List of Top Belitsoft .NET Development Services
Get secure, high-quality, fast, easy-to-use cloud-native & cloud-ready .NET solutions in time and within budget.
Full-cycle .NET Development Services
50+ Microsoft .NET development team (talented project managers, business analysts, dotNet developers, QA and support engineers, system administrators) takes care of every stage of your .NET project: solution architecture, UI/UX design, backend and frontend implementation, automated testing, deployment to your servers on Azure, ongoing monitoring, and future upgrades or scaling.
Complete mastery of the entire Microsoft development stack
We have deep expertise not only in writing C# code on .NET 8/10, .NET Core and .NET Framework, but also in related tools and platforms (Azure DevOps pipelines, SQL Server and Entity Framework, Azure Functions, MAUI or Xamarin for mobile, Power BI for reporting, etc)
Full-Stack .NET Development Services
We provide complete software solutions by combining Microsoft's .NET server technology with React (we have full-stack .NET Core + React JS teams), Angular, Vue, and Blazor user interfaces. We build both the behind the scenes databases and business logic systems plus the customer facing applications that users interact with. This all‑in‑one workflow (front‑ and back‑end work) removes the need for separate teams.
- Server-Side Development — building reliable .NET backends that process data, orchestrate business rules, and manage APIs. You get an enterprise platform that's fast, secure, and automatically grows to serve thousands of users simultaneously without slowing down or breaking.
- UI Development — creating web applications and native mobile apps that work across desktop browsers, tablets, and smartphones using a single codebase.
Enterprise Web Platform Development
ASP.NET Core (full-feature web platform) and modern .NET (the cross-platform, high-performance .NET Framework successor) support HTTPS requests routing, HTML and JSON rendering, sessions managing, and integrate with Microsoft’s identity and security stacks. By using these frameworks, we apply enterprise features and ongoing security updates from Microsoft.
Seamless System Integration
We design integrations to match the interfaces of your legacy systems — whether that’s calling SOAP services from an old ERP, writing to an on-premise SQL Server, etc. We adapt to their data formats, authentication methods, and performance constraints. For any external APIs you rely on we isolate each integration with adapter, protecting the rest of your code. Hire the best .NET developers at Belitsoft to minimize disruption after a new solution is integrated into your company’s software environment.
Azure Cloud Development Services
Our developers design the ASP.NET cloud apps' structure — its services, data stores, and networking — in a way that lets you add more capacity seamlessly as usage grows. They identify which components need to grow independently and choose patterns (stateless services, sharded databases) that support that growth.
Instead of simple website hosting or one-off VMs, we architect a full service stack — load-balanced web and API layers, highly available databases, centralized logging/monitoring, automated backups, and disaster-recovery plans — built to meet the uptime, security, and performance demands of large enterprises.
- Database and AI Integration — we deploy Azure SQL for structured data with built-in backup and disaster recovery, Azure NoSQL for unstructured data with global distribution, and integrate OpenAI services for NLP and image recognition.
- Cloud Security and Compliance — we configure Azure Active Directory for centralized authentication, Managed Identities for secure service communication, Key Vault for encrypted storage, and implement SOC 2, HIPAA, GDPR, and PCI-DSS compliance controls.
- Cost and Operations Optimization — we implement pay-as-you-go billing, configure reserved instances for predictable workloads, deploy auto-shutdown policies, and use Azure DevOps pipelines for automated testing and deployment.
ASP.NET Core Web Development Services
Websites
Our experts work with popular databases like SQLite, SQL Server, MySQL, PostgreSQL, DB2 as well as non-relational stores such as MongoDB, Redis, and Azure Cosmos DB and more.
Real-time apps
REST APIs and Microservices
Why Choose Belitsoft .NET Development Services
Lower technology costs
You spend less on developer hours, cloud compute, and fixing bugs. Belitsoft chooses the best tools and architectures. When .NET already provides a library, well-tested components and proven patterns, our engineers reuse them instead of building from scratch. We also prevent common issues (memory leaks and performance bottlenecks) in advance - not in production.
Faster project delivery
You do not wait months for a big release. Start getting usable updates every couple of weeks or faster. We work in Agile cycles and use automated build and deployment pipelines. Our developers use templates for typical parts of a .NET app. This lets us add working features more often if your use cases fit these templates and do not need much customization.
Faster time-to-market for your applications
We manage design, development, testing, and deployment in a coordinated way, so your software reaches end users sooner — letting you react more quickly to customer feedback or competitive pressures.
Lower maintenance expenses
We adhere to coding standards, write clear documentation, build automated tests, and enforce code reviews, so your product ends up with fewer bugs and intuitive core design — so you spend less on future bug fixes and emergency patches.
High‑performance applications
Our developers make your .NET software fast. Your servers work more efficiently, so you spend less money on cloud hosting. When your application has a lot of users at once, it still responds quickly. We speed up database queries, write code to reduce how much memory your app uses so it doesn't waste server resources, and cache popular data to provide it right away.
