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.NET Development Services We Offer

Unithink Technologies delivers .NET solutions across the full Microsoft technology stack from ASP.NET web applications and REST APIs through to Windows desktop applications, microservices, and Azure-based cloud solutions. Our .NET development company covers every stage of the product lifecycle: architecture design, development, integration, testing, deployment, and long-term maintenance.

We build custom .NET applications designed around your specific business requirements not template solutions adapted to fit. The technology choices, database design, and application architecture are decided based on what your application needs to do, how many users it serves, and how it needs to integrate with your existing systems. Custom .NET development services from Unithink deliver production-ready applications built to enterprise standards.

Our ASP.NET development services cover full-featured web applications using ASP.NET Core MVC and Razor Pages built for performance, security, and maintainability. We use ASP.NET Core for new builds and ASP.NET Framework where existing systems require it. Every ASP.NET application we deliver follows the Microsoft recommended patterns for authentication, authorisation, data access, and error handling.

Well-designed .NET APIs are the backbone of enterprise systems that need to connect multiple applications, integrate third-party services, and support multiple client types web, mobile, and internal tooling from a single backend. Unithink builds .NET REST and GraphQL APIs with proper authentication, versioning, documentation, and the error handling that production systems require. We build APIs that are easy to consume, easy to extend, and easy to maintain.

Large organisations with Microsoft infrastructure Active Directory, SharePoint, Dynamics 365, and Azure benefit from .NET applications that integrate natively with their existing stack. Our Microsoft .NET development services cover enterprise application development across the full Microsoft ecosystem. We build applications that authenticate through Azure AD, store data in Azure SQL, and connect to Microsoft 365 services through the Graph API.

Monolithic .NET applications that have grown beyond what a single deployment can comfortably handle benefit from a microservices approach. We design and build .NET microservices architectures using ASP.NET Core, Docker, and Azure Kubernetes Service breaking large applications into independently deployable services that scale and fail independently. The migration from monolith to microservices is planned carefully to avoid disruption to running systems.

Older ASP.NET Framework applications still running on Windows Server represent significant technical and operational risk as support windows narrow. Our ASP.NET development services include structured modernisation programmes migrating from .NET Framework to .NET Core or .NET 8, from Web Forms to Razor Pages or Blazor, and from IIS hosting to containerised cloud deployment. We manage the migration in phases so your application remains operational throughout.

Hire a .NET developer from Unithink and get an engineer with real enterprise .NET experience working inside your development process. Our .NET developers bring expertise across ASP.NET Core, Entity Framework, Azure, SQL Server, and the Microsoft ecosystem your application depends on. You hire through Unithink Technologies as a company which means a single contract, structured delivery standards, and a replacement guarantee if your assigned developer is not the right fit.

Enterprise .NET applications run for years sometimes decades. They need ongoing maintenance as .NET versions update, security patches are released, business requirements change, and integrations evolve. Our .NET software development company provides long-term maintenance plans covering version upgrades, security patching, performance monitoring, and new feature development. We keep your .NET application secure, current, and performant over its full operational lifetime.

What We Actually Build With .NET

Practical use cases of React JS development services delivering real products across a wide range of business types. From startups building their first MVP to enterprises modernizing complex platforms, React enables scalable, high-performance applications tailored to diverse business needs.

Enterprise Resource Planning System
Custom .NET ERP application connecting finance, operations, and HR data across a multi-site business.

  • ASP.NET Core backend with SQL Server and Entity Framework data access
  • Azure AD authentication with role-based module access control
  • Real-time reporting dashboard connected to live operational data
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ASP.NET Customer Portal
Secure ASP.NET development services delivering a client-facing portal for a professional services firm.

  • Document upload, review, and approval workflows in ASP.NET Core
  • Azure Blob Storage integration for secure document management
  • Two-factor authentication and audit logging throughout
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.NET REST API Platform
Scalable .NET API serving web, mobile, and third-party integrations from a single backend.

  • ASP.NET Core Web API with JWT authentication and API versioning
  • Swagger documentation and integration testing suite
  • Azure deployment with auto-scaling and Application Insights monitoring
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Legacy .NET Migration
Structured migration from an ageing ASP.NET Framework application to modern .NET 8.

  • Assessment of existing codebase with risk and effort mapping
  • Phased migration from .NET Framework to .NET 8 with parallel running
  • Infrastructure modernisation from on-premise IIS to Azure container deployment
View Service Details
[ How we work ]

How We Deliver Your .NET Project

Every .NET development services engagement at Unithink Technologies follows a structured delivery process. Architecture decisions, technology choices, and integration design are made and agreed before the build begins not discovered during a sprint when changing direction is expensive.

[ Why Choose Us ]

Why Choose Unithink for .NET Development Services?

