Associate Teaching Professor (2025.01 ~ till date)

Department of Computer Science & Engineering, School of Electrical Engineering and Computer Science, The Pennsylvania State University, University Park, State College, PA, USA 

Associate Professor/ Chair (2024.09 ~ 12.2024)

Data Analytics, Department of Entrepreneurship, School of Business, Long Island University, Brooklyn, 1 University Plaza, Brooklyn, New York, USA-11201

Assistant Professor (2023.01~ till date)

Department of Management (IT/Cybersecurity), College of Engineering, Technology, and Management (ETM), Oregon Institute of Technology (Oregon Tech), 3201 Campus Drive, Klamath Falls, Oregon 97601. [https://www.oit.edu/ ]

Visiting Assistant Professor (2022.08~ 2022.12.31)

Department of Computer and Information Science (CIS), Gannon University, 109, University Square, Erie, PA - 16541. [https://www.gannon.edu/ ]

Assistant Professor/Director (2018.03 ~ 2022.07)

Department of AI & Big Data, Endicott of College International Studies, Woosong University, Daejeon, South Korea

Research Professor (2016.06 ~2018.02)

Visiting Research Professor (2018.02 ~ till date)

Yonsei Institute of Convergence Technology Yonsei University, Song-Do, Incheon, South Korea

Senior Engineer (2012.03 ~2016.03)

Research and Development Department, Samsung Display Giheung-Gu, South Korea 

Associate Professor 

Information Security Research Group, Institute of Computer Science, University of Tartu, Tartu, Estonia. [https://ut.ee/en ]

Assistant Professor

Department of Management (IT/Cybersecurity), College of Engineering, Technology, and Management (ETM), Oregon Institute of Technology (Oregon Tech), 3201 Campus Drive, Klamath Falls, Oregon 97601. [https://www.oit.edu/ ]

Assistant Professor 

Department of Computer and Information Science (CIS), Gannon University, 109, University Square, Erie, PA-16541. [https://www.gannon.edu/ ]

Visiting Research Professor (2018.03 ~ 2022.07)

Yonsei Institute of Convergence Technology, Yonsei University, Song-Do, Incheon, South Korea