.NET Web App Development Services

If you're seeking a dependable .NET development partner for e-commerce platforms, B2B portals, SaaS applications or enterprise dashboards, Atharva ITS delivers scalable ASP.NET Core applications, secure APIs and modernized systems built for performance, stability and long-term business growth.

.NET Web App Development Services

Why Choose Our .NET Web App Development Services?

Enterprise-grade reliability: We build .NET applications using proven patterns like SOLID principles, dependency injection and structured error handling to ensure uptime and predictable behavior under load.

High performance and scalability: Our applications leverage async/await patterns, efficient database queries, caching (Redis, in-memory), and horizontal scaling on Azure/AWS to handle high traffic and concurrent users.

Strong security foundation: We implement authentication (OAuth, JWT), authorization (role/policy-based), input validation, SQL injection prevention and secrets management (Azure Key Vault, AWS Secrets Manager) by default.

Long-term maintainability: Clean architecture, comprehensive unit/integration tests, API documentation (Swagger/OpenAPI) and CI/CD pipelines ensure your application evolves without accumulating technical debt.

.NET Web App Development Services We Offer

01

Custom Asp.Net Core Web Application Development

We build tailored ASP.NET Core applications that align with your business workflows, from internal dashboards to customer-facing platforms, with a focus on performance and stability.

02

.Net Api & Backend Development

We build production-ready RESTful APIs and GraphQL endpoints using ASP.NET Core, with authentication (JWT, OAuth), rate limiting, versioning and Swagger/OpenAPI documentation. Our APIs integrate with payment gateways, CRM systems, e-commerce platforms (Shopify, Amazon SP API), ERPs and third-party SaaS tools.

03

Legacy .Net Modernization & Migration

We upgrade older .NET Framework applications to modern .NET and ASP.NET Core, improving performance, security, and maintainability without disrupting operations.

Build Your .NET Web Application with Confidence

Ready to start a custom .NET project or modernize a legacy application? Schedule a free 15-minute consultation to discuss your requirements, tech stack and timeline—no commitment required.

Frequently Asked Questions

Find answers to common questions about our .NET Web App Development Services

Is .NET suitable for modern web applications? -

Yes. Modern .NET and ASP.NET Core are cross-platform, high-performance, and well-suited for building modern, cloud-ready web applications.

Can .NET applications scale for high traffic? -

Yes. With proper architecture, caching, and cloud deployment, .NET applications scale efficiently for high-traffic and enterprise use cases.

Do you build cloud-ready .NET applications? -

Yes. We design .NET applications for cloud environments, including Azure and AWS, with support for containers, CI/CD, and scalable infrastructure.

Can you integrate .NET apps with existing systems? -

Yes. We specialize in integrating .NET applications with databases, third-party APIs, legacy systems, and enterprise tools.

What versions of .NET do you work with? -

We specialize in modern .NET (formerly .NET Core) -- currently .NET 8 and .NET 9 and also maintain and upgrade legacy .NET Framework 4.x applications to modern .NET.

How long does it take to build a custom .NET web application? -

Timelines vary by scope. A typical MVP with core features takes 8-12 weeks. Enterprise applications with complex integrations may take 4-6 months. We provide detailed estimates after a discovery phase.

Do you offer post-launch support and maintenance? -

Yes. We provide 30 days of complimentary post-launch support for bug fixes and deployment troubleshooting. Extended maintenance, feature development and DevOps support are available under separate agreements.