ASP.NET Core back-ends that are fast, secure & built to scale
We engineer high-performance, cross-platform back-ends and REST APIs with ASP.NET Core and C#. From the middleware pipeline and dependency injection to Entity Framework Core, JWT authentication and Azure deployment, you get a server foundation that’s reliable under load and clean enough to grow on for years.
Cross-platform .NET back-ends, engineered properly
The server behind your product decides how fast it responds, how safely it holds data, and how easily you can add the next feature. We build that server with ASP.NET Core and C# - a modern, open-source framework that runs natively on Windows, Linux and macOS, and inside containers. It powers everything from lean REST APIs and microservices to large line-of-business systems.
Under the hood we lean on what the platform does well: a composable middleware pipeline, first-class dependency injection, the high-performance Kestrel web server, and Entity Framework Core for type-safe data access. APIs are built with controllers or Minimal APIs, documented with Swagger/OpenAPI, covered by xUnit tests, and shipped through CI/CD to Azure. The result is a back-end that is quick under load, secure by default, and structured so it stays maintainable.
Why a solid .NET back-end matters
Front-end polish only takes a product so far. When traffic climbs, or a payment must never be lost, or an audit asks who accessed what, it’s the back-end that carries the weight. A poorly built server leaks performance, invites security holes, and turns every new requirement into a fight against tangled code.
ASP.NET Core is built for exactly this. It consistently ranks among the fastest mainstream web frameworks in the independent TechEmpower benchmarks, so you get real headroom without exotic infrastructure. Just as important, Microsoft ships predictable Long-Term Support (LTS) releases with multi-year maintenance, so the foundation you build on today is still supported and secure well into the future - no surprise rewrites forced by an abandoned framework.
What it does for your business
Handles real load
High-throughput ASP.NET Core services serve more users on less hardware, keeping infrastructure costs down.
Security you can trust
Built-in authentication, authorization and data protection reduce the risk of breaches and downtime.
Room to scale
Clean, layered architecture lets you add features and traffic without an expensive rebuild.
Long-term stability
LTS releases and a mature ecosystem mean your investment stays supported for years.
What’s included
- REST APIs, your wayController-based or Minimal APIs with clean routing and correct status codes.
- Middleware pipelineCross-cutting concerns like auth, CORS, logging and error handling done once, in order.
- Built-in dependency injectionLoosely coupled, testable services registered with the right lifetimes.
- Entity Framework CoreType-safe data access, migrations and async queries against SQL Server.
- Authentication & authorizationASP.NET Core Identity, JWT bearer tokens and OAuth2/OpenID Connect.
- Caching & performanceIMemoryCache, IDistributedCache and Redis to cut latency and database load.
- Background & hosted servicesReliable queues, scheduled jobs and long-running work off the request path.
- Swagger / OpenAPI docsInteractive, always-current API documentation for your team and integrators.
Our stack for this service
Proven, well-supported technologies chosen for performance, security and long-term maintainability.
Principles we build by
Clean, layered architecture
Clear separation between API, application, domain and data layers, wired through dependency injection.
Async & performance-first
Non-blocking async I/O, sensible caching and lean queries so the server stays responsive under load.
Security by default
OWASP-aware development, validated inputs, HTTPS/HSTS, least-privilege data access and safe secrets.
Tested & observable
xUnit coverage, structured ILogger logging and health checks so problems surface early, not in production.
Who we build for
Custom pricing, built around your project
No fixed packages. Every quote is tailored to your scope, integrations and timeline - with a clear, itemised estimate and no hidden costs.
.NET development questions
The things clients ask most often about this service.
Pairs well with
.NET back-ends often go hand in hand with these.
Ready to build your
next .NET back-end?
Tell us what you need and we’ll come back with a clear approach, timeline and estimate - usually within one business day.