Željko Osrečki graduated from Faculty of Electrical Engineering, Computer Science and Information Technology Osijek in 2014 and from Faculty of Electrical Engineering and Computing in Zagreb in 2016. Over a period from July 2016 to October 2016 he was working on a project “Demonstration of low noise amplifier in horizontal current bipolar transistor technology” as a project engineer. As of October 2016, he is with the Department of Electronics, Microelectronics, Computer and Intelligent Systems as a Research and Teaching Assistant on the project “High-performance Semiconductor Devices for Wireless Circuit and Optical Detection Applications” led by Professor Tomislav Suligoj. His research focus is design and optimization of radiofrequency power amplifier in advanced horizontal current bipolar technology - HCBT. He is winner of Dean’s Award for team scientific work titled “Design of quenching circuits for single-photon avalanche diodes”.