.NET Development for the Systems Your Business Runs On

We build, modernize, and maintain .NET applications for enterprise teams where the platform runs critical business operations.

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Trusted and top rated tech team

When your platform modernized and your application didn't

Your .NET application handles critical operations but it’s running on patterns the platform moved past. .NET 10 ships Native AOT, minimal APIs, and Semantic Kernel for AI integration. Your codebase is still on .NET 6 with full controllers, no Blazor, and AI features built in a separate Python stack. Curotec engineers modernize .NET applications incrementally so the business keeps running while the architecture catches up.

Our capabilities include:

ASP.NET Core modernization and minimal API adoption
Blazor migration from JavaScript frontends
Semantic Kernel integration for AI features in C#
.NET Aspire configuration for cloud-native services
Native AOT compilation for performance-critical workloads
Version upgrades, security patching, and LTS alignment

Who we support

We build and modernize .NET applications for teams running critical business systems in finance, healthcare, and enterprise operations where stability isn’t optional.

Enterprise Teams on Older .NET Versions

Your application runs on .NET 6 or earlier with full controllers, no minimal APIs, and dependencies the platform has moved past. Each version upgrade feels risky and your team keeps postponing it. You need engineers who migrate incrementally without disrupting the operations your business depends on.

Companies Adding AI Without Python

Your AI features run in a separate Python stack maintained by a different team. Semantic Kernel lets you integrate LLMs directly into your C# codebase with the same auth, data access, and deployment pipeline your application already uses. You need engineers who connect both worlds.

Engineering Leads Moving to Cloud-Native

Your .NET application deploys as a monolith and scaling means bigger servers. You need .NET Aspire orchestration, container deployments, and service boundaries that let your teams ship independently without a full rewrite of what already runs in production.

Ways to engage

We offer a wide range of engagement models to meet our clients’ needs. From hourly consultation to fully managed solutions, our engagement models are designed to be flexible and customizable.

Staff Augmentation

Get access to on-demand product and engineering team talent that gives your company the flexibility to scale up and down as business needs ebb and flow.

Retainer Services

Retainers are perfect for companies that have a fully built product in maintenance mode. We'll give you peace of mind by keeping your software running, secure, and up to date.

Project Engagement

Project-based contracts that can range from small-scale audit and strategy sessions to more intricate replatforming or build from scratch initiatives.

We'll spec out a custom engagement model for you

Invested in creating success and defining new standards

At Curotec, it is more than just the solutions we build. We value relationships between our people and our clients — that partnership is why CEOs, CTOs, and CMOs turn to Curotec.

Replatforming a clinical decision support tool used by physicians globally

Why choose Curotec for .NET development?

Most .NET agencies list Microsoft certifications. Our engineers build and maintain the applications those certifications describe. We modernize to minimal APIs, Blazor, and Semantic Kernel incrementally because we’ve done it across systems in finance and healthcare where a failed deploy isn’t a rollback — it’s a business incident. Your .NET application stays live while the architecture moves forward.

1 Extraordinary people, exceptional outcomes

Our outstanding team represents our greatest asset. With business acumen, we translate objectives into solutions. Intellectual agility drives efficient software development problem-solving. Superior communication ensures seamless teamwork integration.

2 Deep technical expertise

We don’t claim to be experts in every framework and language. Instead, we focus on the tech ecosystems in which we excel, selecting engagements that align with our competencies for optimal results. Moreover, we offer pre-developed components and scaffolding to save you time and money.

3 Balancing innovation with practicality

We stay ahead of industry trends and innovations, avoiding the hype of every new technology fad. Focusing on innovations with real commercial potential, we guide you through the ever-changing tech landscape, helping you embrace proven technologies and cutting-edge advancements.

4 Flexibility in our approach

We offer a range of flexible working arrangements to meet your specific needs. Whether you prefer our end-to-end project delivery, embedding our experts within your teams, or consulting and retainer options, we have a solution designed to suit you.

What we build and maintain in .NET

ASP.NET Core & Minimal APIs

Build and modernize APIs with ASP.NET Core using minimal endpoints, routing, and dependency injection matched to your traffic patterns.

Blazor & Full-Stack C#

Replace JavaScript frontends with Blazor components that share C# between client and server, cutting maintenance and context switching.

AI Integration With Semantic Kernel

Add AI features through Semantic Kernel so LLM calls run inside your C# codebase with your existing auth and deployment pipeline.

Cloud-Native & .NET Aspire

Configure .NET Aspire orchestration, container deployments, and service discovery so your app scales as services, not a monolith.

Performance & Native AOT

Compile with Native AOT for millisecond cold starts, smaller container images, and lower compute costs on serverless workloads.

Version Upgrades & LTS Alignment

Upgrade across .NET versions with dependency fixes, compatibility testing, and patches aligned to Microsoft's LTS support schedule.

The .NET ecosystem we build in

Web Frameworks & API Development

Our engineers build APIs and services with ASP.NET Core patterns matched to your application’s complexity and team structure.

ASP.NET Core – Cross-platform framework for web APIs, MVC applications, and real-time services with middleware pipeline configuration
Minimal APIs – Lightweight endpoint declarations that reduce boilerplate for microservices and simple CRUD operations
gRPC for .NET – High-performance RPC framework for low-latency service-to-service communication with protobuf contracts
SignalR – Real-time bidirectional communication for live dashboards, notifications, chat, and collaborative features over WebSockets
Dapr – Distributed application runtime that simplifies service invocation, state management, and pub/sub across microservices
MediatR – In-process messaging library implementing CQRS and mediator patterns for clean separation between API handlers and business logic

Data Access & Storage

We connect your application to relational and document databases with ORMs and caching layers tuned to your query patterns.

