Software that fits the business, built by people who have run one.
Platforms, customer portals, internal tools, integrations and modernisation of systems that have outgrown their spreadsheets or their vendor. Senior engineers only, fixed scopes, weekly demos, QA onshore in Australia.
The unglamorous software that makes a company run.
Platforms & portals
Customer, partner and supplier portals; multi-tenant SaaS; booking and marketplace platforms with payments, roles and reporting.
Integrations
Xero, MYOB, HubSpot, Salesforce, Shopify, Microsoft 365, ERPs and the long tail of APIs — with monitoring, retries and an audit trail.
Modernise & re-platform
Replace the legacy system without a big-bang cutover: strangler pattern, data migration rehearsed twice, rollback plan written down.
Internal tools & dashboards
Operations consoles, approvals, scheduling and reporting that replace the spreadsheet everyone is afraid to touch.
AI-ready by design
Event logs, clean data models and API surfaces so the agents and automations you add later have something solid to stand on.
Dedicated squads
A senior product lead plus engineers, monthly, inside your tooling. Scale up or down with 30 days notice.
Fixed scope. Weekly demos. No surprises on the invoice.
Discovery, priced and credited
Two to five days: workshops, system map, data review, risks. Output is a fixed-price scope you can take anywhere. Fee credited against the build.
Design before code
Clickable prototype and data model signed off before engineering starts. Changing a screen costs an hour here and a week later.
Build in weekly increments
Senior engineers, trunk-based development, automated tests, a demo every week. You always know what is done.
Harden and launch
Security scan (OWASP Top 10), load test, backup and restore rehearsal, runbook. Then launch, with us in the room.
Care & improvement
Monitoring, updates and a monthly improvement budget from A$1,200/mo — or hand it to your team with full documentation.
Real numbers, in AUD, before the first call.
Ranges reflect the last 12 months of fixed-price work. Your quote is fixed once discovery is done; if the scope changes, the price changes in writing before any work starts.
| Discovery 2–5 days · scope, data model, risks, fixed quote | A$3k – A$9k, credited |
| Feature or module Fixed-scope build on an existing system | A$28k – A$95k |
| Platform / portal Logins, roles, payments, integrations, reporting | A$55k – A$180k |
| Modernise / re-platform Legacy replacement with rehearsed migration | A$80k – A$250k |
| Dedicated squad Senior product lead + engineers, monthly | from A$14k/mo |
| Care & improvement Hosting, monitoring, updates, improvements | from A$1,200/mo |
The things people ask on the first call.
Stack we standardise on
TypeScript/React and Next.js, Node or .NET services, Postgres, Python for data and AI, React Native and Flutter for mobile, AWS and Azure in Sydney regions. We will work in yours if there is a reason.
What you own
All code, infrastructure and documentation, in your repositories and cloud accounts from day one. No lock-in, no escrow games.
What we will not do
Open-ended hourly engagements, junior benches, or a demo-grade build sold as production. If the timeline is not honest we say so before you sign.
Questions, answered straight
How do you fix a price without knowing everything?
We do not. A short paid discovery produces a scope precise enough to price. Anything genuinely unknown is carried as a named allowance, not hidden in the number.
Who actually writes the code?
Senior engineers employed by Sentriqa, led by an Australian product lead, with QA onshore. Our Manila Innovation Centre gives us capacity; it does not change who is accountable.
Can you take over a system another vendor built?
Yes. We start with a code and infrastructure review (two to five days), tell you honestly what state it is in, and give you a fixed plan to stabilise it before adding anything.
Is custom software eligible for the R&D Tax Incentive?
Often, where the work is genuinely experimental. We document the technical uncertainty as we go so your R&D adviser has what they need. See our grant-funded builds page.
What happens after launch?
Either a care and improvement retainer from A$1,200/mo, or full handover to your team with documentation and a recorded walkthrough. Your choice, written into the quote.
Bring us the system that is holding you back.
A fixed quote in days, not a proposal in weeks. Senior people on the call from the start.
Tell us what you need.
One form, one senior person replies. If we are not the right fit we will say so and point you somewhere better.