Andriy Yermak was born on 21 November 1971 in Kyiv, Ukraine (then part of the Soviet Union).[2] Yermak's Russian-born mother Maria met his Kyiv native father Borys on a school trip of a Leningrad school to Kyiv.[5] Yermak's father is Jewish.[6] They met through mutual acquaintances.[5] The couple married in 1971 and she moved to Kyiv.[5] Yermak has a brother Denys, who is 8 years younger.[5]
In 1990, he started and in 1995 graduated from Kyiv's Taras Shevchenko National University's Institute of International Relations with a master's degree in international private law.[2][5] The same year he received his license for law practice.[2] In his second year of university, at the request of one of his teachers, he started working for the law company Proxen.[5] He is also a member the Association of Lawyers of Ukraine.
In 1997, Yermak founded the International Law Firm and was engaged in the field of intellectual property and commercial law.[1] Between 2006 and 2014 he, in his profession as lawyer, aided Party of Regions MP Elbrus Tedeyev.[7][1] In 2009, he founded and headed the public organization "Association of Entrepreneurs of the City of Kyiv".
He founded the Garnet International Media Group in 2012[9] and is the producer of such films as Rule of Battle [Wikidata] and The Line.[10] He is a member of the Ukrainian Film Academy, and a member of the European Film Academy (2017).
On 21 May 2019, newly elected President Zelenskyy appointed Yermak as Presidential Aide for Foreign Policy Issues.[1] In this role he negotiated major prison exchanges with Russia during the war in Donbas.[11]
President Zelenskyy appointed Yermak as Head of the Office of the President of Ukraine on 11 February 2020.[1] He became a member of the National Security and Defense Council the following day.[13] As the Head of the President's Office, his duties are to provide administrative, legal, consultative, advisory, media, analytical and other assistance and support to the President.