Juan Andres Herrera

I’m a Fullstack Developer and AI Engineer with 2.5+ years of experience building scalable backend systems, data-driven AI tools, and modern web interfaces. My work is backend-first: I focus on designing strong APIs, integrating LLM features responsibly, and delivering measurable improvements in performance.

At Logika Evolución Empresarial, I optimized critical Java/Spring Boot endpoints, reducing response times from over 5 seconds to under 500ms (90%+ improvement). I also developed custom MCP (Model Context Protocol) servers integrated with client databases and Azure logs, enabling AI-powered reporting and automated production error diagnostics. In parallel, I built a multi-tenant LMS supporting SCORM 1.2 and SCORM 2004, and implemented real-time notifications with WebSockets to improve engagement and responsiveness.

I’ve built full product experiences across teams: with React and TypeScript under a BFF (Backend for Frontend) architecture, I ensured clean separation of concerns and optimized API consumption. Earlier at SemiIngeSoft, I co-developed a mental health support application, including a high-risk alert system that combined rule-based triggers with real-time monitoring. I’m comfortable leading migrations to maintainable architectures, managing SQL Server/PostgreSQL, and deploying on Azure/AWS with CI/CD, unit testing, and automated deployments.