Served
- Iglesia Misionera Renacer (2020-)
- TtoKamsa Mission Church (2015-2020)
- Global Partners (GP) (2012-)
- Karis Ministry/Beautiful Church (2011-2013)
- Faith Community CRC (2010-2014)
- Orange Korean CRC (2003-2009)
- Orange Korean CRC (2001-2003)
- Oriental Mission Church (2000-2001)
- TtoKamsa Mission Church (1998-1999)
- Orange Korean Church (1994-1998)
- Young Nak Presbyt. Church (1990-1993)
- Princeton Theological Seminary (1987-1990)
- Chicago Presbytery PC (USA) (1986-1987)