The Department of Geosciences at The Pennsylvania State University is seeking a Postdoctoral Scholar to conduct fundamental research in the area of microbial metabolic networks in the Macalady Lab beginning Sept.-Dec. 2021. A successful candidate will have experience in metagenomics / metatranscriptomics and aqueous geochemistry and/or microbiology. Responsibilities include generation and analysis of environmental omics datasets, overseeing the operation of microbial bioreactors, and mentoring students. The candidate will also be expected to prepare project reports, manuscripts, and research presentations in collaboration with team members and thus good technical writing and presentation skills are essential. The postdoc will have the opportunity to join the Astrobiology Research Center and/or the Microbiome Center at Penn State, and will be provided with mentorship and professional development opportunities tailored to their career goals. Applicants should provide evidence, either woven through their application materials or as a separate diversity statement, of a commitment to fostering diversity, equity, inclusive excellence, and belonging and of engagement which creates an inclusive environment in their department/workplace. Interested applicants should submit the following pdf documents: (i) a cover letter detailing scientific interests, qualifications, future goals, (ii) a CV including contact information for three references and (iii) 1-2 representative publications to jlm80@psu.edu. Application review will begin immediately, and the position will remain open until a suitable candidate is identified.