The Monterey Bay Aquarium Research Institute (MBARI) invites qualiﬁed candidates to apply for a position as a Principal Investigator in science or engineering with a programmatic vision that advances understanding of seafloor processes and fosters the development of novel observational capabilities and/or methods. Candidate interests may span the fields of geology, geophysics, geochemistry, or interplay between abiotic and biotic systems associated within the deep-sea floor. MBARI Principal Investigators lead small research groups that collaborate with Engineering Division staff and other researchers, organize and conduct at-sea research operations, and disseminate developments and discoveries to a broad audience. A Doctorate or equivalent in a scientific or engineering discipline and a minimum of 3 years demonstrated success in conducting research is required, along with a record of significant, original, and promising research contributions. Applicants at an early- to mid-career stage (equivalent to an assistant to associate professor) with a demonstrated ability to work in an interdisciplinary, team-oriented environment are encouraged to apply. We are currently receiving applications for this position, which will remain open until filled. We expect to begin reviewing applications and scheduling interviews on October 1, 2021.