Jin Ki-joo was previously an employee of Samsung SDS and then worked as reporter for SBS regional affiliate G1 before starting her acting career.[3] After Jin won a prize in the 23rd Supermodel Contest, the organizer introduced her to some of the actors management companies.[4] Her acting debut was for 2015 tvN's romantic comedy television series, Second 20s.[1]
2018 was Jin's breakthrough year. She got nominated and won several major film awards with her role as a snarky and playful country girl who yearns for big city in Little Forest.[5] Her standout role as the protagonist's rival in JTBC's melodrama mystery Misty[6] paved the way for Jin to be cast as leading role for the first time in MBC's melodrama thriller Come and Hug Me.[7]
^Jeon Hyung-hwa (May 10, 2021). "[단독]진기주 '미드나이트' 티빙 공개-지창욱 '발신제한' 극장 개봉..변화의 시작 [종합]" [‘Midnight’ Teabing Revealed - Ji Chang-wook’s ‘Call Restriction’ theatrical release..The Beginning of Change [Comprehensive]]. star.mt (in Korean). Retrieved May 10, 2021.
^Jeon Hyung-hwa (August 17, 2021). "[단독]진기주, '행복의 나라' 합류..조정석·이선균·유재명과 호흡" [[Exclusive] Ki-joo Jin joins 'Land of Happiness'... Breathing with Jo Jung-seok, Lee Seon-gyun, and Yoo Jae-myung]. Star News (in Korean). Naver. Retrieved August 17, 2021.
^Kim Myung-mi (July 29, 2021). "진기주 측 "'지금부터 쇼타임' 제안받고 긍정 검토중"(공식입장)" [Jin Ki-joo's side "Received an offer for 'Showtime' and is reviewing it positively" (official position)]. Newsen (in Korean). Naver. Retrieved July 29, 2021.
^Kang Jin-ah (August 2, 2021). "진기주, '지금부터, 쇼타임!' 여주인공…박해진과 호흡" [Jin Ki-joo, 'From now on, Showtime!' female lead... Breathing with Park Hae-jin]. NEWSIS (in Korean). Naver. Retrieved August 2, 2021.