Custom Software Development

Custom Software That Fits Your Business. Built Faster With AI.

AI-enhanced development delivers your project 30–50% faster than traditional methods. Enterprise-grade architecture from a principal consultant with 30+ years of experience. Fixed-price projects. Direct senior expertise on every engagement — no juniors, no outsourcing.

Software development team building custom enterprise applications
Our Approach

Software Built Around Your Business — Not the Other Way Around

Off-the-shelf software forces you to change how you work. Custom software adapts to your processes, your data, and your competitive advantages. That is the difference between a tool and a strategic asset.

At Vairi Technologies Limited, every project is led by senior engineers and architects with 30+ years of collective enterprise software experience across insurance, financial services, healthcare, and government. You work directly with the people who architect and build your solution. No account managers. No project coordinators. No handoffs to offshore teams.

Our AI-enhanced development methodology means we use AI tools for code generation, testing, documentation, and quality assurance — not to replace engineering judgement, but to amplify it. The result: you get production-quality software in roughly half the time of traditional development, at a lower total cost, with the same (or better) architectural rigour.

What We Build

Five Ways We Can Help

From quick MVPs to full enterprise platforms — each engagement is scoped, priced, and delivered with complete transparency.

Rapid MVP Development

Validate your idea fast. We build functional, production-grade MVPs in 2–4 weeks — not months. AI-assisted code generation means you get more features for less budget, without compromising on architecture. Perfect for startups and new product lines.

NZD $15K–$35K 2–4 weeks

Legacy System Modernisation

Your old system still works — but it is holding you back. We modernise legacy applications incrementally: new interfaces on proven backends, API layers for integration, cloud migration when it makes sense. No risky big-bang rewrites.

NZD $40K–$120K 4–12 weeks

AI Integration and Enhancement

Add intelligence to your existing software. We integrate AI capabilities — natural language processing, document understanding, predictive analytics, intelligent search — directly into your workflows. Not a bolt-on; a genuine upgrade to how your software thinks.

NZD $20K–$80K 2–8 weeks

API Development and System Integration

Your systems should talk to each other. We design and build RESTful and GraphQL APIs, connect third-party services, create middleware layers, and build event-driven architectures. Clean documentation, robust error handling, and proper versioning included.

NZD $10K–$100K 2–8 weeks

Full Custom Platform Development

For businesses that need a complete, ground-up platform — multi-tenant SaaS products, complex workflow engines, industry-specific solutions. We architect for scale from day one: microservices, CI/CD pipelines, infrastructure-as-code, and ongoing support.

NZD $200K–$500K+ 6–12 months
How We Work

Our AI-Enhanced Development Process

A proven four-phase methodology that combines deep discovery with rapid, AI-accelerated delivery.

1

Discovery and Architecture

We start by understanding your business — not just your requirements. Stakeholder interviews, process mapping, competitive analysis, and technical constraints. This phase produces a detailed architecture document, technology recommendations, and a fixed-price proposal. No surprises downstream.

1–2 weeks
2

Design and Prototype

Interactive wireframes and clickable prototypes so you can see and feel the solution before a single line of production code is written. We validate user flows, data models, and integration points. You sign off on what gets built — and what it will cost.

1–3 weeks
3

AI-Enhanced Development

This is where our methodology diverges from traditional agencies. AI-assisted code generation handles boilerplate, tests, and documentation. Our senior engineer focuses on architecture decisions, business logic, security, and the nuances that AI cannot handle alone. Weekly demos keep you in the loop. No black boxes.

2 weeks – 6 months
4

Deployment and Growth

We deploy to production with CI/CD pipelines, monitoring, and alerting in place from day one. Post-launch, we offer ongoing support retainers for feature development, performance optimisation, and scaling. Your software grows as your business grows.

Ongoing
Technology Stack

We Choose the Right Tool for the Job

Technology-agnostic means we recommend what is best for your project — not what is trendy or what we happen to know.

Frontend

React, Next.js, Astro, TypeScript, Tailwind CSS

Backend

Node.js, Python, Go, .NET, Rust

Databases

PostgreSQL, MongoDB, Redis, Supabase

Cloud & DevOps

AWS, Azure, GCP, Docker, Kubernetes, Terraform

AI / ML

OpenAI, Claude, LangChain, TensorFlow, custom models

Integrations

Stripe, Xero, Salesforce, HubSpot, Zapier, custom APIs

Investment Guide

Pricing at a Glance

All projects are fixed-price after a paid discovery phase. No hourly surprises. No scope creep charges.

Service Investment Timeline
Rapid MVP Development NZD $15K–$35K 2–4 weeks
Legacy System Modernisation NZD $40K–$120K 4–12 weeks
AI Integration and Enhancement NZD $20K–$80K 2–8 weeks
API Development and System Integration NZD $10K–$100K 2–8 weeks
Full Custom Platform Development NZD $200K–$500K+ 6–12 months
Consulting / Advisory NZD $140/hr As needed

All prices in New Zealand Dollars (NZD), exclusive of GST. Exact pricing confirmed after discovery phase.

FAQ

Common Questions

How much does custom software development cost in New Zealand?
At Vairi Technologies Limited, fixed-price projects start from NZD $15,000 for a rapid MVP and range up to NZD $500K+ for full enterprise platforms. Exact pricing is confirmed after a paid discovery phase. All prices are in NZD, exclusive of GST.
How long does it take to build custom software?
A rapid MVP takes 2-4 weeks. Legacy modernisation takes 4-12 weeks. Full custom platforms take 6-12 months. Our AI-enhanced development process delivers 30-50% faster than traditional methods.
What technologies do you use for custom software?
We are technology-agnostic and choose the best tools for each project. Our stack includes React, Next.js, Astro, Node.js, Python, Go, .NET, PostgreSQL, MongoDB, AWS, Azure, GCP, Docker, and Kubernetes.
Do you offer ongoing support after launch?
Yes. Every project includes 30 days of post-launch support. We also offer ongoing support retainers for feature development, performance optimisation, and scaling as your business grows.
What is AI-enhanced software development?
We use AI tools throughout the development lifecycle — from architecture and code generation to testing and documentation. This amplifies our senior engineers' capabilities, delivering production-quality software in roughly half the time of traditional development.

Ready to Build Something That Actually Works?

Book a free consultation to discuss your project. We will give you an honest assessment, a rough budget, and a clear path forward — no obligation, no sales pressure.

Or call us directly: +64 21 1841 054