Giannis Ntovas is a Principal AI Engineer at Kaizen Gaming, where he builds AI agents and the inference systems that run them. He works with large language models (LLMs) at every layer, from inference engines and open-weight models to agent design and evaluation. Before his move to AI, he worked for years as a software developer and site reliability engineer on high-traffic, real-time platforms. Because of this background, he treats latency, cost, and reliability as core parts of an AI system. He has 10 years of experience in software and is based in Athens.