After graduating Seoul Girls' Commercial High School, Moon had worked at Kookmin Bank for three decades.
[4] In 2020 election, Moon ran for the constituency in Goyang[5] represented by Sim Sang-jung from 2012.
[7] Moon previously worked for Moon Jae-in's presidential campaigns as the chair of special committee for Financial Economy in 2012 and Financial Consumer Protection in 2017.
She is now an advisor to government finance institutions - Korea Deposit Insurance Corporation and Korea Inclusive Finance Agency - and a special member of Presidential Committee for Balanced National Development.
[8] From 2019 Moon has served as one of vice chairs of Policy Planning Committee of Democratic Party and a member of financial stability task force of its COVID-19 committee.