Senior .NET Developer - Core Platform & APIs

FindIT Recruitment; New Zealand; On-site; NZD 120,000 - 150,000; Full time

Job summary

FindIT Recruitment in Wellington is seeking a Senior .NET Developer to help build and modernise APIs and integrations across customer and staff systems as part of a major NZ financial services transformation.

You’ll own the full software lifecycle—from analysis and design to deployment and production support—working with stakeholders and engineers to deliver secure, reliable solutions in a high-visibility, complex environment.

Qualifications

• At least seven years of commercial software development experience.
• Strong experience with C# and .NET.
• Experience designing and developing end-to-end software solutions.
• Strong SQL knowledge.
• Experience with unit, integration and performance testing.
• Experience with CI/CD, DevOps practices and infrastructure-as-code.
• Experience working in cross-functional Agile teams.
• The ability to make sound technical and architectural decisions.
• Strong analytical and problem-solving capability.
• Experience working with complex integrations and interfacing systems.
• A strong focus on software security, reliability and maintainability.
• The confidence to work through ambiguity and influence technical decisions.

Responsibilities

• Design and develop high-quality software solutions using C# and .NET.
• Build APIs, backend services and integrations supporting customer and internal systems.
• Help integrate a new core platform with a wider technology ecosystem.
• Interpret business requirements and Agile stories, considering related systems and delivery channels.
• Contribute to application architecture, technical design and engineering standards.
• Develop secure, reliable and highly available applications.
• Build and improve CI/CD pipelines, infrastructure-as-code and DevOps processes.
• Implement automated unit, integration and performance testing.
• Support non-functional testing across availability, performance and security.
• Develop monitoring, telemetry, dashboards and alerting.
• Investigate production issues and perform root-cause analysis.
• Maintain and improve the quality, resilience and architecture of existing systems.
• Collaborate across engineering teams to ensure solutions work effectively across multiple systems.
• Share knowledge, support other developers and contribute to continuous team improvement.
• Challenge existing approaches and bring new ideas into the programme.

Skills

C#

.NET

SQL

CI/CD

DevOps

Agile

Architecture

Problem-solving

Security

Integration

Tools

AWS

REST

Job description

FindIT Recruitment in Wellington is seeking a Senior .NET Developer to help build and modernise APIs and integrations across customer and staff systems as part of a major NZ financial services transformation.

You’ll own the full software lifecycle—from analysis and design to deployment and production support—working with stakeholders and engineers to deliver secure, reliable solutions in a high-visibility, complex environment.