C# and .NET Development Services
Twenty years after its debut, C# remains one of the most productive languages for business software — and .NET has quietly become the cross-platform, open-source runtime that most people who stopped paying attention a decade ago don't realise exists. We've been working with it long enough to know where it shines and where something else fits better.
Where C# earns its keep
C# and .NET were built for the kind of software that businesses actually run on: back-end services that handle real throughput, line-of-business applications that people use eight hours a day, and APIs that need to be fast and boringly reliable. It's not the flashiest stack, but it's the one that keeps running when the flashy ones have been rewritten twice.
We use it for ASP.NET Core web APIs that serve mobile apps and SPAs, for background workers that process queues and scheduled jobs, for desktop tools where a browser doesn't cut it, and for system integrations — pulling data from a legacy ERP, transforming it, and pushing it into a modern dashboard. If your problem involves structured data, business rules, and a need for the thing to just work for years, .NET is usually a strong candidate.
What we bring
Deep experience with the full .NET ecosystem: ASP.NET Core for web APIs and MVC apps, Entity Framework Core for data access that stays maintainable, Blazor when you want C# on the front end too, and Azure for deployment, scaling, and monitoring. We write tests (unit, integration, and end-to-end), set up CI/CD pipelines, and configure the kind of logging and observability that means you're not guessing when something goes wrong at 3 a.m.
We also bring pragmatism. C# is excellent for a lot of things, but it's not the right answer for everything. If a piece of your system would be better served by a lightweight Python service or a dedicated message queue, we'll say so and integrate it cleanly rather than forcing everything through one stack.
Modernising older systems
We regularly take over codebases that started on .NET Framework 4.x and help teams move them forward. That can mean a full rewrite to .NET 8, a gradual migration where old and new code run side by side, or targeted refactoring of the parts that cause the most pain. We've done enough of these to know the common landmines — the NuGet packages that disappeared, the IIS settings nobody documented, the third-party DLL from 2012 that the whole system depends on.
The goal is never "use the newest thing." It's "make the system safer to change, easier to deploy, and cheaper to maintain" — and .NET's modern tooling is genuinely good at all three. Containerised builds, infrastructure-as-code deployments, automated database migrations — these aren't aspirational; they're the baseline for any new project we touch.
FAQ
When should I choose .NET over other stacks?
.NET excels when you need strong typing, high throughput, and a mature ecosystem that won't disappear next year. It's particularly strong for line-of-business applications, financial systems, healthcare software, and any domain where correctness matters more than developer trendiness. The tooling — Visual Studio, Rider, the Roslyn compiler — is best-in-class, and the performance benchmarks are among the top of any mainstream framework. If you have an existing Microsoft ecosystem (Azure, Active Directory, SQL Server), .NET integrates natively and reduces operational overhead compared to bolting those services onto a non-Microsoft stack.
Can you migrate a .NET Framework 4.x application to modern .NET?
Yes, and we've done it many times. The approach depends on the size and state of the codebase. For smaller applications, a direct port to .NET 8 is often the fastest path. For larger systems, we typically recommend an incremental migration: extract pieces into separate services that run on modern .NET while the legacy core keeps operating, then gradually retire the old code. We assess dependencies, third-party libraries, and IIS configuration as part of the discovery phase so there are no surprises mid-migration. The result is a system that's faster, can run on Linux containers, and costs less in hosting and maintenance.
Does .NET work on Linux?
Absolutely. Since .NET Core (now simply .NET 5+), the entire stack runs natively on Linux with excellent performance — often better than on Windows for web workloads. We deploy .NET applications on Linux containers as standard, using Docker and orchestration tools like Kubernetes or Azure Container Apps. The days of .NET being a Windows-only framework ended years ago; today, Microsoft's own cloud runs more .NET on Linux than on Windows. If you're running on Linux infrastructure, .NET is a first-class citizen.
How do you handle testing and quality assurance?
Testing is integral, not an afterthought. We write unit tests with xUnit or NUnit, integration tests that exercise real databases and APIs, and end-to-end tests where they add value. Every pull request goes through automated CI checks — build, test, lint, and static analysis — before any human reviews it. We configure code coverage thresholds and use tools like SonarQube or NDepend for teams that want deeper static analysis. For critical systems, we also set up health checks, structured logging (Serilog), and Application Insights or Prometheus monitoring so you can see what's happening in production — because tests catch bugs, but observability catches the ones tests miss.
Working with us
Whether you need a new API built from scratch, an existing system untangled, or a legacy .NET app brought into the modern world, we start the same way: a conversation about what you actually need, not what we want to sell.