Answer
Mnuchin spent 17 years at Goldman Sachs, a leading investment bank. He joined the firm in 1985 and rose through the ranks, eventually becoming a partner in 1994. During his time at Goldman Sachs, Mnuchin played a key role in several high-profile transactions, including the initial public offering of Facebook in 2012. He left the firm in 2002 to co-found Dune Capital Management, a private equity firm.