Contractor SaaS
Lean, focused web apps for solo operators and small crews: quoting, scheduling, job tracking and invoicing that fit the way work actually happens on site.
Software for the construction industry · Christchurch NZ
Software built for the people who build things.
Kokirikiri Digital designs and ships full-stack web apps for the construction industry, from lean tools for solo contractors to project-management platforms for growing crews. One developer, whole stack, engineered fast and secure.
// Ask the studio agent
100% New Zealand owned
Full-stack, one point of contact
Agentic-AI accelerated delivery
Built in the trade, for the trade
// Services
What I build
From a single job-tracking tool to a full platform, priced and scoped to what your business actually needs.
Project-management platforms
Bigger builds, multiple sites, multiple crews. Central platforms for programme tracking, documents, RFIs and cost visibility, connected to the tools you already run.
Full-stack web apps & sites
Concept to hosting, handled by one person. Design, front end, back end, database and deployment without agency handoffs or vendor finger-pointing.
Integrations & odd jobs
API integrations, automations, fixes, and forms that will not behave. No job too odd; clear scope, fair price, useful outcome.
// The edge
Why work with me
Two things most dev shops cannot offer at once.
01
I actually know the industry
You will not spend the first three meetings explaining how a build works, what a variation is, or why the programme matters. I have worked in and around the trade, so the software gets scoped around real site workflows.
02
Agentic tooling, done safely
I build with modern agentic coding tools, which means you get working software faster and for less. Every line is human-reviewed with security front of mind: speed from automation, safety from experience.
// Process
How it works
Straightforward, no surprises, obligation-free to start.
STEP 01
Scope
A free chat about the problem. We nail down what's actually needed and what it's worth.
STEP 02
Design
Clear designs you can react to before a line of code is written. No black boxes.
STEP 03
Build
Agentic-accelerated development with human review at every step. Fast and secure.
STEP 04
Ship & support
Deployed, hosted and maintained. Same person who built it still picks up the phone.
// Work
Selected work
Case studies are on the way. In the meantime, I am happy to walk you through recent projects on a call.
[ contractor quoting tool ]
Coming soon
[ project dashboard ]
Coming soon
[ integration / automation ]
Coming soon
// About
One developer,
the whole stack.
Kokirikiri Digital is a Christchurch-based, New Zealand-owned software studio. I take on subcontract work and my own projects, and I am increasingly focused on building software for the construction industry, where I understand the work as well as the code.
When you hire me you deal with one person from first call to final deploy. No account managers, no handoffs, no guessing who owns the bug.
Rawikitua Charles Isherwood
Director & lead developer
// Source
The studio, in source
No jargon, no fluff. Here's exactly what you're hiring: read it like you'd read a config file.
OK Plain-English scope, priced up front
OK One developer owns the whole build
OK Shipped fast, reviewed for security
// studio.config.ts - what you're hiring
export const kokirikiri = {
studio: "Kokirikiri Digital",
based: "Christchurch · Aotearoa NZ",
owned: "100% New Zealand",
focus: ["construction software", "web apps"],
builds: {
contractorSaaS: true,
projectPlatforms: true,
integrations: true,
oddJobs: "always welcome",
},
method: {
stack: "design → code → hosting",
tooling: "agentic, human-reviewed",
security: "front of mind",
contact: 1, // one person, start to finish
},
ship() {
return "fast · secure · on time";
},
};
// Contact
Let's build something.
Tell me about the project, or the odd job. I will come back with honest thoughts and an obligation-free quote.
Thanks — message ready
Your email app should open with the message filled in. For anything urgent, call +64 27 372 3803.