.NET Development for High-Performance Enterprise Backends
Build high-throughput backend APIs, cloud-native microservices, custom enterprise software, and scalable web solutions with modern .NET. Built with strict C# type safety, Kestrel performance, and seamless Azure/AWS deployment.
.NET 9 Kestrel // High-Throughput Node
Minimal APIs · EF Core Pool · Redis Cluster
What Can We Build With .NET?
Whether building new microservices or modernizing legacy infrastructure, .NET delivers transactional reliability and extreme throughput.
High-Throughput ASP.NET Core APIs
Low-latency REST and gRPC backend microservices designed for massive concurrent loads, decoupled frontend systems, and third-party partner integrations.
Engineered for High-Throughput & Cloud Reliability
ASP.NET Core runs on top of the ultra-fast Kestrel web server, delivering top-tier performance on Linux containers with tiny memory footprints and zero Windows license overhead.
// Modern C# 12 Minimal API Endpoint
app.MapGet("/api/orders/{id}", async (Guid id, OrderDbContext db) =>
await db.Orders.AsNoTracking().FirstOrDefaultAsync(o => o.Id == id) is Order o
? Results.Ok(o) : Results.NotFound());
Comprehensive .NET Development Capabilities
Enterprise engineering delivered by senior C# developers with deep experience in cloud, microservices, and high-concurrency systems.
ASP.NET Core REST & gRPC
High-concurrency backend services built with Minimal APIs, OpenAPI documentation, asynchronous I/O, and gRPC streaming for decoupled frontends.
C# 12 & ASP.NET Core 9Cloud-Native Microservices
Containerized microservices running on Azure Container Apps, AWS ECS, or Kubernetes, wired with message brokers like RabbitMQ or Kafka.
Docker & Kubernetes NativeHigh-Speed Data Architecture
Hybrid data layers utilizing Entity Framework Core for transactional domain models and Dapper for ultra-fast read queries against SQL Server or Postgres.
EF Core, Dapper & RedisLegacy .NET Modernization
Refactoring legacy .NET Framework 4.x monoliths, Web Forms, and WCF services into containerized modern .NET running on low-cost Linux infrastructure.
Zero-Downtime MigrationIdentity & Enterprise Security
Robust authentication using OAuth2, OpenID Connect, Azure Entra ID (Active Directory), and granular claims-based authorization policies.
OAuth2, OIDC & RBACERP & System Integration
Seamless middleware connecting custom software to SAP, Microsoft Dynamics 365, Salesforce, and legacy mainframe systems via reliable queuing.
Dynamics 365, SAP & MiddlewareWe Don't Just Write Code. We Build Scalable Products.
Explore proprietary platforms built by GrosioTech, engineered for scale, high concurrency, and production reliability.
GrosioVision Studio
Computer vision inspection platform processing live camera streams across industrial conveyor belts with real-time anomaly alerts and high-throughput event processing.
VirtuTry
Interactive virtual try-on engine for apparel and eyewear retail brands, integrating with Shopify and custom eCommerce storefronts with instant WebGL photorealistic rendering.
Frequently Asked Questions
Straightforward answers about .NET architecture, enterprise legacy modernization, and project engagements.
Ready to Build a High-Performance .NET Backend?
Discuss your system architecture, API performance goals, or legacy modernization with our senior .NET engineers.
No obligation. We reply within 24 business hours with an architectural evaluation.