Home / Services / Custom Software Development
Notion Tech builds custom software for Australian businesses: systems shaped around the way you already work, not the other way round. We plan it, design it, build it in React, Node.js and Python, and support it after launch, the same way we run our own products.
2
SaaS products we run
Web + mobile
one codebase team
AUD
fixed-scope quotes
import { roster } from "@notiontech/core"
const week = await roster.plan({ clients, staff })
await billing.invoice(week) // claims ready
await payroll.export(week) // to Xero
If off-the-shelf tools force workarounds, a custom system removes them.
Job, booking, rostering and inventory systems that replace spreadsheets and double entry.
Secure logins where customers or workers see their own information, documents and tasks.
Live numbers from your systems in one place, with exports your accountant can use.
Approvals, reminders and hand-offs that happen on their own, with a clear audit trail.
Subscription software with billing, onboarding and admin, ready to sell to other businesses.
Old Access, Excel or PHP systems rebuilt on modern technology, with your data moved across.
Off-the-shelf software is the right choice for many jobs. Custom software earns its cost when your process is what makes you different, when staff spend hours copying data between tools, or when the subscription bill for five half-fitting apps keeps growing.
We start every project by mapping how work actually flows through your business today. That map usually shows a few steps that cost the most time or cause the most errors, and those are what the first version of the software fixes. The rest can wait.
Notion Tech runs two software products of its own, Rostery and AuditCore, used daily by Australian care providers. Client projects use the same stack and the same habits: typed code, automated tests on the risky parts, staged releases and monitoring after launch.
Front ends are built in React and Next.js with TypeScript. Back ends run on Node.js and Express with PostgreSQL, with Python where it is the better tool, for example document processing. Real-time features use Socket.io, payments use Stripe, and AI features use the leading AI models through secure server-side calls.
You own the code and the data
Hosted in Australia when you need it
Documentation and handover included
Support plans after launch
Rostery replaces separate rostering, timesheet, billing and payroll tools for NDIS and aged care providers. It includes a worker mobile app on iOS and Android, NDIS claim files and connections to Xero, QuickBooks and Employment Hero.
The same team that builds and runs Rostery builds your custom software.
Fixed scope, fortnightly demos, no surprises on price.
01
Workshops to map your process and agree the scope and price.
02
Clickable designs of the key screens before any code.
03
Two-week cycles with a working demo at the end of each one.
04
Data moved across, staff trained, go-live supported.
05
Support, monitoring and new features as you grow.
TypeScript
JavaScript
React
Next.js
Node.js
Express
Python
PostgreSQL
Socket.io
Tailwind CSS
Stripe
AWS
Docker
Still have a question? Talk to us.
It depends on scope. A focused internal tool can be a few weeks of work, while a full platform with mobile apps takes several months. After a short discovery session we give you a fixed-scope quote in AUD, so the price is agreed before building starts. Our pricing guide explains how we price.
Most first versions take 6 to 16 weeks. We release in stages, so the most valuable part is usually working within the first month or two.
Yes. You own the code, the designs and your data. We can host and support it, or hand everything to your own team.
Yes. We connect new software to tools like Xero, Stripe, QuickBooks, Employment Hero and your CRM, and we can import data from spreadsheets or older systems.
React, Next.js and TypeScript for the front end; Node.js, Express and Python for the back end; PostgreSQL for data; React Native for mobile apps. These are the same tools we use for Rostery and AuditCore.
Tell us what you need. You will get honest advice and a clear next step.
Free first call. No obligation.