Name: Belitsoft
Telephone: +1 (917) 410-57-57

ASP.NET Application Development Services

We offer custom ASP.NET web development services. Each software product is tailored to meet a specific set of business requirements, designed to fit the workflows, data models, and user roles that exist inside your company.

ASP.NET Migration Services

We move legacy ASP.NET applications onto the ASP.NET Core to address performance and security issues, or missing features like cross-platform support. Our ASP.NET MVC developers update dependencies and may rethink app’s architecture.

Web Application Development

We create browser-based applications with responsive interfaces and reliable backend. Every system is easy to use, quick to respond, and ready to grow - whether its'a tool your team uses daily or a platform your clients depend on. You get a product that tested under pressure, and structured so updates don’t turn into rewrites.

API Development with ASP.NET Core

We build RESTful APIs that connect systems and move data reliably. Each API is versioned, documented, and designed around the calls your systems make every day - so integrations hold up under real load, not just in staging. Extend functionality, link legacy systems, and support new products without breaking what's already working with ASP.NET Web API Developers.

ASP.NET Core Cloud-Ready Development

We design and deploy applications on cloud platforms like Azure, AWS, and GCP. They scale when usage spikes and stay stable. Whether you’re expecting something new or migrating from older systems running on your servers, we use the cloud to simplify deployment, cut downtime, and keep performance predictable.

Mobile Application Development

We craft mobile apps for iOS and Android using .NET MAUI or native code. Backed by ASP.NET Core APIs, each app is fast to navigate, consistent across platforms, has intuitive UI and relies on backend that manage auth, keep data in sync, and support new features.

Our engineers are vetted through an ASP.NET Core skills framework to ensure technical depth and sound architecture decisions.

Get started with trusted ASP.NET Core developers

Portfolio

Rescuing a Failed Bot Protection Project: Akamai Configuration and Ongoing Support (2026)

That month the site was down almost all the time. The client's business depends on the leads coming through the site, so when the site went down, the business itself was at risk. Our client needed a development partner, not just an Akamai consultancy and implementation services.

Custom Investment Management and Copy Trading Software with a CRM for a Broker Company

Custom Investment Management Software for a Broker Company

For our client, we developed a custom financial platform whose unique technical features were highly rated by analysts at Investing.co.uk, compared to other forex brokers.

Mixed-Tenant Architecture for SaaS ERP to Guarantee Security & Autonomy for 200+ B2B Clients

SaaS ERP Mixed-Tenant Architecture for 200+ B2B Clients

A Canadian startup helps car service bodyshops make their automotive businesses more effective and improve customer service through digital transformation. For that, Belitsoft built brand-new software to automate and securely manage daily workflows.

15+ Senior Developers to scale B2B BI Software for the Company Gained $100M Investment

Senior Developers to scale BI Software

Belitsoft is providing staff augmentation service for the Independent Software Vendor and has built a team of 16 highly skilled professionals, including .NET developers, QA automation, and manual software testing engineers.

Mobile App for a Delivery Marketplace

Our client, a European medium-sized logistics provider, came to Belitsoft with a long-term strategy for entering the same-day delivery market with the help of a mobile app.

Migration from .NET Framework to .NET Core and AngularJS to Angular for HealthTech Company

Belitsoft migrated EHR software to .NET for the US-based Healthcare Technology Company with 150+ employees.

Belitsoft Blog for Entrepreneurs

Top C# Development Companies: 2026 Enterprise Review

C# is nowadays much more than just a solid workhorse for large enterprise systems. It's now a fast-moving platform for advanced development, and part of the core of the Microsoft ecosystem. The language has great performance, versatility, and efficiency for a wide range of use cases that few other platforms can match. C# is consistently in the top three pure backend languages aside of Python and Java for enterprise-level applications according Stack Overflow Developer Survey (2025), with more than 30% of professional developers using it to build high-frequency trading systems or cross-platform mobile apps, according to data. It was named TIOBE's Programming Language of the Year for 2025. As a result, there is a growing need for professional C# development services that can handle the complexity of today's world.

Dmitry Baraishuk • 14 min read

C# .NET Staff Augmentation Services

If you need help filling C# and .NET skill gaps through consulting, migration, or custom software development, Belitsoft's C# engineers can join your team and accelerate the work.

