Modern web applications
Accessible, maintainable apps with ASP.NET Core, Blazor, and modern SPA front-ends — clear domain models, server-side rendering where it counts, and production-ready delivery from day one.
.NET Full Stack Development
Enterprise applications on the Microsoft stack.
We design and build secure .NET web applications, ASP.NET Core APIs, system integrations, and incremental modernization paths for business-critical systems — engineered in C# and delivered on Azure.
.NET consulting
Custom .NET development for business-critical systems.
Qubrix is a boutique .NET development consultancy for enterprise teams. We build line-of-business web applications, APIs, and integration platforms in C# on ASP.NET Core and .NET 8 — the systems that run operations, move data between platforms, and cannot afford to fall over.
Every engagement is led by senior engineers who own architecture, code quality, and delivery discipline end to end. We favor clear domain models, automated testing, and continuous delivery on Azure, so what we ship stays maintainable long after go-live — by us or by your own team.
Where .NET fits
.NET is Microsoft's open-source platform for high-performance, cross-platform applications. It is the right choice when you need a secure, well-supported foundation that integrates cleanly with Azure, Dynamics 365, and the wider Microsoft ecosystem — with a talent pool deep enough to maintain it for years.
What we build
Full-stack .NET engineering, end to end.
From customer-facing portals to the integration plumbing behind them, we cover the whole .NET surface area — designed for security, observability, and change.
APIs & microservices
Secure REST and minimal APIs, gRPC services, and OpenAPI contracts — versioned, documented, and decomposed into right-sized services rather than a distributed monolith.
System integration
Anti-corruption layers and connectors that link .NET systems to Dynamics 365, ERPs, and third-party platforms, with message queuing for reliability and no brittle point-to-point scripts.
Background & event processing
Event-driven workflows, scheduled jobs, and long-running processes with Azure Functions, hosted services, and durable orchestration — resilient to failure and easy to observe.
Data & persistence
Pragmatic data access with Entity Framework Core and Dapper over Azure SQL and SQL Server — clean migrations, sensible caching, and query performance that holds up under load.
Cloud-native on Azure
Containerized services on Azure App Service, Container Apps, and AKS — with Key Vault, managed identities, and infrastructure as code so environments are reproducible and secure.
Legacy modernization
Modernize legacy .NET without a risky rewrite.
Ageing .NET Framework applications become slow to change, hard to hire for, and a growing security and compliance risk. A big-bang rewrite is rarely the answer — the safer path is to modernize incrementally while the business keeps running.
We use the strangler-fig pattern: new ASP.NET Core services stand up behind a routing facade, modules migrate one at a time under automated test coverage, and each legacy path is retired only once its replacement is proven. Release cadence typically moves from quarterly to weekly along the way.
- Modernization assessment and target-state architecture
- .NET Framework 4.x to .NET 8 / .NET 9 migration
- Refactoring toward maintainable, testable design
- Automated testing and CI/CD introduced before change accelerates
- Re-platforming workloads onto Azure with full observability
Why incremental wins
Incremental modernization keeps risk small and visible. Each slice ships behind tests, the running system is never dark, and value lands continuously instead of at the end of a multi-year program. If a slice reveals a problem, you have risked one module — not the whole business.
Tech stack
The .NET stack we build on.
Proven, well-supported tools — chosen for longevity and hiring, not novelty.
How we deliver
Engineering discipline, not just code.
The practices that keep .NET systems shippable and safe to change.
Automated testing
Unit and integration tests with xUnit give the confidence to change fast without breaking production.
CI/CD pipelines
Repeatable builds and deployments on Azure DevOps or GitHub Actions — every change tested and traceable.
Security by design
Entra ID authentication, Key Vault secrets, least-privilege access, OWASP practices, and dependency scanning in the pipeline.
Observability
Structured logging, metrics, and tracing with OpenTelemetry and Application Insights, so issues surface early.
Works well with
Part of a wider Microsoft platform.
Our .NET work rarely stands alone — it is how we connect and extend the rest of your Microsoft estate.
Azure
Cloud foundations, hosting, and DevOps for your .NET workloads.
Explore AzureDynamics 365
Custom .NET integrations and extensions across Dataverse and Dynamics 365.
Explore Dynamics 365Agentic AI & Copilot
Pro-code AI agents and Copilot extensions built on .NET and Azure AI.
Explore Agentic AIFAQ
Frequently asked questions
What is .NET used for in enterprise applications?
.NET is Microsoft's open-source development platform for building web applications, APIs, services, and integrations. Enterprises use it for resilient line-of-business systems, backend services, and modernization of legacy applications, typically built in C# with ASP.NET Core and deployed on Azure.
Which .NET versions does Qubrix work with?
We build new systems on the current .NET Long Term Support releases (.NET 8 and .NET 9) using ASP.NET Core and C#, and we regularly modernize older estates running .NET Framework 4.x and earlier .NET Core versions, upgrading them onto a supported, maintainable platform.
What does .NET modernization involve?
Modernization means incrementally improving an existing .NET estate — upgrading framework versions, refactoring toward maintainable architecture, adding automated testing and CI/CD, and moving workloads to Azure — prioritizing operational risk and release confidence over a risky big-bang rewrite.
How do you migrate a legacy .NET Framework application to .NET 8?
We favor the strangler-fig pattern: we stand up new ASP.NET Core services behind a routing facade, migrate modules one at a time with automated tests, and retire the legacy code path once each slice is proven — so the business keeps running throughout and release cadence improves as you go.
Do you build APIs and integrations with .NET?
Yes. We design secure REST and minimal APIs, gRPC services, event-driven workflows, and integration layers with .NET to connect Microsoft business applications, ERPs, and third-party systems, backed by message queuing, an Azure-hosted delivery pipeline, and monitoring.
Can Qubrix work alongside our existing development team?
Yes. We often work as an embedded, senior team — pairing with your developers, establishing architecture, testing, and CI/CD practices, and leaving the platform and the know-how with your people at handover.
How do you keep .NET applications secure?
We authenticate with Microsoft Entra ID, store secrets in Azure Key Vault, enforce least-privilege access, follow OWASP guidance, add dependency and container scanning to the pipeline, and instrument applications with logging and telemetry so issues are visible in production.
Ready when you are
Have a .NET build or modernization on the horizon?
Whether it is a new application, an integration layer, or a legacy estate that needs a safe path forward, we can help you scope it and move.