Staff technologist Vail (Colorado) Valley Medical Center, 1976-1977. Chief technologist Rosenbaum and Flannery Clinic, Portland, Oregon, 1977-1979. Staff technologist Vail Valley Medical Center, 1979-1980.
Staff and rotating technologist Pacific Northwest Red Cross, Portland, 1981-1987, supervisor red cell reference laboratory, since 1987. Lecturer in field; member national advisory committees.