Louizos Alexandros L.

Need AI agents, RAG, or workflow automation that work reliably in production—not just another demo? I design, build, deploy, and evaluate enterprise AI systems, combining hands-on engineering with AI strategy and measurable business outcomes. I'm a Top Rated Plus freelancer with $100K+ earned on Upwork, over a decade of applied AI experience, and an MD/MSc background. I've delivered AI solutions for healthcare, insurance, and Fortune 500 organizations. WHAT I CAN DELIVER • AI Agents & Multi-Agent Systems: Agent orchestration, tool integrations, human approval workflows, custom Agentic Harnesses and production deployment. • RAG & Enterprise Knowledge Systems: Secure retrieval from private data, knowledge graphs (Graph RAG), grounded answers, and evaluation pipelines and custom evaluation benchmarks. • AI Automation & Integration: Python, APIs, AWS, data pipelines, and end-to-end business process automation. • LLM Evaluation & Reliability: Human evaluation, regression testing, drift monitoring, failure analysis, and token/cost optimization. • AI Strategy & Governance: AI roadmaps, architecture reviews, build-vs-buy assessments, risk management, and deployment planning. SELECTED PROJECT RESULTS • Led the engineering and evaluation of an enterprise clinical-review AI system, establishing blinded expert evaluations, quality gates, and model-cost monitoring. • Developed a patented fraud-detection solution that identified 63% more fraud while reducing false positives by 80%. • Built an insurance computer-vision system that reduced vehicle-damage estimation time from two days to two minutes for eligible claims. WHY WORK WITH ME? I combine AI architecture and executive-level strategy with hands-on implementation. My experience spans building AI companies, patented machine-learning systems, and production applications in complex, regulated industries. I focus on measurable performance, reliability, maintainability, and practical business value—not just demonstrations. Tell me what you're trying to automate, which systems need to connect, and what success looks like. I'll help define a practical architecture and first milestone.