[7] After a short career as legal adviser, Stefanishyna joined the Ministry of Justice at the end of 2007.

[5][1] She worked as the director of the Government Office for European and Euro-Atlantic Integration of the Cabinet of Ministers Secretariat from March to December 2017.

[5] She was then appointed director general of the Government Office for the Coordination of European and Euro-Atlantic Integration of the Secretariat.

[9] Following the election, Stefanishyna worked for the law firm Ilyashev & Partners for a short period.

[1] On 4 June 2020 she was appointed Deputy Prime Minister for European and Euro-Atlantic Integration in the Shmyhal Government.