Our .NET (C#) Development Services
End-to-end .NET capability from greenfield ASP.NET Core builds to legacy migrations, C# API development, and Azure cloud deployment.
Encrypted InfoWeb delivers expert .NET development services custom ASP.NET Core applications, C# APIs, enterprise portals, and cloud-based .NET solutions engineered for performance, security, and maintainability. Serving businesses across the United States, United Kingdom, Germany, Australia, and the UAE.
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10+ Years
Experience in digital delivery
200+ Projects
Across web, apps & software
Global Client Coverage
Global delivery & collaboration
NDA Ready
Confidential, IP-aware workflows
.NET development involves building web applications, APIs, and enterprise software using Microsoft's .NET platform and C# programming language. ASP.NET Core enables high-performance, cross-platform web and API development, while the broader .NET ecosystem supports enterprise portals, SaaS platforms, Windows services, and cloud-based business applications deployed on Azure or AWS.
Most clients arrive with at least one of these. If any look familiar, you are in the right place.
Targeting Windows-only .NET Framework 4.x, untyped Entity Framework queries, and zero automated tests. Every feature request carries unacceptable risk. A structured migration to .NET 8 restores team confidence and opens cross-platform deployment options.
A single deployable unit means every release touches everything, every bug can affect all customers, and scaling one bottleneck requires scaling the whole application. ASP.NET Core microservices or modular monolith patterns address this without a wholesale rewrite.
Frontend teams guess at response structures. Third-party integrators break on every release. No OpenAPI spec, no versioning strategy, no stable contract. We rebuild the API layer with Swagger documentation and a versioning approach that protects downstream consumers.
Business logic scattered across stored procedures, fat controllers, and God classes that have accumulated years of requirements without structural review. Domain-driven design applied to an ASP.NET Core rebuild gives business logic a proper, testable home.
An on-premises Windows Server deployment limits scalability, increases infrastructure management overhead, and creates business continuity risk. Azure-hosted ASP.NET Core applications with managed services replace this infrastructure cost with usage-based pricing and automatic scaling.
Hiring a senior C# developer with ASP.NET Core, Entity Framework, and Azure experience takes months in any market. Our dedicated .NET developers integrate with your team within days under NDA, on your tooling, at the expertise level your project demands.
Here is who gets the most value from a dedicated Microsoft .NET development company.
.NET's strong typing, mature tooling, and Microsoft ecosystem integration make it the natural choice for enterprise software ERP modules, internal portals, workflow automation, and complex data management systems that your organisation will depend on for years.
ASP.NET Core provides the performance and scalability SaaS platforms need with multi-tenancy patterns, Stripe billing integration, role-based access control, and the tooling for a team of 30 engineers to work in a single codebase without stepping on each other.
If your organisation runs a business-critical .NET Framework application that is blocking cloud adoption or modern feature delivery, a structured migration to .NET 8 and ASP.NET Core unlocks cross-platform deployment, improved performance, and access to the modern .NET ecosystem.
ASP.NET Core's Minimal API model and controller-based patterns both deliver high-throughput, well-structured REST APIs with built-in dependency injection, middleware pipelines, and OpenAPI support suitable for any client that needs a reliable, documented integration layer.
End-to-end .NET capability from greenfield ASP.NET Core builds to legacy migrations, C# API development, and Azure cloud deployment.
We build bespoke web applications and portals on ASP.NET Core structured around your domain model, your business rules, and your deployment requirements. Clean architecture patterns, dependency injection, CQRS where warranted, and xUnit test coverage for business logic. The result is a codebase your engineering team can extend without archaeology.
We build versioned, Swagger-documented REST APIs in ASP.NET Core with JWT authentication, consistent response models, input validation via FluentValidation, and integration test coverage. Built for frontend teams, mobile clients, and third-party integrators to depend on across multiple product iterations. See our full web development services for end-to-end delivery.
We design and deploy ASP.NET Core applications on Azure using App Service, Azure Functions for serverless workloads, Azure Service Bus for reliable messaging, Azure SQL or Cosmos DB for data, and Azure DevOps or GitHub Actions for CI/CD. Every cloud architecture decision is driven by your cost, performance, and compliance requirements not default configurations.
We migrate legacy .NET Framework applications to .NET 8 covering codebase audit, dependency compatibility analysis, phased migration planning, and post-migration performance profiling. Clients end up with a cross-platform, cloud-deployable application on the current LTS .NET release, with test coverage validating functional parity throughout the migration. No big-bang rewrites. Incremental, verifiable progress at each stage.
Complex business rules, multi-role user management, workflow automation, integrations with ERP and CRM systems, and reporting pipelines enterprise .NET applications require architectural decisions that generic application frameworks do not make for you. We build enterprise .NET software with domain-driven design, CQRS/ES where appropriate, and the audit logging and data governance that enterprise compliance requirements demand. Clients across the UK, Germany, and UAE rely on us for this work.
