ASP.NET WebForms to .NET Core migration, SQL Server optimisation and legacy system maintenance. 25+ years of experience, available remotely for Chile, Europe, the USA and France.
Legacy ASP.NET WebForms and .NET Framework: slow, insecure, hard to maintain and almost impossible to hire for. Every month, the risk and the cost grow.
Few developers want to touch old WebForms or .NET Framework.
Unsupported frameworks, unpatched vulnerabilities and obsolete dependencies.
Poor performance, expensive hosting and every change takes too long.
No one dares modernise for fear of stopping production.
Incremental migration of ASP.NET WebForms and .NET Framework to modern .NET Core, preserving your business logic.
Query tuning, indexes, stored procedures, partitioning and large-volume handling.
I take over and maintain existing .NET applications, even without the original developer.
Diagnosis of bottlenecks, security and technical debt, with a clear action plan.
REST APIs, payment gateways, external services and AI integration (OpenAI, Claude).
Scalable .NET Core architecture to handle large volumes with minimal load times.
Decades building and migrating .NET applications in real enterprise projects.
Incremental approach: your system keeps running while it's modernised, module by module.
Fluent in Spanish, English and French. Available for Chile, Europe, the USA and France.
Registered French sole trader (SIRET). Remote work or freelance contract, fully invoiced.
I analyse your code, database and architecture, and identify risks and opportunities.
You get a clear, staged migration plan with timelines and a fixed price.
I modernise module by module, with testing, without stopping your production.
Maintenance, monitoring and continuous improvements after delivery.
Let's discuss how I can help. Available in Spanish, English and French.