Madsun Media is a registered Australian agency building Next.js, React, and Node.js web applications for businesses nationwide. AWS Sydney hosting, WCAG 2.1 AA accessibility, full Australian Privacy Act compliance — transparent AUD pricing, fast delivery, no lock-in.
Australian business hours (AEST/AEDT) — Monday to Saturday.
AU Web Apps Built
Avg Uptime SLA
MVP Delivery
AUD Pricing, No FX
What's Included in Every AU Custom Web App Build
Six end-to-end engineering deliverables that cover every layer of a production-ready Australian web application.
Next.js / React Frontend
Server-side rendered (SSR), statically generated (SSG), or hybrid Next.js 14 App Router frontends with React Server Components — built for performance, SEO, and accessibility. TypeScript throughout, Tailwind CSS or CSS Modules, and a Storybook component library for your Australian team to maintain. All code is yours — no vendor lock-in.
REST or GraphQL API Backend
Node.js APIs built with Express or NestJS (REST) or Apollo Server (GraphQL) — type-safe, documented with OpenAPI/Swagger, and deployable as containers on AWS ECS Fargate, Render, or Railway. We design APIs that are versioned, rate-limited, and observable from day one, with structured logging to AWS CloudWatch or Datadog AU region.
Database Design & Implementation
Relational databases (PostgreSQL on AWS RDS Sydney or PlanetScale) for structured AU business data, or document stores (MongoDB Atlas Sydney) for flexible schemas. Prisma ORM for type-safe queries, migration management, and seed scripts. Database backups to Australian S3 with point-in-time recovery configured from launch.
Authentication & Authorisation
Auth.js (formerly NextAuth), Auth0, Clerk, or custom JWT/session auth — with role-based access control (RBAC) for your AU users, magic link or OAuth social login, multi-factor authentication (MFA), and session management compliant with the Australian Privacy Principles. SSO integration (SAML/OIDC) available for enterprise AU clients.
CI/CD Pipeline
GitHub Actions or Bitbucket Pipelines CI/CD: automated testing (Jest, Playwright E2E), linting, type checking, Lighthouse CI performance budgets, Docker builds, and zero-downtime deployments to AWS Sydney or Vercel. Preview environments for every pull request so your AU stakeholders can review changes before they go live.
AU Cloud Hosting & Performance Monitoring
Production deployment to AWS Sydney (ap-southeast-2) — EC2/ECS Fargate, RDS, S3, CloudFront CDN, and Route 53 — with Vercel or Cloudflare as the frontend edge. Uptime monitoring via Better Uptime or Checkly with AEST-hours alerting. Application performance monitoring (APM) via Sentry or Datadog so you can see every error and slow query in real time.
Why Australian Businesses Trust Us for Custom Web Apps
Three non-negotiable advantages for Australian web app clients — compliance, data sovereignty, and accessibility — delivered by a local team that understands Australian business requirements.
WCAG 2.1 AA — Australian Accessibility Requirements
WCAG 2.1 AA is the accessibility standard referenced in Australian government contracts, the Disability Discrimination Act, and increasingly in enterprise procurement requirements. We run automated axe-core audits and manual VoiceOver/NVDA screen reader testing on every build, and deliver a compliance report at launch. Government and ASX-listed clients: we also offer WCAG 2.1 AAA gap analysis.
AWS Sydney — Data Sovereignty for Australian Clients
Deploying to AWS ap-southeast-2 (Sydney) keeps your Australian users' data on AU soil — important for Privacy Act compliance, healthcare data under the My Health Records Act, and financial data subject to APRA prudential standards. We architect AWS environments for AU data residency from day one, not as an afterthought.
Australian Privacy Act Compliance Architecture
We document privacy design decisions in every project handover — data collection notices, consent management, encryption at rest and in transit, data deletion workflows, NDB scheme readiness, and clear data-handling disclosures. For health and fintech clients we layer on sector-specific requirements (My Health Records, CDR, APRA CPS 234).