Entity Framework Core – Full-featured ORM with migrations, LINQ queries, change tracking, and support for PostgreSQL, MySQL, and SQL Server
Dapper – Lightweight micro-ORM for raw SQL execution with high throughput on read-heavy workloads and stored procedure integration
SQL Server – Microsoft’s relational database with Always On availability, columnstore indexes, and native .NET integration through EF Core
Redis – In-memory cache and session store for reducing database load, managing distributed locks, and pub/sub messaging
Cosmos DB – Globally distributed NoSQL database with multi-model support, automatic scaling, and low-latency reads for geo-distributed applications
Elasticsearch – Full-text search and analytics engine integrated through NEST client for log analysis, product search, and vector queries

AI & Machine Learning

Curotec adds AI capabilities to your C# codebase so intelligent features ship without a separate language stack.

Semantic Kernel – Microsoft’s SDK for connecting .NET applications to LLMs with prompt management, plugins, and AI orchestration
ML.NET – Native machine learning framework for training classification, regression, and recommendation models in C# without Python dependencies
Azure OpenAI SDK – .NET client for GPT-5 and embedding models with function calling, structured output, and enterprise security through Azure
Azure Cognitive Services – Pre-built AI models for vision, language, speech, and decision-making integrated through .NET client libraries
ONNX Runtime – Cross-platform inference engine for running trained models inside your .NET application with hardware acceleration
Vector Search – Embedding storage and retrieval through SQL Server, Cosmos DB, or Elasticsearch for RAG pipelines in .NET

Frontend & Cross-Platform

Our developers build UIs with Blazor and cross-platform apps with MAUI so your team stays in C# across every layer.

Blazor Server – Server-rendered interactive components with real-time UI updates over SignalR and full access to .NET server-side libraries
Blazor WebAssembly – Client-side execution of C# components in the browser for offline-capable, single-page applications without JavaScript
Blazor Web App – Unified rendering model that combines server and client interactivity with per-component render mode selection
.NET MAUI – Single C# codebase for native iOS, Android, macOS, and Windows applications replacing Xamarin with modern platform APIs
MudBlazor – Material Design component library for Blazor with accessibility, theming, and data-heavy enterprise UI patterns
Radzen Blazor – Enterprise component suite with DataGrid, scheduler, charts, and form controls optimized for line-of-business applications

Testing & Observability

We validate .NET applications with testing and observability tools configured for your CI pipeline and production environment.

xUnit – Default testing framework for .NET with trait-based organization, parallel execution, and dependency injection in test classes
NUnit – Established testing framework with constraint-based assertions, parameterized tests, and fixture lifecycle management
Playwright – End-to-end browser testing for validating full application flows across Blazor and ASP.NET Core frontends
OpenTelemetry – Distributed tracing, metrics, and logging that instruments your .NET services for observability across Datadog or Azure Monitor
Serilog – Structured logging with sinks for console, file, Seq, and cloud destinations that make production debugging searchable
Application Insights – Azure-native telemetry with request tracing, dependency tracking, and failure analysis for production .NET workloads

Deployment & Infrastructure

Curotec deploys .NET applications with containerized builds, IaC provisioning, and CI pipelines matched to your hosting needs.

Docker – Multi-stage builds with optimized .NET runtime images for consistent deployments across staging and production
Kubernetes – Orchestrated scaling with health probes, Helm charts, and resource limits configured for .NET service workloads
Azure – App Service, AKS, Azure Functions, and Azure DevOps pipelines for teams standardized on the Microsoft cloud
AWS – ECS, Lambda, and App Runner deployment for .NET teams running outside the Microsoft ecosystem
Terraform – Infrastructure-as-code for provisioning compute, databases, networking, and environment-specific configuration
GitHub Actions – CI workflows that build, test, and deploy .NET applications on every pull request with environment gates

FAQs about our .NET development services

Should we upgrade to .NET 10 now?

If you’re on .NET 6 or earlier, yes — .NET 6 is already out of LTS support. We stage the upgrade one major version at a time, resolving breaking changes and testing at each step. Your application stays live throughout.

Can we add AI without building in Python?

That’s exactly what Semantic Kernel solves. We integrate LLM calls, prompt management, and retrieval directly into your C# codebase using your existing auth, data access, and deployment pipeline. No second language stack to maintain.

Is Blazor ready for production?

Yes. Blazor Server and Blazor WebAssembly are both mature. We’ve migrated JavaScript frontends to Blazor for enterprise teams that wanted their entire stack in C#. The rendering model now lets you choose server or client execution per component.

How do you handle monolith to microservices?

Incrementally. We identify service boundaries in your existing application, extract them into independent microservices with .NET Aspire orchestration, and connect them through message queues or gRPC. The monolith shrinks over time instead of disappearing overnight.

Do you work on both Azure and AWS?

Yes. Most .NET teams start on Azure but plenty run on AWS. We deploy to either — App Service and AKS on Azure, ECS and Lambda on AWS. Your hosting platform doesn’t change how we build the application.

Can your engineers work with our existing team?

We work in your repo, follow your conventions, and pair with your developers on patterns they haven’t adopted yet. The goal is your team confident with minimal APIs, Blazor, and Semantic Kernel after our engagement ends.

Ready to have a conversation?

We’re here to discuss how we can partner, sharing our knowledge and experience for your product development needs. Get started driving your business forward.