Post-Doctoral Research Associate: Department of Microbiology - UTK

Anderson Center for Entrepreneurship & Innovation at University of Tennessee
Anderson Center for Entrepreneurship & Innovation at University of Tennessee

Knoxville, TN, USA

USD 50k-57k / year

Posted on Jun 30, 2026

The Clasen lab in the Department of Microbiology at UTK is seeking a post-doctoral researcher with expertise in structural biology.

The lab studies the relationship between the host immune system and the commensal microbes that colonize the intestinal tract. We seek to understand how host immune responses impact microbial behavior. To address this, we employ a combination of techniques in molecular biology and immunology, next generation sequencing, and in vitro and in vivo models.

This position contributes to the daily operations of the laboratory by ordering and maintaining lab supplies, organizing and managing laboratory space and databases, and supporting new lab members and experimental projects. The role requires performing and troubleshooting a variety of experiments while maintaining detailed laboratory records. Experimental techniques may include protein analysis such as expression and purification, cryo-EM, ELISA, western blotting, and immunoprecipitation; cell analysis including cell sorting, separation, and flow cytometry; bacterial culturing under both aerobic and anaerobic conditions; molecular biology techniques such as cloning, DNA/RNA extraction, and PCR; microscopy; and 2D and 3D cell culture. Additional responsibilities may include mouse organ dissection and preparation of cells and tissues for downstream assays. The position also involves working with animals and maintaining mouse colonies by serving as the primary health contact for animals, managing detailed colony and breeding records, and performing mouse tagging, weaning, and genotyping.


The University of Tennessee, Knoxville, has shaped leaders, changemakers, and innovative thinkers since its founding in 1794. The university is home to more than 38,000 students and 10,000 statewide employees—the Volunteers—who uphold the university’s tradition of lighting the way for others through leadership and service.

UT Knoxville offers over 900 programs of study across 14 degree-granting colleges and schools. As Tennessee’s flagship land-grant university, its footprint spans the entire state. The university holds the highest Carnegie classification for research activity and has deep partnerships with industry leaders and the US Department of Energy’s largest multidisciplinary laboratory, Oak Ridge National Laboratory.

The Knoxville campus serves and recruits for UT Knoxville, including the Institute of Agriculture and the Space Institute, as well as the UT Institute of Public Service.

UT Knoxville considers its employees its number one asset. With values that focus on work-life balance, compensation, and innovation leadership, all Vols are supported to advance professionally. Employees have access to career development and coaching, continued education, and an extensive list of development and training possibilities. The Volunteer employee experience implements structures and practices to attract and retain top-tier talent, fostering a strong staff community and supporting a culture of involvement and engagement for everyone.

The university holds a strong commitment to its land-grant mission of learning and engagement, with a tradition of service and leadership that carries that Volunteer spirit throughout the state and around the world. It has been ranked nationally as “Best Employer for New Graduates,” “One of America’s Best Large Employers,” and “Best Workplace for Women,” and has been designated as “Best Place for Working Parents” by Forbes Magazine.

Apply today and join the Tennessee Volunteer community!

The Clasen lab in the Department of Microbiology at UTK is seeking a post-doctoral researcher with expertise in structural biology. The lab studies the relationship between the host immune system and the commensal microbes that colonize the intestinal tract. We seek to understand how host immune responses impact microbial behavior. To address this, we employ a combination of techniques in molecular biology and immunology, next generation sequencing, and in vitro and in vivo models.

Required Qualifications

  • Education: Doctoral degree in a biochemistry-related field
  • Knowledge, Skills, Abilities:
    • Ability to be respectful, collegial, and work well with colleagues from diverse backgrounds

    • Understanding of basic laboratory safety procedures

    • Excellent written and verbal communication skills

    • Willingness to work with animals

    • Ability to perform the essential functions of the job as outlined in the duties/responsibilities

    • Routine molecular biology/immunology techniques

Preferred Qualifications

  • Experience:
    • Animal handling experience
  • Knowledge, Skills, Abilities:
    • Highly motivated and the ability to work as part of a team and independently.
    • Excellent oral and written communication skills.
    • The ability to develop independent research ideas.
    • The ability to support the lab by participating in laboratory meetings and assisting in establishing standard operating protocols.

Work Location

  • Location: Knoxville, TN

  • Onsite

Compensation and Benefits

  • Anticipated hiring range: $50,000 - $57,000
  • Find more information on UT Benefits here

Application Instructions

To express interest, please submit an application with the noted below attachments.

  • Resume

  • Cover Letter

  • List of 3 Professional References

About The Department

The Department of Microbiology is an active participant and leader in the Community of Scholars on Immunology and Inflammation (CoSI2), Community of Scholars on Microbial Consortia (CoSMiC), and Biomembranes Community of Scholars at UTK, which brings together engineering, chemistry, veterinary, and material sciences, UT Institute of Agriculture (UTIA), Oak Ridge National Lab (ORNL), and the University of Tennessee Medical Center (UTMC) in Knoxville. Labs have access to multiple core facilities on campus including animal facility, genomics core, imaging core, mass-spectrometry core, flow cytometers and cell sorters (https://research.utk.edu/oried/core-facilities/). UTK is the flagship university of the University of Tennessee System and is designated as a Carnegie ‘Very High Research Activity’ University.

The Department of Microbiology values the quality of life of all its members and is committed to promoting an atmosphere where all members of the university community feel welcome and can thrive. Located in the foothills of the Smoky Mountains, The University of Tennessee Knoxville was founded in 1794 and is one of the oldest public universities in the nation. There are over 40,000 students enrolled at the Knoxville campus, who train and study in a city where excellence in academia meets the natural beauty of the southern Appalachian region and in the company of the artists, makers, and entrepreneurs that call Knoxville their home.


This position entails contributing to the daily operations of the lab. Specific responsibilities may include, but are not limited to:

  • Ordering and maintaining lab supplies

  • Organizing and maintaining lab space and databases

  • Supporting new lab members and experimental projects

This position will be expected to perform and troubleshoot experiments and maintain detailed laboratory records. Techniques may include, but are not limited to:

  • Protein analysis (Expression/purification, cryo-EM, ELISA, western blot, immunoprecipitation)

  • Cell analysis (cell sorting/separation, flow cytometry)

  • Bacterial culturing (aerobic and anaerobic)

  • Molecular biology techniques (cloning, DNA/RNA extraction, PCR)

  • Microscopy

  • Cell culture (2D and 3D)

  • Mouse organ dissection and preparation of cells and tissues for downstream assays

This position must be willing to work with animals and will be expected to maintain mouse colonies. Specific responsibilities may include, but are not limited to:

  • Serving as the primary health contact for animals

  • Maintaining a detailed inventory of mouse colonies and ongoing breeding

  • Tagging, weaning, and genotyping mice