# Mario Ortega — AI Engineering Leader & Systems Architect

> Portfolio and technical publication site of Mario Ortega, specializing in enterprise multi-agent systems, Model Context Protocol (MCP), DSPy algorithmic prompt compilation, and production AI engineering leadership.

## Core Identity & Profile
- **Name**: Mario Ortega
- **Title**: AI Engineering Leader & Systems Architect
- **Experience**: 8+ years in enterprise software, modern data pipelines, and distributed architectures; 2.5+ years focused on production-grade Generative AI systems.
- **Location / Availability**: US-East / Available Globally for Strategic & Leadership Roles
- **LinkedIn**: https://www.linkedin.com/in/marioortegat/?locale=en-US
- **GitHub**: https://github.com/marioortegat

## Flagship Enterprise Case Studies
- [Production-Grade Document Intelligence & Extraction Engine](https://www.marioortega.dev/portfolio/document-intelligence): A 5-stage decoupled agentic mesh combining OCR, tiered SLM/LLM routing, DSPy prompt compilation, and PostgreSQL pgvector hybrid RAG. Achieved 78.4% token cost reduction, < 1.4s latency, and 99.2% extraction accuracy across enterprise documents.

## Technical Articles & Architecture Papers
- [How MCP Servers and Execution Gateways Actually Work in Production](https://www.marioortega.dev/blog/mcp-execution-gateway): Practical guide explaining why Anthropic's Model Context Protocol (MCP) alone is not enough for production AI agents. Outlines how to implement a Defensive Execution Gateway with Pydantic v2 schema validation, JWT/OIDC authentication, idempotency keys, and Human-in-the-Loop (HITL) criticality tiers to prevent duplicate financial transactions and prompt injection.

## Core Competencies & Technologies
- **AI Orchestration**: LangGraph, DSPy, Model Context Protocol (MCP), Langfuse, CrewAI, LlamaIndex.
- **Cloud & Microservices**: Google Cloud Platform (GCP), Azure AI Foundry, AWS ECS, Docker Containers, FastAPI.
- **Data & Vector Stores**: PostgreSQL, pgvector, Reciprocal Rank Fusion (RRF), BigQuery, Redis.
- **Leadership & Management**: Token Cost Governance, Technical Roadmaps, Team Mentorship, Enterprise Security & Compliance.