.NET - Professional Backend Solutions for Your Business
.NET Core - efficient framework for backend apps, REST APIs, microservices. C#, ASP.NET Core, Entity Framework. See our projects.
.NET is Microsoft's mature platform (C#, ASP.NET Core) for building efficient, scalable backend applications, REST APIs and microservices.
Challenge
Your company needs an efficient, secure, and scalable backend system. Business applications require high performance, easy integration with databases and external systems.
Our Solution
.NET Core is Microsoft's mature framework with excellent performance and support. We create REST APIs with ASP.NET Core, use Entity Framework for ORM, implement JWT authentication, integrate with SQL Server and PostgreSQL. We apply Clean Architecture and CQRS for scalability.
Result
Stable backend system processing thousands of requests per second, with full API documentation (Swagger), unit tests, and CI/CD integration. Easy maintenance thanks to C# typing and IntelliSense support.
What we build with .NET
We choose the .NET platform for systems that must run reliably and securely under heavy load. We most often build:
- Backends and REST APIs for web and mobile applications
- Business systems: CRM, ERP, management panels, B2B portals
- Integrations with databases and external systems
- A microservice architecture for larger, growing platforms
- Applications processing large amounts of data and transactions
.NET is especially suitable where performance, security and predictability matter.
Why .NET for business systems
Behind .NET are years of Microsoft development and a mature ecosystem that thousands of companies rely on.
- High performance that handles thousands of requests per second
- Strong typing of the C# language, which eliminates a whole class of errors while writing code
- Security and regular updates backed by Microsoft
- Long LTS version support, which makes maintenance planning easier
- Easy integration with SQL Server, PostgreSQL databases and cloud services
It is a stable foundation for systems meant to run for years.
How we build a .NET backend
We rely on an architecture that organises the code and makes growing the system over time easier.
- Clean Architecture separating business logic from technology
- Patterns such as CQRS where they help with scaling and clarity
- Entity Framework for convenient and safe work with the database
- API documentation (Swagger) always up to date with the code
- Unit tests and CI/CD integration for safe deployments
As a result the system is not only fast but also easy to maintain and hand over to new people.
Integrations and security
Backend systems rarely work in isolation — we connect them securely to the rest of your infrastructure.
- Integrations with SQL Server and PostgreSQL databases and external systems
- Authorisation and authentication (JWT, OAuth2) plus roles and permissions
- Secure data storage and compliance with good practices
- Handling payments, accounting systems and third-party services via API
- Monitoring and logging that make problems quick to detect
We treat security as part of the architecture, not an add-on at the end of the project.
What you gain from a .NET system
A .NET backend is a foundation that will not let you down when the business starts to grow.
- Stability and performance even with many users and transactions
- Fewer errors thanks to strong typing and tests
- Easier maintenance and development thanks to an organised architecture
- Security and compliance important in systems processing data
- A technology with long support, for which specialists are easy to find
It is the choice for companies thinking about the system over years, not months.
How much a .NET system costs
The cost depends on the complexity of the business logic, the number of integrations and performance requirements. A smaller API is a project measured in weeks; an extensive business system is quoted individually and split into stages.
We bill on a Time & Material basis at 120 PLN/h net, with full transparency of the hours. We start by setting priorities so we first deliver what brings the most value.
After go-live we offer care from 1,000 PLN net per month — maintenance, security updates and system development.
Frequently Asked Questions
.NET has better performance (ASP.NET Core vs Express benchmark), strong C# typing, excellent enterprise support, Entity Framework for ORM, and easy Azure integration. Node.js better for real-time and I/O-heavy tasks.
Yes, .NET Core is cross-platform and runs on Windows, Linux, and macOS. You can host on Linux servers (Ubuntu, CentOS), use Docker, and deploy to AWS/Azure/Google Cloud.
See also
Related services and solutions