Dmitry Baraishuk • 12 min read

Inside JPMorganChase' Fintech .NET Product Engineering

In 2026, senior .NET developers help JPMorganChase's Commercial & Investment Bank teams in Irvine (CA), Plano (TX) and Chicago (IL) design and deliver software products.

Dmitry Baraishuk • 8 min read

Hire AI .NET Developers

You can hire an AI/.NET developer on demand for the length of your project. We provide specialized talent with no long-term overhead.

Dmitry Baraishuk • 15 min read

.NET Developer Staffing in 2026

.NET developer staffing is a service that helps companies find skilled C# and .NET developers for web, cloud, desktop, and back-end software projects.

Dmitry Baraishuk • 4 min read

Hire ASP.NET Developers

Hire ASP.NET developers from Belitsoft to cover the entire development cycle from initial design to coding, testing, deployment, and post-deployment support.

Dmitry Baraishuk • 5 min read

Inside Citi's Banking .NET Modernization and Process Automation

In 2026, .NET developers help Citi's Enterprise Operations & Technology team in Jacksonville and Tampa, Florida, modernize its legacy financial platforms.

Dmitry Baraishuk • 3 min read

Features and benefits of the built-in OpenAPI support in ASP.NET Core 10

Built-in OpenAPI is another strong supporting point for migrating to .NET 10.

Denis Perevalov • 13 min read

.NET Development Nearshore

How to find and hire the best nearshore .NET developers in 2026?

Alexander Kom • 17 min read

.NET Linq? ZLinq

Knowing when to use tools like ZLinq separates less experienced developers from senior ones. Our skilled .NET engineers can make old systems run faster without rebuilding them from scratch.

Denis Perevalov • 8 min read

ASP.NET to ASP.NET Core Migration in the USA

Should we rewrite our entire database just to fit EF Core? Do we have to build the menus from scratch and purchase an upgrade to the latest DevExpress?

Dmitry Baraishuk • 2 min read

Top 10 Offshore .NET Developers [2026]

Offshore .NET developers are software engineers who specialize in Microsoft’s .NET stack (C#, ASP.NET Core, Entity Framework, Azure, Blazor, etc.).

Alexander Kom • 16 min read

.NET Development Outsourcing: How to Select the Right Partner

Belitsoft fills key roles, including .NET developers, QA analysts, UX/UI designers, DevOps engineers, and more, ensuring high-quality results.

Alexander Kom • 16 min read

.NET Aspire Benefits and Implementation Overview

Belitsoft helps product teams move to .NET Aspire without disrupting day-to-day work.

Denis Perevalov • 12 min read

Hire .NET MAUI Developer in 2026

Partner with Belitsoft for your .NET MAUI projects and use our expertise in .NET development to build secure, scalable, and cross-platform applications tailored to your industry.

Denis Perevalov • 10 min read

Top 10 .NET Development Companies for Your Software Project [2026]

Top 10 .NET Development Companies [2026]

Good .NET companies, as one-stop shops, manage the development of entire projects with end-to-end services.

Dmitry Baraishuk • 23 min read

Top 10 Azure Development Companies for Your Project [2026]

Top 10 Azure Development Companies [2026]

The best Azure companies have engineers have passed certification exams. They have experience with large, complex projects for big companies. Their customers are satisfied with the results.

Alexander Kom • 6 min read

.NET 10 and the State of .NET Development in 2026

.NET 10 is the Long Term Support (LTS) release in November 2025.

Dmitry Baraishuk • 7 min read

Cloud .NET Development

Making choices about cloud technology without deep design knowledge or architectural expertise leads to escalating long-term problems, especially for companies that hire low-cost .NET development agencies to save money upfront. This technical debt worsens over time and costs companies three to ten times more to fix than the initial software development. Extremely low-cost .NET developers frequently deliver applications as a single, large unit (monolithic applications) that cannot scale to support growth. This forces clients to completely rebuild the software (re-architecture) soon after release. Vendor lock-in adds further risk: you become overly dependent on a single cloud provider such as AWS, Azure, or GCP. When applications perform poorly, these performance bottlenecks are usually caused by poor application architecture too. To avoid these risks, companies should work with development firms that can demonstrate specialized expertise in cloud-native architecture.

