The DSMZ is an equal opportunity employer and certified by the audit "berufundfamilie".

Job offers

Job offer 13/23

The research group Geomicrobiology within the Department of Microorganisms of the Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures GmbH
offers the position of a

                          Postdoctoral research associate in lake nitrification (m/f/d)

The appointment will be initially for 2 years and is subject to extension based on a positive interim evaluation for another 2 years. The salary level will be according to TV-L 13. The position is offered as full time and is not appropriate for part time work.

We apply metagenomics and metatranscriptomics coupled to cultivation approaches and biogeochemical process measurements to study microorganisms responsible for nitrification in freshwater lakes. The postdoctoral researcher will focus on enrichment of important microbial freshwater clades in combination with genome-centric analyses of metagenomic and metatranscriptomic data obtained from these enrichments and the original freshwater environment. CARD-FISH and/or qPCR analyses in support of these experiments will be conducted as well. In parallel, the establishment of biogeochemical process measurements as based on 15N- and 13C-isotope measurements are anticipated. The Leibniz Institute DSMZ is equipped with state-of-the-art instruments for molecular, chemical, and microbiological work including an own next-generation sequencing and bioinformatics core facility. Instruments for analyses of isotope data are available at the neighbouring BRICS institute of the Technical University of Braunschweig.

We seek a highly motivated and creative person with a track record in the fields of microbial physiology, molecular microbiology, and environmental microbiology. Candidates should hold a doctoral degree in microbiology or a similar research field and have published at least two papers in peer-reviewed journals. Working experience in cultivation, meta-omics techniques, bioinformatics analyses, and microscopy techniques is a pre-requisite. Familiarity with conducting biogeochemical process measurements using stable isotopes is considered as a plus.

The Leibniz Institute DSMZ ( is one of the largest and most diverse bioresource centers in the world. The DSMZ offers a lively and international working place and forms together with neighboring institutes a strong center for basic and applied research. The medieval city center of Braunschweig as well as close proximity to the Harz National Park and to major German cities such as Berlin and Hamburg offer a wide range of recreational and cultural activities. The institutes of the Leibniz Association strive to increase the proportion of female scientists. Disabled applicants with identical qualification will be preferentially selected. The DSMZ is an equal opportunity employer, supports balanced work-life career development, and holds the certificate of the audit berufundfamilie.

For further information please contact Prof. Dr. Michael Pester (michael.pester(at) Please send your complete application documents including a CV, motivation letter, copies of certificates, two reference letters, and at least two publications with application number 13/23 in a single pdf file to bewerbung(at)

The deadline for application is May 31st, 2023, or until the position is filled.