFinOps. .NET Frameworkmodern SPA frameworksZero-Trust securityDevSecOpsFinOps.
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About company
Theta
A New Zealand-owned technology consultancy helping organisations transform through technology. They deliver smart, pragmatic, and impactful digital solutions.
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Job Details
Category other
Posted 15 days ago