She and Huy Tuan Pham proved the Kahn–Kalai conjecture on estimating the positions of phase transitions in statistical mechanics and random graph theory.

[5] From 2021 to 2022 she was a Szegö Assistant Professor at Stanford University, where her postdoctoral mentor was Jacob Fox.

[2][6] In 2023, Park received the Maryam Mirzakhani New Frontiers Prize "for contributions to the resolution of several major conjectures on thresholds and selector processes".

[7] In 2024, she received the Dénes König Prize together with her coauthor Huy Tuan Pham, "for their outstanding research in discrete mathematics, in special recognition of their ingenious, short, and surprising proof of the Kahn–Kalai conjecture".

[8] She is the 2025 recipient of the Levi L. Conant Prize, given for her article "Threshold phenomena for random discrete structures" in the Notices of the American Mathematical Society.