[1][2][3] Leshchynska graduated from the Kyiv National Linguistic University in 1996, having majored in German.

[4] Her diplomatic career encompasses various positions within the Ministry of Foreign Affairs of Ukraine.

Subsequently, she was appointed deputy director of the Department and Head of the Division for Asia-Pacific Countries.

Olena also held the position of acting director of the Department of Asia-Pacific Countries.

[5] After serving as First Secretary at the Ukrainian Embassy in China,[6] she assumed the role of Counselor-Envoy and Chargé d'Affaires, becoming the acting head of the embassy.