Technical Lead (Architecture Focus) - Full Stack (Contract)

About this role We are Theta , a New Zealand‑owned technology consultancy helping 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. We’re looking for a senior Technical Lead (Architecture Focus) – Full Stack to join a customer‑facing delivery team supporting a major global customer in Auckland. This is a 6‑month plus contract opportunity, a hands‑on software architecture and leadership role focused on modernising a mixed .NET/Angular estate, shaping architecture patterns for Azure‑hosted applications, and lifting engineering standards across the team. You’ll work closely with engineers, solution architects, product stakeholders, and customer leadership to define a pragmatic path from legacy to modern. While a significant part of the role involves application architecture and technical direction, this is fundamentally a full‑stack leadership role where you will work side‑by‑side with engineers and stay close to delivery. Key Responsibilities Define and evolve application architecture across a mixed .NET estate, from legacy .NET Framework 4 through to modern .NET Set the modernisation roadmap, ensuring new work follows clean, sustainable patterns while legacy components are uplifted incrementally. Lead full‑stack technical direction across backend, frontend and integration boundaries. Shape SPA/API integration patterns, ensuring frontend squads have well‑designed, stable and versioned contracts to build against. Facilitate workshops with engineering squads, product owners, and customer stakeholders, and provide technical guidance through sprint reviews and release gates. Be the technical voice in customer‑facing conversations—able to explain design decisions clearly and confidently to non‑technical stakeholders. What to Do in the First 6–12 Months Help define a pragmatic modernisation roadmap across the .NET estate Improve adherence to software development best practices, including API consistency, versioning, and integration governance Lift engineering standards across architecture, development, and CI/CD practices Help reduce priority technical debt without slowing delivery Become a trusted technical adviser to both the team and the customer Skills and Experience – Must‑have Deep, hands‑on experience with modern .NET and legacy .NET Framework in a commercial environment Strong full‑stack experience (Angular emphasis), with the ability to work effectively across backend, frontend and integration concerns. Good knowledge of a mainstream SPA framework (preferably Angular). You do not need to be a frontend specialist but must be able to work effectively with Angular squads, review component architecture, understand data‑binding patterns, and shape robust SPA/API integration patterns. Proven technical leadership across engineering teams, including mentoring, decision‑making and setting delivery standards. Azure‑based experience, including App Services, Azure Functions, API Management, Azure SQL, Service Bus, and related PaaS tooling. Solid grounding in web application security and secure API design. Strong client‑facing communication skills and ability to communicate with executives and other non‑technical stakeholders. Skills and Experience – Good to have Knowledge of Zero‑Trust security, DevSecOps and FinOps. Microsoft Certified: Azure Developer Associate or Azure Solutions Architect. ISAQ Certified Professional for Software Architecture. Benefits A competitive rate (commensurate with experience) Hybrid working model (from a minimum of 2 days in the office) Internal Referral Incentive Staff Assistance ProgrammeRemote working options where practical and mutually agreed Daily fresh fruit basket, coffee machine, wide selection of teas and biscuits in all of our offices We are also an accredited employer with INZ Please note: We are only accepting applications from those already residing in Auckland with relevant visas. All potential employees will be required to consent to a Ministry of Justice criminal record check. #J-18808-Ljbffr