Our dedicated C# and ASP.NET Core developers integrate directly with your team on your Git workflow, your Jira or Linear board, and your sprint cadence with direct developer access from day one. No account manager in the middle. Engagements run on monthly retainer terms. Clients across the US, UK, and Australia access senior .NET expertise within days of a signed NDA and agreement.
A structured, milestone-driven process from discovery to post-launch support with full transparency at every step.
Structured discovery covering business domain requirements, existing infrastructure, database design, third-party integrations, and Azure deployment targets. NDA signed before any discussion begins. Deliverable: domain model, API contract outline, and deployment architecture confirmed before the proposal is issued.
For full-stack projects, our designers produce Figma wireframes and interface designs before development begins. See our UI/UX design services for detail. In parallel, we define the OpenAPI contract endpoints, request/response schemas, authentication flows, and versioning strategy so frontend teams start with a stable integration target.
Two-week sprints on a shared staging environment. Domain models, ASP.NET Core controllers, EF Core migrations, Azure service integrations, authentication, background jobs, and third-party API connections all delivered in working increments deployed to staging at the end of every sprint. C# and xUnit are standard throughout.
xUnit unit and integration tests covering domain logic and API endpoints. OWASP .NET security review. Performance profiling with Application Insights. Swagger contract validation. Cross-browser and cross-device testing for frontend layers. Nothing ships to production without a cleared QA checklist and documented performance baseline.
Deployed to Azure (App Service, Functions, or AKS) or your preferred infrastructure via Azure DevOps or GitHub Actions CI/CD pipelines. Application Insights monitoring and Sentry error tracking configured before go-live. Full technical documentation and knowledge transfer standard. Post-launch support retainers available on monthly terms.
We are technology-agnostic within the Microsoft ecosystem every tool is chosen for your project's specific performance, compliance, and maintainability requirements.
200+ businesses across the US, UK, Germany, Australia, and UAE have trusted Encrypted InfoWeb. Here is what consistently sets us apart.
We have shipped production ASP.NET applications across multiple major .NET versions. Our developers understand the .NET runtime, Entity Framework query optimisation, dependency injection patterns, and the operational realities of enterprise .NET in production not just framework documentation.
We deliver complete products pairing .NET backends with UI/UX design and frontend development for end-to-end delivery under one contract, one timeline, and one accountable team.
Database schema design, service boundary decisions, caching strategy, and Azure deployment architecture are made at the discovery phase not retrofitted after the first performance incident at growth stage. Our clients scale on codebases we built without structural rewrites.
xUnit test suites covering business logic, OWASP .NET security review, Application Insights monitoring, and performance profiling before production launch are standard deliverables on every engagement not optional extras charged as separate line items.
Consistent senior-level .NET engineering for clients across the US, UK, Germany, Australia, and the UAE. English-first technical documentation, direct developer communication, and a track record of milestone delivery that international clients can plan around.
Two-week sprints, working software on staging at the end of every cycle, and direct developer access without a project manager relay. You always know what has shipped, what is next, and what the blockers are before they affect your delivery date.
.NET's enterprise heritage makes it particularly well-suited to regulated, data-intensive, and complex business domains. Here is how we apply it by sector.
ASP.NET Core gives startups enterprise-grade performance from day one with a codebase that grows cleanly to a 30-engineer team without structural compromise.
Multi-tenancy, Stripe billing, role-based access, and feature gating all standard patterns in .NET SaaS backends. ASP.NET Core handles SaaS-scale concurrency without the infrastructure overhead of synchronous alternatives.
HIPAA and GDPR-aware .NET applications for clinical portals, patient data management, and medical device integrations with encryption, strict RBAC, and audit logging in the architecture from the start.
Custom .NET ecommerce backends for complex B2B scenarios tiered pricing, multi-warehouse fulfilment, ERP integration where standard platforms cannot accommodate the business model.
Internal portals, ERP modules, workflow automation, and enterprise API layers for large organisations across the US, UK, and Germany with Azure AD SSO, RBAC, and audit compliance built in.
Consistent, senior-level .NET development for clients worldwide with the IP protection and communication standards that international engagements require.
Serving US enterprises, SaaS companies, and startups across New York, San Francisco, Austin, and Chicago with fast NDA onboarding, direct developer communication, and .NET deliverables that hit commercial targets on schedule.
Full GMT timezone overlap, GDPR-aware .NET architecture, and the professional delivery standard British B2B clients expect. Direct engagement with CTOs and technical leads across London, Manchester, Edinburgh, and Birmingham.
Technical precision, DSGVO-compliant data handling, and meticulous documentation for Mittelstand businesses, enterprise technology teams, and digital agencies across Berlin, Munich, Frankfurt, and Hamburg. .
Async-first workflows and partial AEST timezone overlap for clients across Sydney, Melbourne, and Brisbane structured, direct, and delivered on schedule without the delays common in other offshore engagements.
.NET platforms with Azure AD integration, multi-language support, and enterprise security standards for clients across Dubai, Abu Dhabi, and the broader GCC with the compliance and governance controls regional enterprises require.
Whether you are building a new ASP.NET Core application, migrating from .NET Framework, or embedding dedicated C# expertise into your team we are ready to start properly.