Software that adapts as your business grows
We divide the application into modules, each for a single area of functionality, and configure all dependencies externally. This makes it easy to add new features — whether that means adding a new report, or replacing a payment provider — without touching the business logic.
Clean, maintainable C# code
Our C# developers follow style guides and SOLID principles. They write unit and integration tests and handle errors properly so your application does not crash unexpectedly. Their code incorporates security best practices. They also keep methods small, use dependency injection, optimize performance, and address technical debt. Belitsoft's C# engineers create clear commit messages explaining what has been changed. Every change is checked automatically by tools that test code quality. They write documentation for how their code works and for their APIs, and leave logs of what happens. You get monitoring to know if something breaks.
Our code covers all aspects of a typical application:
- Data access layer — connecting to SQL Server, Oracle or NoSQL stores, executing queries, mapping results to objects.
- Business logic layer — enforcing rules, calculations, workflows.
- Presentation/UI layer — rendering web pages with ASP.NET, desktop windows with WPF, or mobile screens with MAUI.
- Integration points — calling external APIs, message queues or background processing tasks.
API integration developers
.NET Mobile Development
Native mobile apps. We build beautiful fully native or hybrid apps with C# and Xamarin/.NET MAUI (evolution of the Xamarin.Forms toolkit). Xamarin/.NET MAUI extends the .NET developer platform with tools and libraries specifically for building apps for Android, iOS, tvOS, watchOS, macOS, and Windows. Our .NET MAUI developers use dozens of cross-platform APIs for accessing native device features (GPS/geolocation, isolated storage, sensors (accelerometer, compass, and gyroscope), battery and network states, camera, and more.
Backend services for native mobile apps. We use ASP.NET Core to create backend services to support native mobile apps. While ASP.NET Core may act as an API backend, Angular, Vue or React may act as the rich, client-side user interface (UI) of your frontend app.
Modernization of your .NET-based software and related infrastructure to improve performance
Our application modernization services focus on issues with slow performance, if your staff or clients struggle with smooth web and mobile access to your .NET-based applications, and you want to scale up the team of .NET developers quickly.
Optimizing existing functionality
Targeted refactoring of the legacy code by implementing more modern and efficient approaches that allow you to solve tasks faster;
Optimizing databases (MSSQL, MySQL, PostgreSQL, SQLite, LiteDB, etc.) for minimizing the response time of users’ requests;
Software architecture redesigning (if necessary): separating frontend and backend by creating SPA for each application and REST Web API to increase servers performance up to 30%.
.NET Migration Services (Migrating to .NET Core)
Checking compliance with .NET Core requirements to avoid accessibility or compatibility issues after migration;
Upgrading technologies incompatible with .NET Core, as well as ensuring that all necessary dependencies, including APIs, still work;
Migrating platform-specific (native) and 3rd-party libraries to NET.Core;
Further .NET software optimization after migration, if needed, such as query profiling and optimizing the database, reducing the use of the stored procedures in DB, using more effective APIs for .NET Core for better performance.
Migration to the Cloud
Choosing a cloud provider that will best deliver the value your company expects from migrating your .NET software to the cloud by creating a Proof of Concept;
Assessing scope of work and expenses to offer you the most straightforward and suitable migration plan;
Modernizing .NET software for any leading cloud platform to lower migration costs and meet provider-specific requirements;
Deploying your .NET software to the cloud with near-zero downtime implementing a phased rollout including database migration, security enhancement, and serverless compute with Azure Functions;
Implementing cloud-native .NET development on Azure to build or modernize applications using microservices, containers, and Azure-managed services — with built-in scaling, telemetry (via Application Insights and OpenTelemetry), and modular deployment for simpler maintenance, monitoring, and upgrade;
Further app optimization to reduce costs and expand the benefits of using cloud services to the maximum.
.NET Software Testing and Quality assurance
Ensuring excellent software performance by applying functional testing, performance testing, migration testing - automated where appropriate;
Enhancing User Experience with the help of usability testing, GUI testing, and others on demand;
Ensuring smooth integration of new features into your .NET software using integration testing, regression testing and Unit testing.
Why Choose Belitsoft
- Our top .NET developers have 10+ years of dotNet programming experience in the area and gained an official Microsoft certification. To receive the official MCSD: Web Applications status certificate our coders successfully passed 3 exams: Programming in HTML5 with JavaScript and CSS3, Developing ASP.NET MVC Web Applications and Developing Microsoft Azure and Web Services.
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In 2015, Belitsoft .NET programming company got an official Microsoft Gold Application
Development company status. This status reflected not only the highly qualified staff
and software quality of Belitsoft, but also proved the significant experience as a Net
app development company.
- Hire ASP.NET MVC programmers at Belitsoft whether you have small or large project. Our Microsoft Net application development company has long-term clients who ordered custom ASP web development and serverless solutions - and now receive technical maintenance and customer support services for their developed products.
