Leading .NET Development Company

Updated on Oct 15, 2025

STS Software is a leading provider of comprehensive .NET development services, delivering robust, scalable, and high-performance applications using Microsoft’s powerful .NET ecosystem. Our expert team leverages C# programming, ASP.NET Core, and Azure Cloud Services to create enterprise solutions that drive business success and digital transformation.

Why Choose STS Software for .NET Development?

As specialists in .NET development, we understand that building modern enterprise applications requires deep expertise in the Common Language Runtime (CLR), mastery of C# programming, and proficiency with frameworks like ASP.NET Core. Our developers excel at architecting solutions that leverage the full power of the .NET platform.

Contact us: Software Development Technologies

Our .NET Development Expertise:

12+ Years of production .NET development experience
ASP.NET Core expertise for cross-platform web applications
Azure Cloud Services integration and deployment
Microservices architecture design and implementation
Full-Stack Development with Blazor and modern frameworks

Comprehensive .NET Development Services

ASP.NET Core Web Development

ASP.NET Core is at the heart of our modern .NET development services. This cross-platform, high-performance framework enables us to build:

Web Application Development:

MVC (Model-View-Controller) applications
Razor Pages for page-focused scenarios
Single-page applications (SPAs) with React, Angular, Vue
Progressive web apps (PWAs)
RESTful Web API services
Real-time applications with SignalR

ASP.NET Core Advantages:

Cross-platform deployment (Windows, Linux, macOS)
Unified framework for web API and web UI
Built-in dependency injection
Middleware pipeline for request processing
High-performance request handling
Modern development experience with Visual Studio
Integration with Azure Cloud Services

C# Programming Excellence

Our .NET development team masters C# programming for building robust applications:

Modern C# Features:

Async/await for asynchronous programming
LINQ for data querying
Pattern matching and record types
Nullable reference types for null safety
Top-level statements and minimal APIs
Generic programming for reusable code
Lambda expressions and delegates
Extension methods

Object-Oriented Design:

Classes, interfaces, and inheritance
Encapsulation and abstraction
Polymorphism and virtual methods
SOLID principles implementation
Design patterns (Factory, Repository, Singleton)
Dependency injection principles

Web API Development

Building Web API services is a core competency of our .NET development practice:

RESTful API Development:

HTTP verb routing (GET, POST, PUT, DELETE)
JSON serialization with System.Text.Json
Model binding and validation
Custom middleware components
API versioning strategies
CORS configuration
Authentication and authorization (JWT, OAuth2)
Swagger/OpenAPI documentation

API Best Practices:

Consistent response formats
Error handling and logging
Rate limiting and throttling
Caching strategies
Health check endpoints
Asynchronous request processing
Content negotiation

Database Integration and Entity Framework

SQL Server Integration

SQL Server is our primary database platform for .NET development:

Database Capabilities:

Complex query optimization
Stored procedures and functions
Transaction management with ACID compliance
Full-text search capabilities
Temporal tables for historical data
Always Encrypted for data security
In-Memory OLTP for performance
Replication and high availability

Performance Optimization:

Index design and tuning
Query execution plan analysis
Database normalization
Connection pooling
Asynchronous database operations

Entity Framework Core

Entity Framework (EF Core) streamlines database access in our .NET development projects:

EF Core Features:

Code-First development approach
Database migrations for schema management
LINQ to Entities for type-safe queries
Change tracking and unit of work
Lazy loading and eager loading
Database-first and model-first approaches
Multi-database support (SQL Server, PostgreSQL, MySQL)

Advanced EF Core:

Global query filters
Owned entity types
Table splitting and splitting queries
Value conversions
Shadow properties
Compiled queries for performance
Raw SQL queries when needed
Bulk operations optimization

Cloud-Native Development with Azure

Azure Cloud Services Integration

Our .NET development services leverage Azure Cloud Services for scalable deployment:

Azure Platform Services:

Azure App Service for web applications
Azure Functions for serverless computing
Azure SQL Database for managed SQL Server
Azure Cosmos DB for globally distributed databases
Azure Storage (Blob, Queue, Table)
Azure Service Bus for messaging
Azure Key Vault for secrets management
Azure CDN for content delivery

Azure DevOps:

CI/CD pipelines for automated deployment
Azure Repos for source control
Azure Boards for project management
Azure Test Plans for quality assurance
Infrastructure as Code with ARM templates
Monitoring with Application Insights

Cloud-Native Features:

Auto-scaling based on demand
Load balancing across regions
Disaster recovery and backup
Security and compliance (SOC, ISO, HIPAA)
Cost optimization strategies

Microservices Architecture

Modern .NET development increasingly adopts microservices architecture:

Microservices Design

Microservices Benefits:

Independent deployment and scaling
Technology diversity per service
Fault isolation and resilience
Smaller, focused codebases
Team autonomy and parallel development

Implementation with .NET:

ASP.NET Core for lightweight services
Docker containerization
Kubernetes orchestration on Azure
Web API for service communication
gRPC for high-performance RPC
Message queuing with RabbitMQ or Azure Service Bus
API Gateway pattern
Service discovery and registration

Microservices Patterns:

Database per service
Saga pattern for distributed transactions
Circuit breaker for resilience
CQRS (Command Query Responsibility Segregation)
Event sourcing
Backend for Frontend (BFF)

Development Tools and Environment

Visual Studio IDE

Visual Studio is our primary development environment for .NET development:

Visual Studio Features:

IntelliSense for code completion
Advanced debugging tools
Breakpoints, watch windows, immediate window
Performance profiling
Code analysis and refactoring
Built-in Git integration
NuGet Package Manager
Azure integration for cloud deployment
Live Share for collaboration
CodeLens for code insights

Visual Studio Editions:

Visual Studio Enterprise for large teams
Visual Studio Professional for individual developers
Visual Studio Code for lightweight development
Visual Studio for Mac

NuGet Package Manager

NuGet Packages streamline dependency management:

NuGet Capabilities:

Package installation and updates
Version management
Private package feeds
Package creation and publishing
Dependency resolution
Package restore on build
Security vulnerability scanning

Popular NuGet Packages:

Auto Mapper for object mapping
Serilog for structured logging
Fluent Validation for validation rules
MediatR for CQRS pattern
Polly for resilience policies
Dapper for micro-ORM
Newtonsoft.Json for JSON processing

Full-Stack Development

Blazor for Modern Web UI

Blazor enables full-stack development with C# programming instead of JavaScript:

Blazor Server:

Server-side rendering with SignalR
Minimal client-side footprint
Full .NET debugging experience
Direct access to server resources
Ideal for internal enterprise applications

Blazor Web Assembly:

Client-side execution in browser
Offline capabilities
PWA support
Direct API calls from client
Shared code between client and server

Blazor Features:

Component-based architecture
Two-way data binding
JavaScript interop when needed
Form validation with data annotations
Routing and navigation
Dependency injection
CSS isolation

Full-Stack Architecture

Our full-stack development approach covers:

Frontend Technologies:

Blazor for C#-based UI
Razor Pages for server-rendered pages
Angular, React, or Vue.js with ASP.NET Core backend
Bootstrap and Tailwind CSS for styling
SignalR for real-time updates

Backend Services:

ASP.NET CoreWeb API
Entity Framework for data access
Business logic layer with C#
Authentication and authorization
Background services and hosted services

Desktop Application Development

WPF Applications

WPF (Windows Presentation Foundation) powers our Windows desktop development:

WPF Capabilities:

Rich user interface with XAML
Data binding and MVVM pattern
Custom controls and styling
Animation and graphics
3D rendering capabilities
Document and media support
Touch and pen input
Accessibility features

Modern WPF Development:

.NET 6/7/8 support
Community toolkit
Material Design and Modern UI themes
Performance optimizations
Integration with Azure Cloud Services

Desktop Technologies:

WinForms for legacy applications
WinUI 3 for modern Windows apps
.NET MAUI for cross-platform desktop and mobile
Universal Windows Platform (UWP)

Runtime and Memory Management

Common Language Runtime (CLR)

Understanding the Common Language Runtime (CLR) is crucial for .NET development:

CLR Responsibilities:

Just-In-Time (JIT) compilation
Type safety enforcement
Exception handling
Security and code access
Interoperability with COM and native code
Thread management
Assembly loading and versioning

Performance Optimization:

Understanding IL (Intermediate Language)
AOT (Ahead-of-Time) compilation
Ready To Run (R2R) images
Tiered compilation
Profile-guided optimization

Garbage Collection

The Garbage Collector (GC) provides automatic memory management:

GC Fundamentals:

Generational collection (Gen 0, 1, 2)
Automatic memory reclamation
Finalization and IDisposable pattern
Large object heap (LOH)
Server GC vs Workstation GC
Background and concurrent collection

Memory Optimization:

Reducing allocations with Span<T> and Memory<T>
Object pooling strategies
ValueTask for async methods
StackAlloc for stack allocations
Avoiding large object heap fragmentation
GC tuning for specific workloads

Software Architecture Excellence

Architecture Patterns

Our .NET development follows proven software architecture principles:

Architectural Patterns:

Layered architecture (Presentation, Business, Data)
Clean Architecture with SOLID principles
Domain-Driven Design (DDD)
Hexagonal architecture (Ports and Adapters)
Event-Driven Architecture
CQRS with MediatR
Repository pattern with Entity Framework
Unit of Work pattern

Design Patterns:

Dependency Injection (built into ASP.NET Core)
Factory and Abstract Factory
Builder and Fluent API
Singleton and Scoped lifetimes
Decorator pattern
Strategy pattern
Observer pattern with events

Enterprise Integration

Software Architecture for enterprise systems:

Service-oriented architecture (SOA)
Enterprise Service Bus (ESB)
API Gateway and Backend for Frontend
Identity and access management
Multi-tenancy patterns
Distributed caching with Redis
Message queuing and pub/sub
Workflow and orchestration

Security and Authentication

ASP.NET Core security features:

Authentication:

ASP.NET Core Identity for user management
JWT bearer token authentication
OAuth2 and OpenID Connect
Azure Active Directory integration
Multi-factor authentication (MFA)
External providers (Google, Facebook, Microsoft)

Authorization:

Role-based authorization
Claims-based authorization
Policy-based authorization
Resource-based authorization
API key authentication

Security Best Practices:

HTTPS enforcement
CSRF protection (built-in)
XSS prevention
SQL injection prevention with Entity Framework
Secrets management with Azure Key Vault
Data encryption at rest and in transit

Testing and Quality Assurance

Comprehensive testing in .NET development:

Unit Testing:

xUnit for modern test framework
NUnit and MSTest alternatives
Moq for mocking dependencies
FluentAssertions for readable assertions
Code coverage with Coverlet
Test-driven development (TDD)

Integration Testing:

WebApplicationFactory for testing ASP.NET Core
TestServer for in-memory testing
SQL Server database testing
Entity Framework integration tests
Web API endpoint testing

Performance Testing:

BenchmarkDotNet for micro-benchmarks
Load testing with Azure Load Testing
Profiling with Visual Studio profiler
Memory leak detection
Garbage Collector analysis

Industry Applications

STS Software delivers .NET development solutions across industries:

Financial Services: Trading platforms with SQL Server for transaction processing, real-time analytics using microservices on Azure Cloud Services, secure Web API for mobile banking.

Healthcare: HIPAA-compliant applications with ASP.NET Core, patient management systems using Entity Framework and SQL Server, telemedicine platforms with Blazor and SignalR.

E-commerce: Scalable platforms with microservices architecture, Blazor for interactive shopping experiences, Azure Cloud Services for global reach, Entity Framework for inventory management.

Enterprise Software: Business process automation with WPF desktop applications, full-stack development with ASP.NET Core and Blazor, cloud migration to Azure, legacy modernization.

Manufacturing: IoT integration with Azure IoT Hub, real-time monitoring with SignalR, SQL Server for production data, WPF applications for factory floor management.

Why .NET for Enterprise Development?

Unified Platform: Single ecosystem for web (ASP.NET Core), desktop (WPF), mobile (.NET MAUI), cloud (Azure), and microservices.

Performance: ASP.NET Core ranks among the fastest web frameworks, with Common Language Runtime optimizations and efficient Garbage Collector.

Productivity: C# programming with modern language features, Visual Studio IDE, NuGet Packages, and comprehensive standard library.

Cross-Platform: Modern .NET runs on Windows, Linux, macOS, enabling deployment flexibility across cloud and on-premises.

Enterprise Support: Microsoft backing with long-term support (LTS), enterprise-grade security, compliance certifications, and Azure integration.

Mature Ecosystem: Rich software architecture patterns, extensive NuGet Packages, strong community, comprehensive documentation.

Technology Stack Summary

Core Platform:

.NET 6/7/8 (LTS versions)
C# programming 11/12
Common Language Runtime (CLR)
Garbage Collector for memory management

Web Development:

ASP.NET Core MVC and Razor Pages
Web API for REST services
Blazor for interactive UI
SignalR for real-time features

Desktop:

WPF for Windows applications
WinForms for legacy systems
.NET MAUI for cross-platform

Database:

SQL Server (on-premises and Azure)
Entity Framework Core ORM
Dapper micro-ORM
Azure Cosmos DB

Cloud Platform:

Azure Cloud Services
Azure App Service
Azure Functions
Azure SQL Database
Azure DevOps

Architecture:

Microservices patterns
Software architecture best practices
Full-stack development approach

Development Tools:

Visual Studio 2022
Visual Studio Code
NuGet Package Manager
Git source control

Our Development Process

1. Requirements Analysis Understanding your needs for web API services, full-stack development, microservices architecture, or desktop applications with WPF.