Our Custom Development Tech Stack
We pick the right tool for your AU business requirements — not what is convenient for us. Here is the stack that powers most of our Australian custom builds.
Next.js 14
App Router, Server Components, SSR/SSG — our primary framework for AU marketing sites and web apps.
React 18
Concurrent features, Suspense, and Server Components for interactive AU dashboards and SPAs.
Node.js / NestJS
Type-safe REST and GraphQL APIs for AU SaaS backends — deployed on AWS Sydney ECS Fargate.
PostgreSQL / Prisma
Relational database with type-safe ORM on AWS RDS Sydney — for AU business data that needs ACID guarantees.
AWS Sydney
ap-southeast-2: EC2, ECS Fargate, RDS, S3, CloudFront, SES — AU data sovereignty, low latency.
Vercel / Cloudflare
Edge-deployed Next.js with AU PoPs for marketing sites and frontends that need <100ms TTFB nationwide.
Our 4-Phase Custom Development Process
From technical discovery to production launch — an agile, AEST-paced process with fortnightly sprint demos and full transparency throughout.
Discovery & Architecture
Stakeholder workshops in AEST hours, user story mapping, data model design, API contract definition, tech stack decision, and a written technical spec you own before a single line of code is written.
Design & Prototyping
Figma designs for all key screens with interactive prototype. WCAG 2.1 AA colour and typography audit. AU user flows validated with 3-5 AU target users before engineering starts.
Agile Build in AEST Sprints
2-week sprints with a working build deployed to staging every fortnight. Weekly AEST review calls, Loom walkthroughs, and a project Notion/Linear board you can read at any time.
Test, Deploy & Handover
Automated Jest unit tests, Playwright E2E on AU-region staging, Lighthouse CI performance budgets, Sentry error monitoring, and a full technical handover document. 30 days free post-launch support included.
Australian Custom Web App Projects
A sample of recent custom Next.js and React builds for Australian businesses — SaaS platforms, dashboards, and fintech applications with real production metrics.
Brisbane, QLD
Next.js SaaS — Tradie Job Management Platform
- 2,400 AU tradie users in 6 months
- Core Web Vitals: LCP 1.1s, CLS 0
- PWA: 64% install-to-home rate
- AWS Sydney uptime: 99.97%
Sydney, NSW
Custom React Dashboard — Multi-Clinic Patient Portal
- WCAG 2.1 AA: 100% compliance
- AWS ap-southeast-2 data residency
- 12 clinic locations onboarded
- Patient load time: 0.9s avg
Melbourne, VIC
Next.js + Node.js API — Loan Origination Platform
- AUD $18M loans processed month 1
- APRA CPS 234 compliant
- Auth0 SSO for 340 brokers
- API response avg: 48ms p99
Transparent AUD Pricing
AUD-priced custom web application builds — from a scoped MVP to a full enterprise SaaS platform. All costs are broken down in writing before development starts.
Scoped MVP in 8 weeks
Full-featured web application
Complex SaaS or enterprise app
Monthly Engineering Retainer
Ongoing engineering retainer — month-to-month, no lock-in
All prices in AUD, exclusive of GST. Third-party costs (AWS, Vercel, auth providers, monitoring tools, domain) billed directly by their providers. 40% deposit on project start, 30% at mid-point, 30% on launch. Bank transfer (AUD), Wise, or Stripe accepted.
Australian Custom Web Development FAQs
Answers to the technical questions Australian founders and product managers ask before starting a custom web app project.
Related Web Development Services
Other web development specialisations and AU digital services to pair with or consider alongside custom development.
Ready to Build Your Australian Web Application?
Book a free 45-minute AEST technical discovery call. We will scope your project, recommend the right stack, and send a detailed AUD estimate within 48 hours. No commitment required.
Or call us on Book a Free Call — Australian business hours (AEST/AEDT) — Monday to Saturday.