Juan Martin Canguillen

Backend Engineer focused on building scalable backend systems and AI-powered applications. Experienced with TypeScript, Node.js, NestJS, PostgreSQL, Redis, RabbitMQ, Docker, REST APIs, and distributed systems.

I also work with LLM-based systems, including AI agents, RAG pipelines, tool calling, MCP integrations, and orchestration of models such as OpenAI and Anthropic.

My focus is on designing reliable AI systems with explicit state management, tool boundaries, validation, observability, and deterministic backend workflows rather than treating LLMs as isolated chat interfaces.

Interested in agent orchestration, multi-agent systems, evaluation frameworks, long-context RAG, and production-grade AI infrastructure.