Possibly a Yiddish form of Esperanza. This is the name of Tevye’s fourth daughter in the musical Fiddler on the Roof (1964), based on the late 19th-century Yiddish stories of Sholem Aleichem.
People with the name Nizam have a deep inner desire to use their abilities in leadership, and to have personal independence. They would rather focus on large, important issues, and delegate the details.