Earth and Planetary Sciences

Postdoctoral Scientist in Marine Microbial Ecology

The Biogeochemistry group at Washington University in St. Louis invites applications for a postdoctoral scientist position in the area of marine microbial ecology. We are seeking a qualified individual to join our research project investigating phenotypic heterogeneity in microbial populations, and the ways in which bulk biogeochemical properties emerge from heterogeneous populations.

The successful applicant will play a key role in the design, management, and execution of experiments. Ongoing responsibilities will include cultivation of a range of heterotrophic marine microbes in chemostats, and bulk analyses of the molecular and isotopic characteristics of microbial reactants, products, and cellular materials. The individual will conduct a range of single-cell analyses of microbial populations using stable isotope probing, halogenated hybridization probes, and secondary-ion mass spectrometry (SIMS). Other expectations include participation in scientific discussions of the laboratory group, and the production of scientific publications and presentations resulting from the project.

Individuals with skills and experience relevant to the project are especially encouraged to apply. Relevant techniques for this project include the continuous cultivation of microorganisms, common microbiological laboratory procedures such as PCR and molecular cloning, isotopic analysis by EA and TC/EA, and experience with SIMS.


A Ph.D. in a related field is required at the time of appointment.

Application Instructions

Interested applicants should submit a cover letter, a CV including full publication list and the names and contact information for three references to

The position will be available starting September 1, 2019. Review of applications will commence on June 1, 2019 and continue until the position is filled. The initial appointment will be for one year with a second year contingent on satisfactory performance. Hire will be contingent on verification of employment eligibility. Questions about the position should be addressed to Alex Bradley (

Washington University in St. Louis is committed to the principles and practices of equal employment opportunity and especially encourages applications by those underrepresented in their academic fields. It is the University's policy to recruit, hire, train, and promote persons in all job titles without regard to race, color, age, religion, sex, sexual orientation, gender identity or expression, national origin, protected veteran status, disability, or genetic information.

posted: 27 April 2019     Please mention EARTHWORKS when responding to this advertisement.