DigiPen Institute of Technology (2008~Present): Senior Vice President of Academic Affairs, Dean of Faculty, Director of Education. Oversee eleven academic departments and nine degree programs. Coordinate effort of accreditation and degree authorization at the state and national levels.

DigiPen Institute of Technology (2004~Present): Director of Graduate Programs. Responsible for program curricula, recommentations of semester course offering, and graduate student advisory. Chair the Graduate Program Advisory Committee.

 DigiPen Institute of Technology (2001~2007): Chair, Computer Science Department. Oversaw departmental affairs, including semester course offering and staffing, new faculty hiring, new course development, semesterly course evaluation, annual performance review and faculty professional development.

 DigiPen Institute of Technology (2000 ~ Present): Full professor. Taught classes in both undergraduate and graduate levels, including 3D advanced computer graphics, Design and Analysis of Algorithms, Raytracing, Animation techniques, real-time rendering and physically-based modeling algorithms. Thesis advisor of many graduate student research projects.

 Nintendo Software Technology Corp. (1998~2001): Senior software engineer in conceptual design and prototyping of a 3D game engine for the next generation Nintendo video game console. The state-of-the-art graphical and simulation techniques are investigated, analyzed, critiqued and integrated into the video game systems. Improved several rendering algorithms. Author or co-author of eight provisional patents.

 Lockheed Martin Information Systems (1996~1998): Project lead in designing and implementing a system to simulate hydrological effects on ground vehicles. Physically-based weather model, soil moisture strength prediction model and mobility model are integrated to imitate their interactions and effects to the ground trafficability and vehicle operations.

 Loral Advanced Distributed Simulation (1993~1996): Pivotal role in designing and implementing an open-architectural, platform-independent software package to advance the state-of-the-art graphical representation of environmental phenomena in network-coupled virtual worlds. Key contributor to the architecture, graphical modeling integration and visualization algorithms. Also led a team to modify the real-time simulation software of the computer image generator to incorporate real time tessellation of a SIMNET database. Implemented a virtual bulldozer based on physical soil models dynamically changing the terrain