Hire .NET
Developers
Facing backend bottlenecks? Let robust .NET code power your growth. We build secure, scalable, enterprise-grade applications using ASP.NET Core — from microservices to cloud-native Azure solutions.
100+ .NET Developers · 300+ Clients · 48 Countries
var builder = WebApplication.CreateBuilder(args);
// Register services
builder.Services.AddAuthentication()
.AddJwtBearer(options => {
options.Authority = "https://auth.xonier.com";
});
builder.Services.AddDbContext<AppDbContext>(opts =>
opts.UseSqlServer(builder.Configuration["ConnectionStrings:Default"]));
builder.Services.AddMediatR(cfg => cfg.RegisterServicesFromAssembly(typeof(Program).Assembly));
// Clean Architecture Layers
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What We Build
End-to-End .NET Development Services
Build Secure, Scalable, Enterprise-Grade Applications With Our End-to-End .NET Development Services — from ASP.NET Core web apps and microservices to Azure cloud solutions and legacy modernization.
Custom .NET Web Application Development
High-performance web apps using ASP.NET Core and MVC architecture, optimized for scalability and security. From CRMs and ERPs to SaaS platforms — clean architecture, minimal APIs, and maintainable codebases built to enterprise standards.
API & Microservices Architecture
Design and implementation of RESTful APIs and microservices using .NET Core, Swagger, AutoMapper, and MediatR. We apply CQRS and Clean Architecture patterns to build loosely coupled, independently deployable services that scale horizontally.
Enterprise-Grade Security Integration
Implementation of IdentityServer and Role-Based Access Control (RBAC) following OWASP and Microsoft security guidelines. JWT, OAuth2, OpenID Connect, and multi-factor authentication — security baked in from day one, not bolted on later.
Database-Driven Business Logic
Optimized database architectures using Entity Framework Core, Dapper, and SQL Server with advanced querying and transaction safety. We design normalized schemas, write efficient migrations, and implement repository patterns for clean data access layers.
Cloud-Enabled & DevOps Ready
Integration with Microsoft Azure, AWS, or GCP; CI/CD pipelines, Docker containerization, and serverless functions. Azure App Service, AKS, Azure Functions, and Azure DevOps pipelines — fully automated from commit to production.
Legacy .NET Modernization
Migration of Web Forms or .NET Framework systems to modern .NET Core/6/7/8 versions with logic refactoring. We handle strangler-fig migrations, database schema evolution, and zero-downtime cutovers — preserving business logic while modernizing the stack.
Our Workflow
5-Step .NET Development Process
From architecture planning to post-launch maintenance — a structured process that delivers production-ready .NET applications with clean architecture, enterprise security, and zero technical debt.
Requirement Gathering & Architecture Planning
Define application goals, scalability requirements, and technical constraints. We map out the full solution architecture — Clean Architecture layers, CQRS patterns, API contracts, database schemas, and Azure infrastructure — before writing a single line of code.
Backend Design & API Development
Building robust backends and service layers using .NET Core and MVC. We implement RESTful and GraphQL APIs with Swagger documentation, AutoMapper for DTO mapping, MediatR for CQRS command/query handling, and SignalR for real-time features.
Database & Business Logic Implementation
Utilizing EF Core/Dapper with optimized querying and indexing strategies. We design normalized SQL Server schemas, implement repository and unit-of-work patterns, write efficient LINQ queries, and use Dapper for performance-critical data access paths.
Security, Testing & DevOps Setup
Integrating IdentityServer for security, writing unit tests, and configuring Docker/Azure DevOps. xUnit and NUnit for unit and integration tests, Testcontainers for database testing, and GitHub Actions or Azure Pipelines for fully automated CI/CD workflows.
Deployment & Ongoing Maintenance
Delivery of high-performance applications with post-launch support and regular updates. Azure App Service, AKS, or AWS ECS deployments with blue-green release strategies, Application Insights monitoring, and proactive performance tuning.
Technologies
Our .NET Tech Stack
ASP.NET Core 8
Web Framework
C# 12
Language
EF Core / Dapper
ORM / Data
MediatR / CQRS
Architecture
Microsoft Azure
Cloud Platform
Docker / K8s
Containers
IdentityServer / JWT
Security
xUnit / NUnit
Testing
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