2023. 01 - Present : Digital Design Engineer at Texas Instruments, Federal Way, WA, US
2021. 11 - 2023. 01 : Machine Learning Computer Architect at Micron Technology, Seattle, WA, US
2019. 12 – 2021. 10 : Digital Design Engineer at Apple Mobile Deutschland, Germany
2017. 08 – 2019. 12 : Digital Design Engineer at Intel Deutschland GmbH, Germany
2015. 02 – 2015. 11 : Postdoctoral Researcher at Verimag Lab., France
2013. 08 – 2014. 04 : Postdoctoral Researcher at Microelectronic Research Group, Dept. of CS, University of Bristiol, UK
2011. 10 – 2013. 03 : Research Professor at Dept. of EE. Sogang University, South Korea
2010. 08 – 2011. 09 : Visiting Researcher at AI Accelerator Computing Lab., Dept. of CE, Hallym University, South Korea
2009. 08 – 2010. 08 : Postdoctoral Researcher at SNUCAD Lab, Schol of EECE, Seoul National University, South Korea
2009. 03 – 2009. 08 : Postdoctoral Researcher at Communication System Lab., Dept. of Info. & Comm.,GIST, South Korea
2000. 03 – 2001. 02 : Adjunct Researcher in SDA (System Design Automation) Team, ETRI, South Korea