.NET Development
for Perth, Melbourne, Sydney, Brisbane businesses.
Enterprise business applications, high-performance APIs, Azure cloud deployment, and .NET Framework legacy migration. C# and ASP.NET Core for businesses running on the Microsoft stack.
We build new .NET applications and we modernise, upgrade, and support existing .NET Framework systems. Perth-based, Australia-wide.
The Microsoft ecosystem backend for enterprise and high-performance applications
.NET is Microsoft's application development platform. Modern .NET (8+) is open-source, cross-platform, and consistently ranks among the highest-performing backend frameworks available. It runs on Linux, Windows, and macOS. It deploys to Azure, AWS, Docker, and bare-metal servers.
For Australian businesses running Microsoft infrastructure — Azure AD, SQL Server, Office 365, SharePoint — .NET is the natural backend choice. The integration is native, the SDKs are first-party, and the deployment to Azure is seamless. You can bridge other frameworks into the Microsoft ecosystem, but .NET does it without the duct tape.
A large portion of our .NET work involves legacy migration. Australian businesses running .NET Framework 4.x applications that need upgrading to modern .NET. Web Forms, WCF, old MVC applications — systems the business depends on but that are falling behind. We handle both new .NET development and legacy .NET rescue.
.NET development — by project type
Enterprise applications, APIs, Azure deployments, legacy modernisation, and customer portals. These are the project types where .NET delivers the most value.
Enterprise Business Applications
Line-of-business applications built in C# on ASP.NET Core. ERP modules, HR systems, compliance platforms, document management, workflow engines, and operational tools for businesses running on the Microsoft stack.
.NET is the natural backend choice when your infrastructure is Microsoft — Active Directory, Azure, SQL Server, Office 365, SharePoint. The integration is deeper and more straightforward than bridging a PHP or Node.js backend into a Microsoft environment.
Role-based access with Azure AD integration. Audit logging for compliance. Multi-tenant architecture for organisations managing multiple divisions or clients. Background services for report generation, data processing, and scheduled operations.
ASP.NET Core Web APIs
RESTful APIs built in ASP.NET Core. Clean endpoint design, proper authentication (JWT, Azure AD B2C), input validation, rate limiting, and OpenAPI documentation. APIs that mobile apps, React frontends, and third-party platforms consume.
ASP.NET Core APIs perform well under load. The framework benchmarks near the top of TechEmpower rounds — handling more requests per second than Express, Django, or Laravel. When the API needs to handle serious throughput, .NET delivers.
Microservice architectures where individual .NET services handle specific domains. gRPC for internal service communication. REST for external consumers. Proper dependency injection, middleware pipelines, and health checks.
.NET on Azure
.NET applications deployed on Azure — App Services, Azure Functions, Azure SQL, Blob Storage, Azure AD, and the full Azure PaaS ecosystem. Native integration between the .NET framework and Azure services.
Serverless with Azure Functions for event-driven workloads. Web Apps on App Service for traditional hosting. Container Apps for Docker-based deployments. The deployment model matches the application architecture.
Australian data centres (East Australia — Sydney, Southeast Australia — Melbourne) for data sovereignty and latency. ExpressRoute for hybrid connectivity to on-premises infrastructure.
.NET Framework → .NET 8+ Upgrades
This is a major part of our .NET work. Australian businesses running .NET Framework 4.x applications that need upgrading to .NET 8 (or later). The old framework is in maintenance mode — no new features, limited patching, narrowing hosting options.
We migrate ASP.NET MVC, Web Forms, WCF, and Windows Services to ASP.NET Core. Business logic preserved, but the application architecture updated to modern .NET — cross-platform, cloud-ready, performant.
Not every application needs a full migration immediately. Sometimes stabilisation and security patching keeps the system running while a staged migration plan is executed over quarters, not weeks.
Customer & Internal Portals
Branded portals for customers, suppliers, and internal teams. Self-service interfaces connected to your .NET backend — project tracking, document access, ticketing, invoicing, and account management.
Blazor for server-rendered interactive portals that stay within the C# ecosystem. React or Angular frontend consuming an ASP.NET Core API for more complex, decoupled architectures. The approach matches the team and project requirements.
Azure AD B2C for customer identity management — registration, login, password reset, multi-factor authentication. Enterprise-grade security without building authentication from scratch.
Client portal that cut email volume by 70%
We built a secure document exchange and task tracking portal for an accounting firm. Clients upload, review and approve — all in one place instead of email.