2. Architecture Design Designing software architecture using proven patterns, selecting appropriate frameworks (ASP.NET Core, Blazor, Entity Framework), planning Azure Cloud Services integration.

3. Development Implementing with C# programming in Visual Studio, building Web API endpoints, designing databases with SQL Server, managing dependencies via NuGet Packages.

4. Testing Unit testing, integration testing, performance profiling, Entity Framework query optimization, Garbage Collector tuning.

5. Deployment Deploying to Azure Cloud Services, configuring CI/CD pipelines, containerizing microservices, setting up monitoring with Application Insights.

6. Support and Optimization Monitoring Common Language Runtime performance, optimizing Garbage Collector settings, updating NuGet Packages, scaling Azure resources.

Start Your .NET Development Project

Partner with STS Software for expert .NET development services that leverage the full power of C# programming, ASP.NET Core, Azure Cloud Services, and modern software architecture. Whether you need enterprise Web API services, full-stack development with Blazor, microservices architecture, WPF desktop applications, or cloud migration to Azure, our team delivers excellence.

Get Started Today

Contact STS Software for:

Free technical consultation
Architecture review and recommendations
Azure Cloud Services migration assessment
Microservices feasibility analysis
Custom development estimates

Why Partner With Us:

Expert Team: Deep expertise in .NET, C#, ASP.NET Core, Entity Framework, SQL Server
Modern Development: Visual Studio IDE, NuGet ecosystem, latest .NET features
Cloud Mastery: Azure Cloud Services integration, microservices deployment, serverless functions
Full Spectrum: Web API, Blazor, WPF, full-stack development capabilities
Architecture Excellence: Proven software architecture patterns, SOLID principles, DDD
Performance Focus: CLR optimization, Garbage Collector tuning, database query optimization
Enterprise Quality: Comprehensive testing, security best practices, scalable solutions

Frequently Asked Questions

Why choose .NET for modern application development?

.NET development with ASP.NET Core offers cross-platform capabilities, exceptional performance (top-tier benchmarks), C# programming productivity, seamless Azure Cloud Services integration, and mature software architecture patterns with extensive NuGet Packages support.

What’s the difference between .NET Framework and .NET Core/Modern .NET?

Modern .NET (formerly .NET Core) is cross-platform, open-source, modular, and optimized for cloud and microservices. ASP.NET Core is the modern web framework. .NET Framework is Windows-only and primarily for legacy WPF applications.

How do you use Entity Framework with SQL Server?

Entity Framework Core serves as an ORM connecting C# programming code to SQL Server. We use Code-First migrations for schema management, LINQ for type-safe queries, and optimize performance through compiled queries, indexing strategies, and SQL Server query profiling.

What is Blazor and when should I use it?

Blazor enables full-stack development using C# programming instead of JavaScript. Use Blazor Server for internal apps with low latency needs, or Blazor Web Assembly for PWAs and offline-capable applications. Ideal when teams have strong C# skills.

How do you implement microservices with .NET?

We build microservices using lightweight ASP.NET Core Web API services, containerize with Docker, orchestrate with Kubernetes on Azure, implement messaging with Azure Service Bus, and follow software architecture patterns like API Gateway, Circuit Breaker, and Service Discovery.

What role does Visual Studio play in development?

Visual Studio is our primary IDE for .NET development, providing IntelliSense, advanced debugging, NuGet Package Manager integration, Azure Cloud Services tools, performance profiling for CLR and Garbage Collector, Git integration, and comprehensive testing tools.

How do you handle performance optimization?

Through Common Language Runtime profiling, Garbage Collector tuning (generation analysis, server vs workstation GC), Entity Framework query optimization, SQL Server index tuning, caching with Redis, async/await patterns in C#, and Azure scaling strategies.

Can you migrate legacy .NET applications to modern .NET?

Yes, we specialize in modernizing legacy applications to ASP.NET Core, migrating WPF apps to modern .NET, upgrading to Entity Framework Core, containerizing for microservices, and moving to Azure Cloud Services with minimal disruption.