[1] Hauch started his career as page (from 1766) and kammerpage (from 1770) for Christian VII with permission to simultaneously attend classes at Sorø Academy.
The reason for this was that, according to Struensee, Hauch's appointment at court was part of an intrigue that lord chamberlain Conrad Holck had arranged to displace the king's favorite, Fritz von Warnstedt.
In 1773, Hauch left Sorø and in the same year passed a Danish law exam (as opposed to the more prestigious one in Latin) at the University of Kiel.
[2] After his return in 1777, he became an auscultant in the Supreme Court, despite the fact that he had not submitted to the legal official exam "in Latin".
In 1802, he returned to Denmark to serve as prefect of the Diocese of Zealand and the Faroe Islands as well as county governor of Copenhagen County and the Faroe Islands.The following year, on 22 May, he became a Knight of Dannebrog and extraordinary judge in the Supreme Court.