Enterprise .NET applications are long-lived systems. The architectural decisions made at the start shape how the application performs, how difficult it is to maintain, and how expensive it is to extend five years from now. Our .NET development company brings the depth of experience those decisions require and takes full accountability for the applications we build. We own the outcome, not just the hours.

Deep Ecosystem

Our .NET development services are grounded in genuine Microsoft ecosystem expertise not just ASP.NET, but Azure, Active Directory, SQL Server, Entity Framework, and the Microsoft Graph API. We build .NET applications that integrate correctly with your Microsoft infrastructure from day one. That depth means fewer integration surprises and more reliable systems in production.

Production-First

Every .NET application we build is engineered for production from the first sprint. Error handling, logging, security hardening, database query optimisation, and deployment pipeline configuration are standard components of every .NET development services engagement. An application that passes testing but performs poorly under production load is not a finished product. We build to production standards throughout.

Long-Term Capability

We build .NET applications we can maintain. Every codebase we deliver is documented, consistently structured, and built with long-term maintainability as a design constraint. When you need a feature added two years after the initial build, the codebase is in a state where that is straightforward not a structural challenge requiring a partial rebuild. Real deployed systems, not curated portfolio slides.

Security-First

Enterprise .NET applications handle sensitive business data, customer records, and financial transactions. Security is a first-class concern in every .NET development services engagement authentication and authorisation design, SQL injection prevention, API security, dependency vulnerability management, and penetration testing where required. We build secure applications, and we document the security decisions for your compliance teams.

Experienced .NET Team

Hire .NET developers from Unithink and get engineers with production enterprise .NET experience not junior developers who completed an online certification. Our .NET software development company has delivered applications across finance, healthcare, manufacturing, and professional services. That domain exposure shapes how we approach data modelling, integration design, and compliance requirements in each sector.

One Team. Every Layer.

From business logic to backend infrastructure to the AI model itself, we handle the full stack. You do not need to coordinate between a strategist, a developer, and an AI developer. We are all three and you only need one conversation.

[ Our Clients]

Trusted By Growing Businesses & Global Teams

Global businesses trust Unithink Technologies when it matters most to build digital products, automate their operations, and deploy intelligent AI systems that drive real, measurable growth.

Industries Where Our .NET Development Services We Deliver

Unithink Technologies has delivered .NET development services for businesses across multiple sectors. The .NET ecosystem’s enterprise strengths structured architecture, Microsoft integration, long-term support align well with the requirements of these industries.

Financial Services

Financial services firms use our .NET development services to build trading systems, portfolio management tools, client reporting applications, and regulatory compliance platforms. Our .NET development company understands the accuracy, audit trail, and data governance requirements of financial applications. We build .NET systems that handle financial data correctly under every operational condition, not just the expected ones.

Healthcare & Life Sciences

Healthcare organisations use our ASP.NET development services to build patient management systems, clinical data portals, and administrative workflow applications. We have delivered .NET applications that integrate with HL7 FHIR APIs, DICOM imaging systems, and electronic health record platforms. Compliance, data accuracy, and access control are built into the architecture from the first design session.

Manufacturing & Operations

Manufacturing businesses use our custom .NET development services to build production management systems, inventory control applications, and operational reporting tools. Our .NET software development company has delivered factory floor applications connecting to SCADA systems, ERP platforms, and IoT data sources. We build .NET applications that work in real industrial environments, not just in office networks.

Professional Services

Law firms, consultancies, and accountancy practices use our Microsoft .NET development services to build client management systems, document workflow tools, and time and billing applications. We deliver ASP.NET applications that integrate with Microsoft 365, SharePoint, and Dynamics 365 — the platforms professional services organisations already depend on. Your .NET application fits into your existing Microsoft environment, not beside it.

Government & Public Sector

Government agencies and public sector organisations use our .NET development company services to build citizen-facing portals, internal workflow applications, and data management systems. .NET’s long support lifecycle, Microsoft security credentials, and established procurement pathway make it a natural choice for public sector development. We deliver compliant, accessible, well-documented .NET applications that meet the standards public sector IT governance requires.

Logistics & Supply Chain

Logistics businesses use our ASP.NET development services to build route management systems, shipment tracking platforms, and warehouse management applications. Our .NET development services for logistics clients cover real-time data integration with carrier APIs, GPS tracking systems, and ERP backends — delivering applications that keep logistics teams informed and operations running without manual data coordination at each step.

Proof Is Built Into Everything We Ship

As an Artificial Intelligence development company, we measure success the same way our clients do through revenue growth, time saved, and systems that continue delivering value long after launch. Every solution we build is designed to create measurable, lasting impact.

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Enterprise AI Systems Deployed
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Industries Served
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ROI-First Delivery

Technologies & Platforms We Work With

We work with the best technologies and tools across every layer of the stack, carefully selected for performance, reliability, and real business impact.

