Oleksii Durmasenko worked as a landscape designer. When Maidan protests started, he left his prestigious job in Moscow and moved to Kyiv, taking an active part in the protests. He volunteered for the Ukrainian army and went to the Donbas.
His brothers-in-arms say that he always was a desperate fighter, always capable of heroism and eager to go to the frontline. Shortly before his death, Oleksii and two fellow soldiers hoisted a Ukrainian flag on the new terminal of the Donetsk airport.