Microsoft .NET Development for Business Software
Microsoft .NET and ASP.NET Core form the technical foundation of nearly all our projects. That's not a coincidence, but the result of more than 35 years of combined team experience – with an eye on stability, maintainability, and long-term support.
- ASP.NET Core & C#
- SQL Server & Azure
- 35+ years of team experience
In short
Microsoft .NET is the technical foundation of almost all Altora projects: ASP.NET Core for web applications and APIs, C# as the language and SQL Server as the database, in the Azure cloud if needed. We rely on .NET because it is stable, secure and supported by Microsoft long-term – so your software stays maintainable for years.
What we build with .NET
Web applications
ASP.NET Core for fast, secure web apps and portals.
APIs & interfaces
REST APIs and integrations for your systems.
SQL Server
Clean data models and fast queries.
Azure & scaling
Cloud operation when your user numbers grow.
Migration
Move legacy systems to modern .NET step by step.
Quality & tests
Test automation and maintainability as a design principle.
Why we build on Microsoft .NET
ASP.NET Core is actively developed and supported long-term by Microsoft, is cross-platform, and offers a mature toolchain for development, testing, and operations. For business-critical applications, this exact combination of stability and active development matters.
C# as a language is strongly typed and comes with an extensive ecosystem of libraries, which benefits both development speed and code quality. Combined with Microsoft SQL Server as the database, this creates a technical foundation suited to both smaller applications and complex, data-intensive systems.
Where we use .NET in our projects
We use .NET for classic business applications as well as modern web applications, customer portals, and APIs. Our own products – two booking platforms for airport parking – run entirely on this technology foundation too.
For backend systems that need to communicate with other services, we build REST APIs on .NET that integrate cleanly into existing system landscapes. When modernizing older systems, .NET is also frequently the technical target architecture we migrate to step by step.
Also, when it comes to choosing libraries and third-party components, we're cautious: every additional dependency increases later maintenance effort, so we prefer established, long-term maintained packages from the .NET ecosystem over experimental niche solutions.
Cloud and scaling with Azure
Combined with Microsoft Azure, .NET applications scale on demand without you having to run your own server hardware. For databases, we frequently use Azure SQL; for running containerized applications, we use Docker where needed.
This combination of .NET and Azure lets you start with a manageable initial investment and expand infrastructure in a targeted way as load grows.
Maintainability as a design principle
A key argument for .NET, for us, is maintainability over years. We focus on clean, understandable code and a traceable architecture, so your software stays extensible even after the original developers are no longer active on the project.
That's reflected in the fact that we use the same technology foundation for client projects as for our own platforms, which have run in production for years – maintainability isn't a theoretical promise for us, but daily practice.
Migrating legacy systems to .NET
Many businesses run systems based on older technologies that are still functionally needed. Instead of a risky big-bang replacement, we usually prefer a step-by-step migration: individual modules are moved to .NET one at a time while the legacy system keeps running in parallel.
This approach reduces the risk of outages and lets you verify that everything works as expected after each migration step before moving to the next. For smaller systems, a complete rebuild on current .NET is often the more economical option instead.
Security in .NET applications
ASP.NET Core comes with solid security mechanisms built in, including for authentication and protection against common attack patterns. We add encrypted connections, secure authentication methods, and regular framework and dependency updates on top.
For data storage in SQL Server, we apply the principle of least privilege: applications only get the database access they actually need for their function.
A long-term perspective, not a short-term fix
A technology decision often has effects for years. With Microsoft .NET, we build on a platform actively developed by one of the largest software companies in the world, which creates planning certainty for your investment.
That doesn't mean every requirement is forced onto .NET, though: where another technology objectively fits better, we say so openly instead of pushing a solution onto our preferred foundation at any cost.
Test automation and code quality
Solid .NET development, for us, includes automated testing – from unit tests of individual functions to integration tests that verify how multiple system parts work together. That reduces the risk of new features unintentionally breaking existing behavior.
Combined with a CI/CD pipeline – automated build and release processes – new versions of an application can be released reliably with little manual effort. That matters especially for applications under continuous development in production, like our own booking platforms.
How we work
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1
Free initial consultation
We clarify goals, starting point and existing systems – honestly and without obligation.
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2
Concept & quote
You receive a clear scope with an effort estimate and timeline.
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3
Implementation in stages
Regular, testable intermediate versions – you can adjust early.
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4
Go-live & support
Launch and, on request, ongoing maintenance and further development.
Frequently Asked Questions About .NET Development
Why is Microsoft .NET suitable for business software?
ASP.NET Core is supported long-term by Microsoft, is stable, and combines well with cloud infrastructure like Azure – a solid foundation for business-critical applications.
Can existing .NET software be modernized?
Yes, we analyze existing .NET applications and modernize them step by step or completely, depending on the starting point and requirements.
Does Altora work with technologies other than .NET?
Our focus is Microsoft .NET, since that's where we have the most experience and practice. When needed, we also connect .NET applications to other systems and technologies.
Is .NET suitable for smaller projects too?
Yes. The technology scales from lean web applications to complex business systems and is a solid, future-proof choice for smaller projects too.
How does a legacy system migration to .NET work?
Usually step by step: we migrate individual modules one at a time while the existing system keeps running in parallel, to minimize the risk of outages.
Does .NET support mobile applications?
ASP.NET Core works excellently as a backend for mobile applications via APIs. We agree on the right technology for the mobile interface itself individually with you.
How do you ensure a .NET application stays maintainable long-term?
Through clean architecture, automated tests, traceable documentation, and deliberately avoiding unnecessary dependencies – principles we also apply to our own platforms, which have run in production for years.
Let's Talk About Your .NET Project
No obligation, personal, and tailored to your business.
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