Senior .NET Backend Engineer
I build, integrate, and modernize backend systems where the business logic matters.
15+ years in C#/.NET, working across logistics, insurance, payroll, banking, and public-sector environments.
Profile
A foot in each era of .NET
I work with equal fluency in modern .NET —REST APIs, integrations, services— and in the legacy platforms (.NET Framework, Visual Basic, Visual FoxPro) that many organizations still run in production.
Most teams cover one side or the other. The value is in covering both without losing the business logic that holds the system together.
About meDomains
Where the rules are strict
Backend systems for sectors where an error isn’t an inconvenience — it’s an incident.
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Logistics
Warehouse and inventory systems where the count has to be right.
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Insurance
Policy and claims systems with strict business rules.
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Payroll
Calculation engines where accuracy is not optional.
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Banking
Systems that have to reconcile, every time.
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Public sector
Institutions running critical, long-lived systems.
Approach
Most developers master one side. I work in both.
Modern
- Current .NET
- ASP.NET
- REST APIs
- Systems integration
- SQL Server
What gets built and integrated today.
Legacy
- .NET Framework
- Visual Basic
- Visual FoxPro
- Windows services & processes
What many of those same organizations still run in production.
Capabilities
What I do with those systems
Understand
Read the business logic before touching the code that enforces it.
Build & integrate
APIs, services, and integrations between systems that were never designed to talk to each other.
Modernize in place
Migrate without rewriting from scratch or cutting over overnight.
Own the outcome
In business-critical systems, reliability is part of the job.
Available for independent consulting, contract work, and senior .NET backend opportunities.
Spain, Europe, the United States, and Latin America.