[2] Later in life he became a businessman and started a career as a smuggler at the "3, rue des Récollets" in Strasbourg, France, [2] and drifted into trading information as well as goods.
[3] He was a spy for the Austrian Empire and the Holy Alliance, but was recruited by General Savary to spy for France.
His information led to the French capture of Louis-Antoine-Henri de Bourbon and also contributed to the victory at Austerlitz.
Schulmeister also acted as a General in Napoleon's army, undertook espionage missions that took him into England and Ireland, and was appointed commissioner of police for Vienna during Napoleon's second occupation in 1809.
[4] At the peak of his career, he was director of the French Secret Service, but he ended life as a modest tobacconist in Strasbourg after the Hundred Days ended Napoleon's rule.