Alejandro Oceja

I'm a Senior Software Engineer (.NET/Azure) who runs LLM agents in production 24/7 on my own infrastructure — including an agent with real purchasing power behind a double confirmation gate, and a content engine that publishes for multiple brands autonomously. I don't just talk about AI integration; I operate it.

What I can help you with:
• Shipping AI features that don't break — LLM integrations (Claude, OpenAI), agents, RAG, tool use, MCP, prompt design, guardrails and evals. In .NET or Python.
• Senior .NET/C# — ASP.NET Core, EF Core, SQL Server, Azure, clean architecture, performance, code review. 7+ years, from legacy migrations to .NET 10 minimal APIs.
• Production debugging — the bug that only happens in prod: Windows services, Docker, queues, schedulers, flaky integrations.
• Mentoring & interview prep — code review habits, architecture decisions, mock interviews in English (Cambridge C2).

How I work: the first 15 minutes are scoping — you explain the problem, I tell you honestly whether I can fix it and roughly how long it will take. Clear write-up of what was done after every session. Based in Spain (CET), fast responses on European mornings and evenings. I also taught university students as a private tutor, so I'm comfortable teaching from fundamentals up to production architecture.