Seongah Shin holds a Master of Music degree in Computer Music Composition from the Peabody Institute of Johns Hopkins University and Chugye University for the Arts, as well as a Master of Fine Arts in Sound Design from Missouri State University. She earned her Doctor of Musical Arts degree in Composition, completing her academic training with a focus on contemporary and electroacoustic music.

Her professional appointments include composer residencies with the Missouri State Theatre Company, the Aspen Music Festival, and the Experimental Media and Performing Arts Center at Rensselaer Polytechnic Institute (RPI) in New York. Since 2003, she has curated and presented ten solo concerts under the MixMediaImprov. series and has had her works featured at numerous international festivals and conferences, including the International Computer Music Conference (ICMC), Seoul International Computer Music Festival (SICMF), Society for Electro-Acoustic Music in the United States (SEAMUS), Japan Society for Sonic Arts (JSSA), Australasian Computer Music Conference (ACMC), June in Buffalo, Electroacoustic Music Studies Network (EMS), New York City Electroacoustic Music Festival (NYCEMF), and the Birmingham ElectroAcoustic Sound Theatre (BEAST) Festival.

In addition to her creative work, she is the founder of The Thin Line Project (2007) and the Asia Computer Music Project (ACMP) (2009). She was awarded the Sound Design Prize at the Seoul Independent Film Festival in 2017 for her contribution to Korean cinema. Shin currently serves as a board member of the Korean Composers Association and is a professor of composition at the College of Music and Performing Arts, Keimyung University.