IONUŢ HRUBARU received the Ph.D. degree in business informatics from Alexandru Ioan Cuza University, Iași, Romania, in 2016, with a thesis on polyglot persistence for business applications. He is currently a Lecturer with the Faculty of Economics and Business Administration, Alexandru Ioan Cuza University, Iași, where he teaches courses on databases, object-oriented programming, multitier software architecture, data processing languages, and information systems integration. Since 2016, he has also served as Chief Technical Officer with Optymyze, Iași, overseeing engineering, product, cloud, and IT operations across the company. Dr. Hrubaru's research interests include SQL and NoSQL databases, data engineering, big data storage and processing, information integration, distributed systems, and performance benchmarking.