.NET Framework lock-in
System.Web dependencies, COM interop and Windows-only libraries block migration to .NET 8. We assess compatibility early and design strangler-fig migration paths module by module.
.NET 8 Azure SOC 2-ready Enterprise
.NET Development Services for Regulated US and EU Enterprises
.NET 8 underpins our enterprise engagements — REHAU's B2B portal bridging ASP.NET Core to SAP, Signatory Pro's e-signature CRM with GDPR audit trails, ANT's B2B admin console with multi-tenant RBAC. Senior C# architects, Azure and AWS dual-cloud, SOC 2-aligned delivery.
We deliver .NET 8 engineering for enterprise product teams building API platforms, SaaS portals and B2B workspaces; organisations modernising .NET Framework 4.x systems to .NET 8 using strangler-fig migrations; regulated industries — fintech, healthtech, legaltech — where SOC 2-aligned controls, GDPR audit trails and enterprise SSO are delivery requirements; and teams integrating .NET with SAP, Dynamics 365, SharePoint and Power Platform. Azure and AWS — both supported with equal depth.
Challenges
Industry challenges we solve
EF Core query performance
Lazy loading N+1 and missing AsNoTracking on read-only queries degrade performance at scale. We audit with EF Core logging, add explicit includes and switch read paths to Dapper.
SAP and Dynamics integration drift
ERP APIs change with upgrade cycles and break .NET integrations silently. We wrap integrations in anti-corruption layers with contract tests that alert before an ERP upgrade hits production.
Startup time on large monoliths
Large ASP.NET Core applications with many DI registrations have 15+ second cold starts on Lambda and Azure Functions. We profile startup with dotnet-trace and split into appropriately scoped modules.
Distributed tracing across stacks
Async message flows across NestJS front-ends and .NET backends lose trace context at the boundary. We propagate OpenTelemetry W3C Trace Context across all service boundaries.
License and support cost management
Visual Studio, SQL Server and third-party .NET library costs accumulate invisibly. We baseline the licence inventory and recommend open-source alternatives where they meet functional requirements.
Solutions
Solutions we build
ASP.NET Core APIs
REST and gRPC APIs with OpenAPI documentation, OAuth2/OIDC auth, Polly resilience and OpenTelemetry observability.
.NET Framework to .NET 8 modernisation
Strangler-fig migration with module-by-module cutover, Playwright regression coverage and zero production downtime.
Enterprise integration
SAP RFC/REST, Dynamics Dataverse, SharePoint Graph API and Power Platform SDK — wrapped in anti-corruption layers.
Blazor and Razor Pages portals
Internal admin portals and B2B workspaces — Blazor Server for low-latency interactive UIs, Razor Pages for simpler CRUD workflows.
Background services
IHostedService, Hangfire, MassTransit — scheduled jobs, queue consumers and event-driven processing with retry and dead-letter handling.
Azure-native deployments
AKS, Azure App Service, Azure Functions, Azure Service Bus and Key Vault — Terraform-managed, GitOps-deployed.
Stack
Technology stack
.NET 8, ASP.NET Core, EF Core 8, Dapper, MediatR, FluentValidation, MassTransit, Polly, Serilog, OpenTelemetry, Azure SDK, SignalR, Hangfire.
Compliance
Compliance & regulations
GDPR-aligned · SOC 2-capable · HIPAA-capable · CCPA-acknowledged
EU
- GDPR — audit trail, DSR automation, data residency.
- DORA — ICT resilience for fintech workloads.
- EAA — accessibility compliance for Blazor UIs.
- NIS2 — incident reporting and supply-chain security controls.
US
- SOC 2 — structured audit logging, access control evidence.
- HIPAA — encryption at rest and in transit, audit logging.
- GLBA — financial data safeguards and customer information privacy.
- CCPA — consumer privacy rights and opt-out handling.
Shared: OWASP Top 10, SBOM via NuGet audit, secrets in Key Vault / Secrets Manager.
Cases
Selected .NET case studies
Manufacturing · E-commerce
REHAU
B2B e-commerce and product configurator for a global polymer manufacturer with multi-region pricing, stock and dealer workflows.
LegalTech · Mobile · CRM
Signatory Pro
Native iOS and Android e-signature clients with a Symfony + React CRM for a cross-border law firm — KYC onboarding and a defensible evidence trail for US & EU matters.
PropTech · Marketplace
ANT
Property marketplace web platform with listing CMS, search and B2B admin console for US and EU operators.
Why YuSMP
Why .NET teams choose YuSMP
Senior C# architects
Engineers who have designed EF Core domain models, MediatR pipelines, MassTransit topologies and .NET Framework → .NET 8 migration paths from real enterprise engagements.
Azure and AWS dual-cloud
AKS, Azure App Service and Key Vault on Azure; EKS, ECS and Secrets Manager on AWS — same Terraform toolchain, same GitOps pipeline.
SOC 2-aligned delivery
Serilog structured event logs, audit trail schemas and Key Vault secret rotation wired into every enterprise .NET engagement from day one.
FAQ
.NET FAQ
Do you support .NET Framework to .NET 8 migrations?
Yes. We assess compatibility using the .NET Upgrade Assistant, identify breaking changes in System.Web dependencies, COM interop and third-party library compatibility, then migrate module by module using the strangler-fig pattern. Typical migrations take 8–24 weeks depending on codebase size and legacy dependency surface.
Minimal API or MVC controllers for new projects?
Minimal APIs for microservices and lightweight API endpoints — less ceremony, better performance, simpler testing. MVC Controllers where you need action filters, complex model binding or a team already familiar with the convention. We document the choice in an ADR.
How do you integrate .NET with SAP or Dynamics?
SAP: RFC/BAPI calls via SAP .NET Connector or REST APIs via SAP Business Technology Platform integration. Dynamics/Power Platform: Microsoft Graph API, Dataverse Web API and the official Power Platform SDK. We wrap integrations in anti-corruption layers to isolate business logic from ERP schema changes.
Entity Framework Core vs Dapper — which do you use?
EF Core for new projects with complex domain models, change tracking and migrations. Dapper for performance-critical read paths, reporting queries and existing databases where EF's conventions fight the schema. Many production codebases use both: EF for writes, Dapper for reads.
How do you implement .NET background services?
IHostedService or BackgroundService for simple scheduled and queue-consumer scenarios. Hangfire or Quartz.NET for distributed job scheduling with retry, dashboards and persistent job state. MassTransit with Azure Service Bus or RabbitMQ for event-driven background processing at scale.
How do you approach .NET security and SOC 2 readiness?
ASP.NET Core's built-in middleware for authentication (OAuth2/OIDC via IdentityModel or Microsoft Identity Web), authorisation (policy-based), CORS, CSRF and rate limiting. Secrets in Azure Key Vault or AWS Secrets Manager via the .NET configuration provider. Structured audit logging via Serilog with event IDs that map to SOC 2 control evidence.
Modernise your .NET estate with senior engineers
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