The South Korean soprano, Sae-jeong Kim started her  singing  career in high school, when she won the prestigious award from the city of Daegu (Korea).
With great help and support from her teacher Kwonja Shin, she entered Kyungbuk National University(KNU) where she has studied with Gyija Kim.
As a part of her studies at KNU , she performed in several operas to gain more experience on stage.
While studying at University, she won the concerto competition which allowed her to perform with KNU Symphony. She was also picked as an upcoming young soloist to represent  KNU.
Immediately after her graduation, she became a member of the Pohang City Choir.
All this didn't stop her exploring further into Musicals. As a  result she has performed in the musicals  The Sound of Music, Evita and The Phantom of the Opera.

During her career she  developed a deeper interest in early music and continued her studies as a Master student at the Royal Conservatory of The Hague.
In September 2009, she performed the opera "Dido & Aeneas" (as Dido) by Purcell, during the Master class with James Bowman.
She participated in several operas In October 2009,she performed successfully as Poppea in Handel’s opera "Agrippina". In September 2010, she performed  "La serva padrona" by Pergolesi. This was the final concert of her Master class with Mark Tucker.
In February 2011, she won the audition for Solo Cantata INO by Telemann, and performed with Jacques Ogg and Royal Conservatoire Baroque Orchestra in Voorschoten and De Glind.
As a soloist she has been  performing The Requiem by Mozart, the Messiah by Handel, Die Schöpfung by Haydn, St.Matthew Passion, St.John Passion, Magnificat and many Cantatas by Bach . Sae-jeong has a lot of choir experience: she has been a permanent professional member of Pohang city choir for 6 years. In 2013 she has been singing with Schleswig-Holstein Festival Choir and the Nederlands Kamer Koor.

She studied under Barbara Pearson, Jill Feldman, Peter Kooij and Michael Chance.