Alexander Kom • 18 min read

.NET Development Services for Healthcare

When hospitals and HealthTech companies are looking for agencies that provide custom software development in the healthcare domain using .NET technologies, they need not just programmers. They want to see partners who understand the healthcare industry: how doctors, nurses, and patients use the software, and the strict rules, such as patient privacy laws, that must be followed. Those partners know that if the software fails, it could harm a patient, result in huge legal fines, and destroy the hospital's or company's reputation.

Alex Shestel • 15 min read

C# Development Outsourcing: Hire Nearshore C# Developers

Outsourcing C# software development can provide skilled engineers, reduce costs, and give you flexibility.

Alexander Kom • 11 min read

Hire ASP.NET Web API Developer

ASP.NET Web API developers create backend services that connect various systems, mobile apps, and third-party data sources for startups and corporations. They build REST APIs using C# and ASP.NET Core. Companies hire API developers to update legacy .NET systems, build microservices, or create API gateways. They design APIs, optimize performance, test thoroughly, protect from attacks, and maintain them. A dedicated ASP.NET Web API developer works almost full time on your long-term project. Hiring developers by the hour is ideal for changing project needs, while fixed-price contracts are for projects with clear scopes. .NET developers in Eastern Europe cost about half as much as those in North America. When hiring, look for experience working with large, complex enterprise APIs and creating reliable cloud software.

Alexander Kom • 14 min read

Custom ASP.NET Development Services in 2025

Custom ASP.NET development services are professional software development of customized applications using Microsoft’s ASP.NET Core framework. A team of experienced .NET developers is hired (often externally) to design, develop, and deploy tailored web applications or backend systems from the ground up, aligning with a client’s specific business requirements. With custom ASP.NET development, companies receive software uniquely fitted to their workflows and goals. A custom development service covers the full development lifecycle, from requirements analysis and UI/UX design via coding, quality assurance, deployment, and support. The result is a web application built from scratch in ASP.NET, often integrating with other Microsoft technologies (such as Azure cloud or SQL Server database)

Alexander Kom • 16 min read

.NET Framework to .NET 8

Do not move your .NET Framework apps to .NET Core because it stopped getting updates in 2022. Go straight to .NET 8 or to .NET 10 (a long-term support version that will be released in November 2025). .NET 8 replaces .NET Core and covers everything .NET Core did, plus more. Microsoft now calls .NET 8 just ".NET," but the web framework is still ASP.NET Core (newer version). If you have old ASP.NET Framework web apps, you need to move them to ASP.NET Core on .NET 8. You can break this migration into two steps. First, move your shared code to the new .NET runtime. Then, move your web app from ASP.NET Framework to ASP.NET Core.

Denis Perevalov • 19 min read

Outsource ASP.NET Development To Belitsoft

This guide explains how to outsource ASP.NET projects effectively and what to look for in an outsourcing partner – especially for projects of various scopes, budgets, and durations.

Alexander Kom • 19 min read

ASP.NET Cloud Development: Enterprise Strategy and Best Practices

Building modern enterprise applications with ASP.NET in the cloud requires consideration of application architecture, cloud services, and deployment models. This article outlines how to develop and deploy ASP.NET applications (including MVC web apps, Blazor interactive UIs, and Web API services) on leading cloud platforms. It highlights key cloud features (like auto-scaling, CI/CD, containerization, and serverless functions) and compares Azure, AWS, and Google Cloud for hosting ASP.NET solutions. This guide is for technical decision-makers to plan a scalable, and compliant enterprise ASP.NET cloud architecture.

Denis Perevalov • 14 min read

Azure Services for .NET Developers

Certain Azure services stand out as most relevant for cloud-native .NET applications. Below is a breakdown of key Azure-native tools and services - across compute, data, integration, and management - that executives consider in their cloud strategy. Each of these services is fully managed by Microsoft, which not only speeds up development but also improves cost-efficiency and reliability. We also include notes on the ROI/cost model for each service and typical use cases.

Denis Perevalov • 4 min read

Cloud-Native .NET Development on Azure

Azure supports both new development and modernization for companies using Microsoft .NET. This guide for senior technical decision-makers (CIO/CTO/VP Engineering) outlines good architecture patterns, Azure service options, and deployment practices for cloud-native .NET applications.