Read the full case study →Why .NET for enterprise and high-performance applications
One of the fastest backend frameworks available
ASP.NET Core consistently ranks near the top of independent web framework benchmarks. The Kestrel web server handles millions of requests per second. For applications where throughput matters — high-traffic APIs, data processing, real-time systems — .NET performs.
JIT and AOT compilation, efficient memory management, and a mature garbage collector. The .NET runtime is engineered for performance in ways that interpreted languages cannot match.
This matters for Australian businesses running high-volume transactional systems, financial platforms, logistics operations, and healthcare applications where response time directly affects operations.
Native integration with the entire Microsoft ecosystem
Azure AD for identity. SQL Server for data. Office 365 for documents and email. SharePoint for content. Power BI for reporting. Teams for communication. If your organisation runs Microsoft, .NET integrates natively with all of it.
This is the primary reason many Australian enterprises choose .NET. The alternative — connecting a PHP or Node.js backend to Azure AD, SharePoint, and SQL Server — works, but requires more bridging code and loses some native integration features.
Active Directory single sign-on, Microsoft Graph API, Azure Blob Storage for documents, Azure Service Bus for messaging — .NET SDKs for all of these are maintained by Microsoft and integrated into the framework.
Built for the complexity that enterprise applications demand
Strong typing with C#, dependency injection built into the framework, middleware pipeline architecture, comprehensive logging, and structured error handling. .NET applications are inherently structured in ways that support large teams and complex requirements.
Entity Framework Core for database management — migrations, complex queries, relationships, change tracking. Proper ORM that handles enterprise data complexity without falling apart at scale.
This structure has a tradeoff — .NET projects take slightly longer to set up than Laravel or Express equivalents. But for applications that will be maintained for years by changing teams, the upfront structure pays off.
Modern .NET runs on Linux, Windows, macOS, and containers
.NET 8 runs on Linux, Windows, and macOS. Deploy to Linux containers, Azure App Service, AWS Lambda, or bare-metal servers. The old ".NET equals Windows-only" limitation ended with .NET Core.
This matters for hosting costs. Linux hosting is cheaper than Windows Server. Docker containers on Linux are the standard for cloud deployment. Your .NET application can run on cost-effective infrastructure.
Cross-platform also means developer flexibility. Your .NET developers can work on macOS, Linux, or Windows. The tooling — Visual Studio, VS Code, Rider — runs everywhere.
Running a legacy .NET Framework application?
.NET Framework 4.x is in maintenance mode. No new features. Narrowing hosting options. We migrate to modern .NET — or stabilise and maintain while you plan the transition.
.NET Framework → .NET 8+ Migration
The most common request. Legacy .NET Framework 4.x applications migrated to .NET 8. ASP.NET MVC, Web Forms, WCF, and Windows Services brought onto the modern platform.
Security Patching & Compliance
Fix security vulnerabilities, update to patched .NET releases, and ensure the application meets compliance requirements for your industry — APRA, PCI DSS, healthcare regulations.
.NET Application Takeover
Previous C# developer left? We audit the codebase, document it, fix critical issues, and take over ongoing .NET development. Enterprise knowledge transfer and handover process.
Performance Optimisation
Slow .NET application? We profile Entity Framework queries, fix N+1 problems, add caching layers, optimise database indexes, and tune the hosting configuration.
On-Premises → Azure Migration
Move your .NET application from on-premises servers to Azure. App Services, Azure SQL, Azure AD, managed infrastructure with Australian data centres.
Ongoing Support & Maintenance
Monthly support plans covering .NET updates, security patches, bug fixes, feature development, and Azure infrastructure management.
.NET Framework Migration
Upgrade your .NET Framework application to .NET 8+
Web Forms, WCF, MVC 5, Windows Services — whatever legacy .NET you are running, we migrate it to the modern platform. Tell us the version and the situation.
Common .NET project scenarios
Enterprise build, legacy migration, or high-performance API — if one of these sounds like your project, .NET is a strong fit.
Enterprise Business Application
Line-of-business systems running on the Microsoft stack. ERP modules, compliance platforms, workflow engines, and operational tools integrated with Azure AD and SQL Server.
Legacy .NET Framework Modernisation
.NET Framework 4.x applications that need migrating to .NET 8+. Security updates, cross-platform support, cloud hosting, and continued vendor support.
High-Performance API
API backends that need to handle serious throughput — financial transactions, logistics routing, real-time data processing. .NET outperforms most frameworks at this level.
Microsoft Ecosystem Integration
Applications that need deep integration with Azure AD, Office 365, SharePoint, SQL Server, Power BI, and Teams. .NET provides native SDKs for all of it.