- We have big experience of .NET development including ASP development: web applications, web portals, custom SharePoint-based solutions for EDMS and eLearning, applications for Office 365, etc. See our selected .NET case studies.
- Each custom solution receives support during a warranty period. Belitsoft .NET software development company provides 6+ month warranty with SLA (Service Level Agreement) for the projects developed by our .NET / ASP developers and on-demand prioritized support.
- Outsourced .NET application development (including dedicated ASP.NET teams) using dedicated teams and flexible cooperation conditions shortens time-to-market period and grants in time and within budget delivery.
- Our clients trust us and value all the range of services we provide from .NET development consulting to product development and maintenance. See our clients and testimonials.
Technologies and tools we use
Solid understanding of parallel programming, async/await, and the TPL library
Frequently Asked Questions
Companies choose our custom .NET software development services to scale their IT resources quickly and reduce delivery time. Hire dedicated .NET developers to get high-performing and easily scalable team that can be involved in your projects on demand.
Custom software development based on .NET technologies is one of the priority areas. Since 2006, our dotNet experts have been offering .NET development services globally (the USA, the UK, European countries, Canada and others).
Belitsoft is capable of .NET applications development, Internet and Intranet-oriented websites design and deployment, and robust, multi-functional web applications creation. We have successfully implemented projects of different complexities and for various industries.
Our .NET developers are always aware of the latest trends in Microsoft production to provide our customers with effective business solutions. They use C#-based cross-platform .NET platform, created by Microsoft, to build web (with ASP.NET Core extension), mobile, desktop, cloud apps, AI-enhanced microservices, and ML.NET integrations. Outsource .NET development to Belitsoft!
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Our Clients' Feedback
Belitsoft has been the driving force behind several of our software development projects within the last few years. This company demonstrates high professionalism in their work approach. They have continuously proved to be ready to go the extra mile. We are very happy with Belitsoft, and in a position to strongly recommend them for software development and support as a most reliable and fully transparent partner focused on long term business relationships.
Global Head of Commercial Development L&D at Technicolor
They use their knowledge and skills to program the product, and then completed a series of quality assurance tests. We were working in an agile way with them. Belitsoft performed very well throughout our project. We are definitely looking at Belitsoft as a long-term partner.
Service Delivery Director at Crimson (United Kingdom)
I highly recommend Belitsoft for website design and development. We were up against a tight deadline to launch the project. The work was delivered on time and within budget! I will continue working with Belitsoft as a valued partner for our web development!
Program Administrator at UC Berkeley (United States)
We have worked with Belitsoft team over the past few years on projects involving much customized programming work. They are knowledgeable and are able to complete tasks on schedule, meeting our technical requirements. We would recommend them to anyone who is in need of custom programming work.
Main Partner at Hathway Tech (United States)
Belitsoft company is able to make changes instantly. One of our internal engineers has commented about how clean their code is. Belitsoft seems to know what they're doing, which I appreciate.
Co-Founder at HOWCAST MEDIA (United States)
It was a great pleasure working with Belitsoft software development company. New requirements and adjustments were implemented fast and precisely. We can recommend Belitsoft and are looking forward to start a follow-up project.
Head of Division at Fraunhofer FIT (Germany)
Belitsoft company has been able to provide senior developers with the skills to support back end, native mobile and web applications. We continue today to augment our existing staff with great developers from Belitsoft.
CEO at Apollo Matrix (United States)
Belitsoft company delivered dedicated development team for our products, and technical specialists for our clients' custom development needs. We highly recommend to use this company if you want the same benefits.
Managing Director at Key2Know A/S in 2012 (Denmark)
We approached BelITsoft with a concept, and they were able to convert it into a multi-platform software solution. Their team members are skilled, agile and attached to their work, all of which paid dividends as our software grew in complexity.
COO at Regenerative Medicine LLC (United States)
Having worked with Belitsoft as a service provider, I must say that I'm very pleased with the company's policy. Belitsoft guarantees first-class service through efficient management, great expertise, and a systematic approach to business. I would strongly recommend Belitsoft's services to anyone wanting to get the right IT products in the right place at the right time.
CEO at Moblers
If you are looking for a true partnership Belitsoft company might be the best choice for you. They have proven to be most reliable, polite and professional. The team managed to adapt to changing requirements and to provide me with best solutions. I strongly recommend Belisoft.
Director at ShowCast Limited (Germany)
I expected and demanded a lot of you at Belitsoft company, but you exceeded my expectations. You acted pro-actively, challenged me at the right moments. Thanks!"
CEO at Ticken B.V. (Netherlands)
We have been working for over 10 years and they have become our long-term technology partner. Any software development, programming, or design needs we have had, Belitsoft company has always been able to handle this for us.
Founder from ZensAI (Microsoft)/ formerly Elearningforce