ASP.NET MVC in modern C#. Multi-tier architecture, Entity Framework Core, SQL Server, Azure deployments. For systems where Microsoft is mandated by IT policy — or where the right answer just happens to be the Microsoft stack.
What kind of .NET work this is
Our .NET engagements split roughly three ways: greenfield enterprise applications (admin platforms, internal tools, B2B portals), modernization of legacy .NET Framework 4.x systems to .NET 8/9, and integration-heavy projects that have to live inside an existing Azure / Active Directory ecosystem. The common thread: Microsoft is either required by IT policy or genuinely the right choice for the problem.
C# in 2026 is genuinely a good language. Strict nullable reference types, pattern matching that actually reads well, async/await throughout, source generators for boilerplate elimination. EF Core has matured to where you almost never need to drop to raw SQL. Azure’s pricing is competitive again. The platform has stopped being a punchline.
What we build, concretely
Architecture
Clean architecture with proper separation: API/Controllers thin, Application layer holds use-cases, Domain layer holds entities and invariants, Infrastructure layer handles EF Core and external services. Dependency injection via the built-in container or Autofac. Mediator pattern via MediatR when CQRS earns the complexity. SOLID-compliant code that survives the eight-year maintenance window most enterprise systems require.
Data layer
Entity Framework Core with code-first migrations. SQL Server with proper indexing strategy designed in week one, not added when the query optimizer starts choking at 2M rows. Read replicas where reporting workloads warrant it. Distributed caching via Redis (Azure Cache for Redis) when query patterns demand it.
Identity & authorization
ASP.NET Core Identity for in-app users, Azure AD / Entra ID for enterprise SSO. OAuth 2.0, SAML 2.0, OpenID Connect when the integration calls for them. Role-based access control + claims-based authorization. Multi-factor where the security policy requires.
API design
RESTful APIs via ASP.NET Core controllers, OpenAPI auto-generated via Swashbuckle or NSwag. Versioning via URL or header, whichever your downstream consumers prefer. Rate limiting, request validation via FluentValidation, contract testing for downstream consumer apps.
Deployment
Azure App Service, Azure Kubernetes Service, Azure Container Apps, or self-hosted IIS — depending on what your operations team supports. CI/CD via Azure DevOps, GitHub Actions, or Octopus Deploy. Blue-green deploys for zero downtime. Application Insights for observability.
Where this stack shines
- Enterprise systems where Microsoft is mandated by IT policy
- Internal admin platforms that need deep Active Directory / Entra ID integration
- Compliance-heavy systems (SOC 2, HIPAA, ISO 27001) where on-prem hosting matters
- Legacy modernization — ASP.NET WebForms or MVC 5 to modern .NET 8/9
- Headless API backends serving React or Angular front-ends across the organization
- High-throughput B2B systems where C#’s performance characteristics genuinely matter
How an engagement runs
Enterprise .NET projects typically run 12–28 weeks. Week one is architecture sketching plus a working CI pipeline and a deployed staging environment by Friday. Weeks two through twenty-something are the build — Friday demo cadence, monthly architecture-review checkpoints, security review at the 60% mark.
For modernization projects, we run parallel-system patterns — the old system keeps running while we ship new functionality in the new system. Strangler-pattern migration over 3–6 months. Nobody loses their job to a big-bang cutover that fails.
Pricing
- Internal admin tool / single-app build: $45K–$120K, 10–18 weeks
- Enterprise B2B portal with SSO + integrations: $90K–$280K, 16–28 weeks
- Legacy modernization (Framework 4.x → .NET 8/9): $60K–$220K depending on codebase size, 12–24 weeks
- API-only backend for React/Angular front-end: $40K–$130K, 8–16 weeks
Start a .NET project
Tell us about it — what the system does, who uses it, what it integrates with, where it deploys. connect@prizorai.com or the form. Most of our .NET work is under NDA, so case-study references happen on a private call.