HTML
CSS
React
Js
Next.js
AngularJS
Node.Js
Python
Logomark
Laravel
.Net
PHP
WordPress-colorCreated with Sketch.
Wordpress
Drupal
Webflow
Framer
N8N
Make
Make (Integromat)
Zapier
Relevance AI
VAPI
Power Automate
Selenium
Langchain
LangGraph
Langgraph
CrewAI
CrewAI
Multie agent
MySQL
PostgreSQL
Redis
Pinecone Icon Streamline Icon: https://streamlinehq.com
Pinecone
Supabase Icon Streamline Icon: https://streamlinehq.com
Supabase
Hostinger
AWS
Google Cloud
Azure
testimonials

Hear From Our Clients

[Our Portfolio]

Projects That Deliver Real Results

All AI Agents Automation Custom AI Finance Food & Subscription HR & Staffing Web Development

Still have questions?

Our expert team is here to help you find the right AI development solution for your business.

FAQs

Frequently Asked Questions

What is .NET and what types of applications can it build?
.NET is Microsoft's open-source, cross-platform application framework — now running on Windows, Linux, and macOS under .NET 5 and later versions. It supports web applications (ASP.NET Core), desktop applications (WinForms, WPF, MAUI), mobile applications (MAUI), cloud services, microservices, and background worker services. C# is the primary language used in .NET development, with F# and Visual Basic also supported. Our .NET development services use .NET for enterprise web applications, APIs, and backend services where the Microsoft ecosystem's integration advantages, long-term support, and enterprise tooling are valuable.
What is the difference between .NET Framework and .NET Core / .NET 8?
.NET Framework is the original Windows-only Microsoft application framework, first released in 2002. .NET Core was a cross-platform, open-source rewrite launched in 2016. From .NET 5 onward, Microsoft unified the two into a single .NET platform. .NET Framework is now in maintenance mode — receiving security patches but no new features. Our .NET development company recommends building on current .NET (currently .NET 8, with .NET 9 available) for all new development, and we manage structured migrations from legacy .NET Framework codebases to current .NET versions.
How long does a .NET development project take?
A focused ASP.NET web application or REST API takes 5–10 weeks through our .NET development services. A custom enterprise application with complex business logic, multiple integrations, and a data-intensive backend takes 12–24 weeks. Legacy migration projects are scoped individually after assessment. We provide a precise timeline after reviewing your requirements and all .NET development services engagements follow structured milestone delivery.
Can I hire a dedicated .NET developer from Unithink?
Yes. Hire a .NET developer from Unithink and get an engineer with real enterprise .NET experience embedded in your development process. Our dedicated .NET developers join your sprint cycles, work in your project management tools, and deliver to your coding standards. You engage Unithink Technologies as a company — with a single contract, a replacement guarantee, and full accountability for the output your assigned .NET developer produces.
Can you work with our existing .NET codebase?
Yes. We regularly extend, refactor, and improve existing .NET codebases — adding new features, improving performance, resolving accumulated technical debt, and migrating to newer .NET versions. We audit the existing codebase first to understand its structure, identify the areas requiring the most attention, and agree a work plan before making any changes. Your existing team is involved in that audit process from the start.
What databases do you use with .NET applications
Our .NET development services work with SQL Server as the primary relational database for enterprise applications, with Entity Framework Core as the ORM. We also use PostgreSQL, MySQL, and Azure SQL depending on infrastructure requirements. For applications that need document storage, we integrate Azure Cosmos DB, MongoDB, or Redis. The database choice is made based on your data model, query patterns, and infrastructure environment — not on a default preference.
How do you handle security in .NET applications?
Security in .NET development services is not a phase at the end of the build — it is designed in from the architecture stage. We implement ASP.NET Core Identity or Azure AD authentication, role-based authorisation, HTTPS enforcement, SQL injection prevention through parameterised queries and Entity Framework, input validation, and proper secret management using Azure Key Vault or environment-based configuration. Our .NET development company documents every security decision for your compliance and audit teams.
Do you provide .NET maintenance after the application launches?
Yes. Enterprise .NET applications run for years and need continuous maintenance as .NET versions release, security patches arrive, business requirements evolve, and integrations change. Our .NET software development company provides maintenance plans covering version upgrades, security patching, performance monitoring, and new feature development. The same team that built your application handles the maintenance — no context lost between a build team and a support team.

Ready to Build a .NET Application That Performs and Lasts?

Book a free discovery call with Unithink Technologies. Whether you need .NET development services for a new enterprise application, an experienced .NET development company to take over and improve an existing codebase, or to hire .NET developers for an ongoing engagement we will review your requirements and give you a clear, honest plan for what to build and how long it takes.