Azure Cloud Application
.NET application built for Azure — App Services, Functions, SQL Database, Blob Storage. Native deployment and monitoring through Azure DevOps and Application Insights.
.NET Application Rescue
Previous developer left, codebase is undocumented, business depends on it. We take over .NET applications, stabilise them, and plan the forward path.
Common .NET upgrade and migration paths
Legacy .NET to modern .NET, on-premises to cloud, monolith to microservices — these are the migration paths we execute most often.
Common .NET stack combinations
.NET is the backend and framework. These are the frontend, database, and infrastructure combinations we pair it with.
.NET + Azure
The natural pairing. Azure App Services, SQL Database, Blob Storage, Functions, and AD. Native deployment from Visual Studio and Azure DevOps.
.NET + SQL Server
The default .NET database. Entity Framework Core provides full ORM support. Azure SQL for cloud hosting. Strong tooling with SSMS and Azure Data Studio.
.NET API + React / Angular
Decoupled frontend consuming a .NET API. React for component-driven UIs. Angular for enterprise frontends with TypeScript-first architecture.
.NET + Blazor
Interactive UI in C# without JavaScript. Server-side Blazor for internal tools. WebAssembly Blazor for client-side applications. Same language front to back.
.NET + MAUI / Xamarin
Cross-platform mobile and desktop applications in C#. .NET MAUI for new projects. Xamarin support for existing mobile apps. One codebase for iOS, Android, and desktop.
.NET + Docker / Kubernetes
Containerised .NET applications deployed to AKS (Azure Kubernetes Service), ECS, or Docker Compose. Multi-service architectures with independent scaling.
Our .NET Framework application ran our entire compliance workflow. It was on .NET 4.6, the developer who built it had retired, and our hosting provider was ending Windows Server 2012 support. HELLO PEOPLE migrated the whole thing to .NET 8 on Azure over four months. Zero data loss, no downtime during the cutover.
Common questions about .NET development
Is .NET still relevant for new projects?
Yes. Modern .NET (8+) is open-source, cross-platform, and one of the fastest backend frameworks available. It is not the Windows-only technology it was ten years ago. For enterprise applications, Microsoft ecosystem integration, and high-performance APIs, .NET is a strong choice.
What is the difference between .NET Framework and .NET 8?
.NET Framework (4.x) is the legacy version — Windows-only, maintenance mode, no new features. .NET 8 (formerly .NET Core) is the modern version — cross-platform, actively developed, cloud-native, performant. New projects should always use .NET 8+. Existing .NET Framework applications should plan a migration.
Can you migrate our .NET Framework application?
Yes. We migrate .NET Framework 4.x applications to .NET 8+ regularly. ASP.NET MVC, Web Forms, WCF, and Windows Services. The approach depends on the application complexity — some migrate directly, others need a staged rewrite of specific components.
Do you do .NET on AWS or only Azure?
Both. .NET runs well on AWS — Lambda, ECS, RDS, S3. Azure is the natural choice for Microsoft-heavy environments, but many Australian businesses run .NET on AWS successfully. We choose the cloud platform based on your existing infrastructure and requirements.
How much does .NET development cost?
A standard .NET business application starts from $20,000 to $50,000. Enterprise systems with complex integrations, compliance requirements, and multi-role access are $50,000 to $150,000+. .NET Framework migration projects range from $10,000 to $80,000 depending on codebase size. Fixed-price quotes after scoping.
.NET or Laravel — which should we choose?
If your organisation runs Microsoft infrastructure (Azure AD, SQL Server, Office 365), .NET integrates natively and is typically the better choice. If you have no Microsoft dependency and the project is a standard web application, Laravel is usually faster and cheaper to build. We recommend based on your infrastructure, budget, and requirements — not framework preference.
Can you take over an existing .NET project?
Yes. We take over .NET projects — both .NET Framework and modern .NET. We audit the code, document it, fix critical issues, and continue development. For .NET Framework projects, we also assess migration readiness and plan the path to modern .NET.
Do you use Blazor?
Yes, for appropriate projects. Blazor Server is a good fit for internal tools and admin panels where the team wants to stay in C# without learning React. Blazor WebAssembly suits client-side applications. For customer-facing applications with complex UIs, we often recommend React or Angular with a .NET API.
Get Started
Need a .NET developer in Australia?
New enterprise application, legacy migration, Azure deployment, or ongoing support — tell us the situation and we will come back with a plan, timeline, and fixed-price quote.
Tell Us About Your .NET Project
New build, migration, or support — describe the project and we will respond with a practical plan.
Prefer a quick chat? Call 0425 531 127 – we're Perth-based and we answer the phone.