The Observatory on Social Media at Indiana University, Bloomington invites applications for a Postdoctoral Fellow position. The anticipated start date is January 1, 2023. The position is initially for 12 months and can be renewed for up to 24 additional months, depending on performance and funds availability. The Fellow will work with Filippo Menczer and collaborators at IU and other universities on sponsored research related to modeling the spread of harmful misinformation on social media.