The Department of Ecology at the School of Biology/Chemistry is seeking to appoint a Research Assistant to commence work at the earliest possible date. Ideal candidate: working experience in the field of microbiology, transcriptomics, and/or mass spectrometry It is a colaborative project together with Sunil Laxman (inStem, Bangalore) and Sandeep Krishna (National Centre for Biological Sciences, Bangalore)

This is a temporary, three-year position. Topic: Metabolic trade-offs and regulatory changes as drivers of metabolic cross-feeding interactions in microbial communities
Your Duties:

Participate in the DFG-funded research project: “Metabolic trade-offs and regulatory changes as drivers of metabolic cross-feeding interactions in simple microbial communities”

  • Perform coculture experiments with different bacterial strains
  • Quantify amino acid production rates and perform metabolic flux analyses (isotopically-labelled substrates) using LC-MS/MS
  • Analyse transcriptomes and proteomes of auxotrophic bacterial mutants
  • Generate and characterize bacterial mutants
  • Work together with collaboration partners in India (Sunil Laxman, inStem, Bangalore und Sandeep Krishna, National Centre for Biological Sciences, Bangalore) and other group members
  • The successful candidate will have the opportunity to work towards a PhD


  • You will have completed a first degree in biology or a related field
  • Solid practical experience in microbiological techniques and molecular biological methods
  • Excellent command in written and spoken English
  • Strong motivation and curiosity
  • Ability to work in an interdisciplinary team
  • Structured and independent way of working

Additional Qualifications:

  • An excellent university degree
  • Creative way of working
  • Experience in mass spectrometric analysis methods
  • Practical experience in the generation and analysis of transcriptomic and proteomic data
  • Sound knowledge of ecological and evolutionary theory
  • Knowledge of quantitative working methods and statistical analysis procedures
  • Ability to develop and analyse theoretical models (metabolic modelling, population dynamics, individual-based models) is an asset
  • Scientific publication(s) in peer-reviewed international journal(s)

We offer:

  • An exciting and highly topical research project
  • Collaboration with international partners and opportunity to spend time abroad
  • Working in an interdisciplinary and international research team
  • Participation in the excellent graduate education programs at Osnabrück University (ZePrOS, IRTG)
  • Access to state-of-the-art research infrastructure at the School of Biology/ Chemistry (CellNanOs)
  • Live and work in the vibrant and livable city of Osnabrück

Osnabrück University is a family-friendly university and is committed to helping working/studying parents balance their family and working lives.

Osnabrück University seeks to guarantee equality of opportunity for women and men and strives to correct any gender imbalance in its schools and departments.

If two candidates are equally qualified, preference will be given to the candidate with disability status.

Please submit your application Code: “MTO” (including a letter of motivation, CV, publication list, copies of certificates, as well as names and contact details of 3 referees) to arrive by July 28, 2022 as one PDF file via email to the Dean of the School of Biology/ Chemistry (Email:

Please contact Prof. Dr. Christian Kost (email:, homepage: for further information.

We are very much looking forward to receiving your application.

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