Was born on January 31, 1962 in Leningrad.
He graduated from Voznesensky Leningrad Finance and Economics Institute and holds a PhD in Economics.
Upon graduation, Alexey Miller was engineer-economist at the General planning division of Leningrad Civil Construction Research and Design Institute (LenNIIproekt under the Executive Committee of the Leningrad City Council).
1990 - Junior researcher, Leningrad Finance and Economics Institute; Section Head, Economic Reform Committee, Executive Committee of the Leningrad City Council.
1991–1996 - Head of the Markets Monitoring Division, Foreign Economic Relations Directorate, External Relations Committee of St. Petersburg Mayor’s Office; Head of the Foreign Economic Relations Directorate; Deputy Chairman of the External Relations Committee.
1996–1999 - Director for Development and Investments, Sea Port of St. Petersburg.
1999–2000 - Director General of Baltiyskaya Truboprovodnaya Sistema (Baltic Pipeline System).
2000 - Deputy Energy Minister of the Russian Federation.
Since 2001 - Chairman of the Management Committee, Gazprom.
Since 2002 – Deputy Chairman of the Gazprom Board of Directors.