- Graph-Based Conversational AI for Museums and Tourism Applications, enabling personalized interactions, continuous learning, and an enriched visitor experience through a collaborative, distributed approach leveraging both traditional and Generative AI techniques, including Retrieval-Augmented Generation (RAG) with Large Language Model (LLM) agents.- Development of Data Science dashboards in order to create new training data (intents, entities) and organize, visualize, analyze, track ongoing data (conversations, metadata) in real time to improve the Conversational AI Agents. - MLOps Engineering for deploying and managing CI/CD pipelines of Machine Learning applications.- Data engineering tasks for museums and cultural foundations, optimizing raw datasets for enhanced accuracy through comprehensive data preprocessing, to support the digitization of their content.

- Software development of full stack programming environments adapted to the needs of the War College.- Exploratory data analysis (EDA), visualization and interpretation for students' demographics, assessment data, instructors' performance and Hellenic Army's research.- IT support on Software and Hardware malfunctions, compatibility issues, troubleshooting.

- Telemetry and control of irrigation and drainage pumping stations via SCADA to purify seawater for agricultural enterprises.- Microcontroller based Motion Detection Alarm System using GSM for irrigation ditch overflows.- Utilized PLC (Programmable Logic Controllers) to lower costs and increase flexibility instead of conventional relay logic.- Study of photovoltaic systems for pumping stations to make use of the water’s cooling effect while reducing evaporation.