PETER STRELEC received the B.S. degree in graphical data processing in 2003, the M.S. degree in information technology and automation in industry in 2005, and the Ph.D. degree in process automation and informatization from the Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, Slovakia. He is currently with the Institute of Computer Technologies and Informatics, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Slovakia, where he is involved in teaching, applied research, and supervising student research projects. He has also professional engineering experience in the telecommunications sector in Austria. His research activities focus on industrial Internet of Things (IIoT), cybersecurity of distributed and IoT infrastructures, Big Data processing, heterogeneous data-stream integration, industrial communication protocols including OPC UA and MQTT, machine learning, wireless and LPWAN sensor networks, and the design of digital twins for industrial processes. He is also involved in developing software prototypes for monitoring and managing IoT devices and in designing communication-security architectures for LoRaWAN and related LPWAN technologies. He has coauthored research articles published in international peer-reviewed journals, including IEEE Access and Electronics. Dr. Strelec is engaged in applied research and technology transfer, with a particular emphasis on practical IIoT deployment, sensor