In 2000 he was granted a Candidate of Agricultural Sciences degree. In 1993 Gadzhiev became the director of the Derbent cognac factory. Later he became a deputy of the People's Assembly of the Republic of Dagestan. In 2011 he was elected deputy of the 6th State Duma from the Dagestan constituency. Gadzhiev ran with the United Russia. In 2016 and 2021 he was re-elected for the 7th and 8th State Dumas respectively.
