🇦🇺 Built for AustraliansBilbx
A cross-platform Flutter and Next.js receipt vault built for Australian tax compliance and warranty tracking.
- Role
- Full Stack Developer, across mobile, web and backend
- Period
- 2025 – Present
- Live
- bilbx.com↗
Overview
An AI-powered smart receipt vault for Australian tax compliance and warranty tracking. Features a cross-platform Flutter mobile client and a responsive Next.js web portal, synchronized via Firebase Data Connect and Cloud Functions. Includes interactive financial analytics charts, automated PDF generation, local cache synchronization, and subscription billing via RevenueCat.
How it's built
Cross-platform Flutter client
A single Flutter codebase targeting iOS and Android, paired with a responsive Next.js web portal so receipts captured on a phone are immediately available on the desktop.
Firebase Data Connect synchronisation
Receipt and warranty records sync through Firebase Data Connect and Cloud Functions, with a local SQLite cache so the app stays usable offline and reconciles once connectivity returns.
Financial analytics and PDF export
Interactive spending charts built with Recharts, plus automated PDF generation for producing tax-ready expense records from stored receipts.
Subscription billing
Subscription entitlements handled through RevenueCat, keeping purchase state consistent across the mobile clients and the web portal.
Technology stack
- Flutter
- Firebase Data Connect
- Cloud Functions
- Next.js
- SQLite
- RevenueCat
- Recharts
- Framer Motion
More work
- UseInvites — A referral and community invitation network for gig workers and creators, built on Next.js and serverless Postgres.
- Deft — A privacy-first Chrome extension that fills signup forms in one click, keeping personal data on the device.
- FairGo — A same-day logistics and delivery booking platform serving the Perth Metro area, built with Next.js and Stripe.
- Dataglint — A tech venture studio platform architecting scalable digital assets and B2B hardware ecosystems.
Building something similar?
I'm Hazem Elsawy, a Full Stack Developer in Perth, WA. If this is the kind of work you need, I'd like to hear about it.