After graduating Kay McNulty was employed as a mathematician by the Moore School of Engineering where she worked on preparing firing tables for guns. McNulty described the work which she did in the following way:
Pagkatapos graduating Kay McNulty ay trabaho bilang isang dalub-agbilang ng Moore School of Engineering na kung saan siya nagtrabaho sa paghahanda ng pagpapaputok mga talahanayan para sa baril. McNulty inilarawan sa trabaho kung saan siya ay sa mga sumusunod na paraan: