Economou grew up in Long Island where she was involved in music programs at public school.
[1] Economou and her sister also grew up playing the Sega Genesis and games on the first generation of Xbox.
[1][2] During her Master's degree for Composition for Visual Media at UCLA, she had an apprenticeship with Harry Gregson-Williams, who employed her following her graduation.
[3] Ubisoft approached Economou and employed her to initially work on Assassin's Creed Valhalla: The Siege of Paris.
[1][4] Economou composed the soundtrack to the Dawn of Ragnarök expansion of Assassin's Creed Valhalla.