[2] Davidkhanian served as the financial supervisor or Chief of Procurement to Fath-Ali Shah Qajar for forty-four years, from 1804 to 1848.

[2] Davidkhanian was appointed Chief Financial Advisor in 1804, a year after the Russo-Persian War had begun, which was a struggle for supremacy in Transcaucasia dating back to the empires of Peter the Great and Nader Shah.

[4][5] Although peace reigned for thirteen years after the war, the Persian economy was in shambles, forcing Davidkhanian to rely on foreign subsidies.

Persia signed the Treaty of Turkmenchay to end the war in February 1828, which forced Davidkhanian to pay 20 million rubles in silver.

As Russia increased its sphere of influence in Iran, Davidkhanian attempted to stem the flow of the Shah's dwindling finances, organized foreign loans, and managed domestic economic instability.