Open to opportunities

PANAGIOTIS MAVROTHALASSITIS

@pmavrothalassitis

AI/ML Engineer with 5+ years building production LLM and agentic systems, from RAG-based root cause analysis to reinforcement learning.

Greece

Message

What I'm looking for

I'm looking for a fully remote AI/ML engineering role where I can build production LLM and agentic systems, ideally on a team that values measurable results and good evaluation practices. I'm based in Greece and open to contractor or EOR arrangements with US and international companies.

AI/ML Engineer with 5+ years of experience building production LLM and full-stack systems, from GenAI-powered analytics to reinforcement learning agents. At Teleperformance Greece, I develop LLM-driven platforms for root cause analysis and automated quality monitoring that cover 100% of interaction volume at around 85% accuracy, using RAG, pgvector and agentic workflows. Previously, as a Research and Software Engineer at the University of Patras, I designed multi-agent and deep reinforcement learning solutions for industrial scheduling, delivering 10-50% production improvements across EU-funded and client projects. My day-to-day stack is Python, FastAPI, PostgreSQL and LangChain, and I enjoy turning complex AI research into reliable, measurable business tools.

Experience

Work history, roles, and key accomplishments

Current

AI/ML Engineer

Current

Teleperformance Greece

Sep 2025 - Present (1 year 1 month)

AI/ML Engineer with 5+ years building production LLM and agentic systems, from RAG-based root cause analysis to reinforcement learning. Core stack: Python, FastAPI, PostgreSQL, LangChain. Based in Greece, seeking fully remote roles.