.NET
.NET Development in Australia
Business systems, APIs and integrations on .NET and Azure, plus careful modernisation of older .NET applications.
.NET is Microsoft’s platform for building business software: web apps, APIs, background services and integrations that need to be secure, fast and supportable for years. It is the natural choice for organisations that already run on Microsoft 365, Entra ID and Azure. Smarterapps Ai is an Australian AI and app development company that has been building software for Australian businesses since 2010. We build new .NET systems, extend and modernise existing ones, and connect them to the rest of your business.
What we build with .NET
Business systems and line-of-business apps
Quoting, job management, compliance, asset and case management systems built around how your organisation actually works, with role-based access and audit trails. → Business app development
APIs and backend services
Secure, well-documented APIs in ASP.NET Core for your web and mobile apps, partners and internal teams, with versioning, rate limits and monitoring.
Integrations
Connections between your CRM, ERP, finance, HR and document systems, so data is entered once and flows where it is needed. → Workflow automation · Xero & MYOB
Background jobs and data processing
Scheduled imports, report generation, file processing and queues that run reliably without anyone watching them.
Portals and web apps
Staff and customer portals with a .NET backend and a modern front end, whether that’s Blazor, React or Next.js. → React web apps
AI features in .NET systems
Document extraction, natural-language search, summaries and assistants added to existing .NET applications using Azure OpenAI or other models, with guardrails and cost controls. → LLM & GPT integration · Document AI
.NET and Azure
.NET runs anywhere, but it fits Azure especially well. We design and deploy .NET systems on Azure App Service, Azure Functions, Azure SQL and storage, with sign-in through Microsoft Entra ID so staff use the accounts they already have. Azure offers Australian regions for organisations whose data needs to stay onshore. → Sovereign AI & privacy
We also deploy .NET to AWS and other clouds where that suits your existing infrastructure better.
Modernising older .NET applications
Many Australian organisations rely on systems built on older .NET Framework versions, Web Forms or WCF. They still work, but they are harder to host, secure and hire for. We help you modernise without a risky big-bang rewrite:
- Assessment: a written report on the code, dependencies, security and hosting, with the options and their risks
- Step-by-step migration: move modules to current .NET one at a time while the system stays in use
- API-first: put a clean API in front of the old system so new web and mobile apps can use it today
- Cloud move: shift hosting to Azure or AWS when the application is ready
Why .NET for business software
- Long-term support: Microsoft publishes a predictable release and support schedule
- Performance: modern .NET is fast and efficient, which keeps hosting lean
- Security: mature identity, encryption and data-protection features
- Microsoft integration: first-class connections to Microsoft 365, SharePoint, Teams and Entra ID
- Strong typing with C#: large systems stay safer to change as they grow
.NET, Python, Node.js or Laravel?
We build backends in all four, so our advice isn’t tied to one. .NET is usually the best fit when you are a Microsoft organisation, need long-lived business systems, or already have .NET code and people. Python suits AI and data-heavy work, Node.js suits real-time services, and Laravel suits fast, practical web apps and portals. → Python & Node.js · Laravel & PHP · All technologies
How we run a .NET project
- Discovery: users, processes, data, existing systems, security and hosting requirements
- Design: architecture, data model, integration points and a prototype of key screens
- Build in short sprints: working software to review at every demo, with automated tests
- Deploy: repeatable pipelines, monitoring and documentation for your team
- Support: security patches, .NET version upgrades and new features
Our team’s track record
All projects were delivered by our team: Smarterapps Ai, part of the Combine TRS group. We choose the stack for each project on its merits.
Since 2010 our team has delivered business platforms, integrations and apps for Australian organisations, including IoT and machine-learning inventory monitoring for Treasury Wine Estates, a server-monitoring app connected to NEXTDC’s own systems, and an in-house auditing iPad app for Octfolio. → Case studies
Frequently asked questions
What is .NET used for?
.NET is Microsoft’s open-source platform for building web apps, APIs, cloud services, background jobs and desktop software, usually written in C#.
Can you work on our existing .NET system?
Yes. We start with a code and hosting review, then fix urgent issues, add features or plan a modernisation in safe steps.
Do you only host on Azure?
No. Azure is a natural fit for .NET, but we also deploy to AWS and other clouds where that suits your infrastructure.
Can you connect .NET to Microsoft 365?
Yes. We integrate with Entra ID sign-in, SharePoint, Teams and Outlook through Microsoft’s APIs.
Can you add AI to a .NET application?
Yes. We add AI features using Azure OpenAI or other models, grounded in your data, with human review where decisions matter.
How much does .NET development cost?
It depends on scope, integrations and how much existing code is involved. We quote after a short discovery. → What drives cost
Do I own the code?
Yes. You own the source code and IP.
Running on Microsoft, or stuck on an older .NET system? Tell us where you are and we’ll recommend the next step.