Denis Perevalov • 13 min read

.NET Development Tools and Technologies [2025 Trends]

The 2025 .NET stack blends Microsoft-supported open-source and commercial components: high-performance application frameworks, Azure cloud services, developer productivity extensions, and DevOps automation. Together, they allow engineering teams to build and run scalable, cross-platform workloads for web, mobile, cloud, and AI while meeting performance and security requirements. Let's describe each tool and its functions, summarize its benefits, and explain why enterprise development teams use it.

Denis Perevalov • 13 min read

Blazor development services | Blazor development company

Belitsoft has released a guide for technology leaders who want to move faster with Blazor. Inside: proven patterns for state management, security, authentication, and role-based UI, walkthroughs on forms, APIs, JavaScript interop, debugging, automated tests with bUnit and Playwright plus CI/CD and cloud deployment checklists. Future roadmap insights for .NET 10 are included.

Denis Perevalov • 16 min read

.NET Machine Learning & AI Integration

Developers can add artificial intelligence features to existing or new C# applications. Adding AI features to .NET software can now be accomplished very fast.

Denis Perevalov • 14 min read

.NET Performance Testing

For organizations without in-house performance testing skills, Belitsoft is the partner that plans, simulates, and automates performance testing, integrates these tests into the CI/CD pipeline, and gives the confidence that every release will scale.

Denis Perevalov • 13 min read

.NET Unit Testing

Technical executives and decision-makers (CTOs, VPs of Engineering, Engineering Directors) who control budget and strategy for software testing at some stage realize they have a critical problem - inadequate testing is a business risk, not just a technical issue. Poor testing directly impacts brand value and customer satisfaction. Belitsoft helps engineering teams implement rigorous, scalable unit testing strategies that cut release risks, accelerate development cycles, and deliver provable ROI. We bring the tools, the team, and the testing mindset to help you deliver software products with confidence.

Denis Perevalov • 9 min read

Dot NET Application Migration and Development Services Company

With more than two decades devoted to .NET modernization, we’ve helped over 1,000 organizations achieve their technology goals - including the delivery of 200+ complex projects.

Denis Perevalov • 7 min read

Dot NET Automated Testing

Poor software quality has a huge business cost – $2.41 trillion per year. Automated testing for .NET applications is a business-critical, board-level strategy. Automation frees engineers from repetitive work, letting them focus on higher-value tasks, boosting morale and retention. It mitigates risk. Earlier defect detection and higher application stability reduce costly production failures, data breaches, and reputational damage. Superior product quality and faster delivery strengthen competitive positioning and bottom-line results.

Denis Perevalov • 10 min read

ASP.NET Core Development: Skillset Evaluation

Executives making hiring, team composition, and skill-gap decisions need a practical guide for evaluating ASP.NET Core developers. This ASP.NET Core skillset evaluation framework benefits technical leaders, hiring managers, and talent acquisition professionals by providing a structured, comprehensive approach to assessing developer competency. Hiring managers can avoid costly mis-hires by using the framework’s detailed skill criteria, team leads can proactively close gaps, ensuring project success, and executives can ensure technical teams support enterprise priorities. Each section includes "proficiency indicators" that clearly specify what to look for when evaluating candidates.

Denis Perevalov • 14 min read

Top .NET Developers in 2025

What defines a top .NET developer in 2025? For technology leaders assembling or scaling .NET development teams, a “top” developer is a full-spectrum engineer. Belitsoft offers cross-functional .NET talent - architects, full-stack engineers, DevOps, QA, and data scientists - who translate .NET best practices into secure production systems. Whether you’re modernizing a 20-year-old monolith or launching a cloud-native, AI-enabled SaaS, Belitsoft provides the top .NET engineers to make it happen.

Denis Perevalov • 11 min read

Hire Azure Developers in 2025

Belitsoft is your Azure development partner when you need industry-aware engineers, real-time AI, and cloud solutions that work in healthcare, finance, insurance, manufacturing and logistics. Want your Azure plans to succeed? Call us. We bring the full stack - from containers to compliance.

Denis Perevalov • 11 min read

Hire Azure Functions Developers in 2025

Belitsoft is the partner for companies that need Azure Functions to make serverless the heart of secure, compliant, AI-powered systems. Whether it's real-time alerts in hospitals, fraud detection in fintech, or WMS sync in logistics, Belitsoft provides vetted Azure Functions developers who build production-grade, and future-proof solutions.

