Senior Backend Engineer (AI-Driven Platform)

Walker Smith; Christchurch; Sur place; NZD 120 000 - 160 000; Plein temps

Résumé du poste

Walker Smith in Christchurch is seeking a Senior Software Developer to join a growing team. You will be the go-to for hard design decisions on integration, AI features, and how to ship safe, scalable backend services in C# and .NET behind AI agents.

You'll influence engineering practices as AI changes delivery speed and review scope, mentor mid-level engineers, and partner with analysts to separate valuable AI use cases from hype.

Qualifications

• 5+ years of commercial experience in C# and .NET, with senior ownership.
• Deep SQL Server knowledge, including performance tuning.
• Cloud experience with modern platforms.
• Practical AI delivery using LLM APIs and AI-enabled features.
• Proven mentoring and rigorous code review experience.
• Strong communication with non-technical stakeholders.
• Experience in integration-heavy systems.

Responsabilités

• Designing and building backend services and APIs in C# and .NET behind AI agents, conversational tools and automation across several business units
• Making design decisions on how new AI features sit within a complex, integration-heavy platform
• Building on an in-house language model and modern tools
• Owning review standards for AI-generated code, including manual first reviews, and helping the team catch what AI tends to get wrong, such as inefficient queries and database locking
• Coaching mid-level developers and lifting the capability of the wider team
• Working with analysts and business leaders to separate genuinely valuable AI use cases from merely exciting ones
• Balancing new feature delivery with keeping the existing estate healthy, with realistic estimates

Connaissances

C# and .NET

SQL Server

Cloud experience

AI delivery (LLM APIs)

Mentoring

Code review

Communication

Integration-heavy systems

Description du poste

Walker Smith in Christchurch is seeking a Senior Software Developer to join a growing team. You will be the go-to for hard design decisions on integration, AI features, and how to ship safe, scalable backend services in C# and .NET behind AI agents.

You'll influence engineering practices as AI changes delivery speed and review scope, mentor mid-level engineers, and partner with analysts to separate valuable AI use cases from hype.