Hadir was born in Cairo, Egypt. She obtained her Bachelor’s degree in Biology with a minor in Chemistry at the American University in Cairo. During her Bachelor’s degree, she also participated in an Erasmus exchange program, where she conducted her third year at the University of St. Andrews, Scotland. Following her Bachelor’s, Hadir was awarded a Cancer Research UK studentship to conduct a four-year PhD program at the Cancer Research UK Manchester Institute (CRUKMI) in the Cell Signalling group headed by Angeliki Malliri. During her PhD, Hadir was focused on dissecting the molecular mechanisms involved in dictating the biological outcomes mediated by the small GTPase Rac1, a key regulator of cytoskeletal rearrangements and cell migration. Stemming from her interest in small GTPases, Hadir joined the Dikic group as a postdoctoral fellow, where she is currently investigating the role of regulators of Rab GTPases in modulating autophagy. Additionally, she is also exploring the interplay between cytoskeletal regulators and the trafficking machinery, under normal and pathological conditions. Given her scientific background, Hadir is also interested in identifying novel proteins that modulate the cytoskeleton, particularly following bacterial infection.