The Schaedel Lab in the Department of Crop and Soil Science at Oregon State University is seeking applications for a PhD student position in soil microbiology, with a flexible start date in 2026. The successful candidate will lead a research project focused on plant–microbial interactions that influence soil carbon dynamics, contributing to sustainable soil management and climate resilience. The position offers the opportunity to work with an interdisciplinary team and develop skills in isotope labeling, experimental design, bioinformatics, DNA stable isotope probing, microbiology, and ecology. Applicants should have a bachelor's degree in soil science, microbiology, or a related field, and demonstrate strong interest in microbial ecology, soil health, and sustainable agriculture. Preferred qualifications include research experience, proficiency in R or Python, and a background in bioinformatics or statistics. The priority application deadline for the spring term is December 1, 2025. Interested candidates should send a CV and a brief statement of interest to Dr. Marie Schaedel. For more information, prospective students can visit the Crop and Soil Sciences Graduate Program at Oregon State University.