Denis Perevalov • 10 min read

Hire ASP.NET MVC Developers in 2025

ASP.NET Core works on different operating systems and runs fast. MVC is built on top of it. Teams still use this setup all the time in 2025. Sure, Blazor and Minimal APIs work for some projects. But when you need an app that handles lots of data and shows web pages from the server, or when you need a solid API, most teams pick MVC. MVC keeps your code organized in clear sections. It's easy to test. It comes with lots of useful features already built in. Big companies love it. Banks, hospitals, and insurance companies keep using their MVC apps. Every time Microsoft updates .NET, MVC gets better too. Your code runs faster, security gets stronger, and cloud features work better. You can see this in job postings. Companies still want MVC developers to keep their existing apps running and help move them to newer versions of .NET.

Denis Perevalov • 8 min read

Hire .NET Core + React JS Developers in 2025

Companies from various industries rely on .NET Core (now the unified .NET platform) for secure, high-speed backend, and on ReactJS for responsive frontend. Together the pair scales, ticking the boxes for performance and compliance. To make that picture real, hiring teams hunt for engineers who can craft APIs, juggle data workflows, and shape good interfaces. All of it has to play with industry rules - HIPAA, PCI DSS, you name it - before the product sees daylight.

Denis Perevalov • 12 min read

Hire SignalR Developers in 2025

Belitsoft brings real-time engineering expertise, domain fluency, and scalable cloud-native delivery to every SignalR project. Whether you need live chat, collaborative editing, IoT control, or high-volume dashboards, our SignalR specialists deliver low-latency systems that scale, secure, and perform - across cloud, on-premises, and hybrid infrastructures.

Denis Perevalov • 15 min read

Azure SignalR in 2025

SignalR technology promises lower time-to-market, scalability, and tight Azure alignment. Real-time UX (dashboards, notifications, IoT telemetry) is now a baseline user expectation and is directly tied to KPIs such as conversion and downtime reduction. Failing to meet those expectations risks customer churn and SLA breaches, compelling the audience to evaluate real-time stacks. Azure SignalR Service off-loads connection management and offers predictable consumption pricing. The business case shows lower TCO versus self-hosting, so the finance-minded leaders (CTO, IT Directors) see immediate ROI potential.

Denis Perevalov • 12 min read

Azure Functions in 2026

Executives charged with modernization, innovation, or cost control implement the leading FaaS platforms to stay competitive. The global serverless computing market is forecast to grow, driven by digital transformation pressures in large US enterprises. The serverless adoption on Azure also grows.

Denis Perevalov • 10 min read

Hire Dedicated .NET Developers

Hire dedicated .NET developers from Belitsoft to have your software product delivered in a timely manner. Our .NET programmers construct .NET business software for healthcare, eLearning, logistics, financial, telecommunications and more industries. Belitsoft's dedicated teams have expertise in building a wide range of web, cloud, IoT, and mobile applications.

Alexander Kom • 11 min read

NET Developer Skills to Look For in a .NET Developer Resume

NET Developer Skills to Consider When Hiring

Startup companies choose .NET for quick and cost-effective full-stack web and mobile development. Large enterprises select .NET for its ability to scale quickly and reduce delivery time. But the key to achieving these goals is the right people in your team. As the head of a .NET department, I have developed my own criteria and requirements that may serve as a benchmark for .NET developer interview questions helping you find .NET developers that will help our team successfully complete a project of any complexity. Use them too to achieve the expected result in your projects.

Denis Perevalov • 7 min read

.Net Core vs .NET Framework

Historically, .NET Core was merely one framework among the .NET family (.NET Framework, .NET Core, and Xamarin). However, with the release of its '5th version', Microsoft declared .NET Core as the primary 'implementation of .NET “development platform'. This suggests that companies evaluating their future should seriously consider .NET Core.

Denis Perevalov • 3 min read

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USA +1 (917) 410-57-57
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ASP.NET Core Development Company

ASP.NET Application Development Services

ASP.NET Migration Services

Web Application Development

API Development with ASP.NET Core

ASP.NET Core Cloud-Ready Development

Mobile Application Development

Portfolio

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