Guest Supply, LLC


Job Locations US-IN-Plainfield
Posted Date 1 week ago(3/13/2018 10:56 AM)
Job ID
# of Openings


The Microbiologist I is responsible for the organization and execution of all microbiological sampling and testing.  All record maintenance of microbiology testing must be complete, legible and reported on a regular basis.  The Microbiologist I is responsible for assistance in trouble shooting, problem solving, and root cause analysis. 


  • Tests samples of raw materials.
  • Tests compounding batch samples and finished product, andreleases prroduction batches.
  • Routinely tests water quality in the QC lab as well as the Compounding Department.
  • Pours agar plates, as needed, and prepares other media
  • Evaluates swabbing results of environmental testing such as compounding and filling equipment and tools.
  • Assists in micro testing and staff hygienic standards SOPs.
  • Releases finished good products for distribution.
  • Quarantines out of specification products for additional testing or destruction.
  • Responsible for, but not solely responsible for, verification of line sanitization at changeover, and tank sanitization in compounding.
  • Verifies all cleaning and sanitization procedures.
  • Accurately documents and records microbiology testing results and reports results in a timely manner to the QC Supervisor and Quality Manager.
  • Conducts preservative challenge testing as needed.
  • Assists in problem solving and provides root cause analysis.
  • Keeps a clean and safe lab environment.
  • Complies with all Good Manufacturing Practices as outlined by G&S and governmental institutions.
  • Help with bench work / lab batch making when required.
  • Assists with other duties and special projects as assigned.



  • BS in microbiology or related biological scientific field required.


  • 1-3 years experience bench top experience in an FDA regulated industry. 


  • Excellent communication (verbal and written), interpersonal and professional interactive skills are necessary to perform at a high degree of proficiency.
  • Ability to operate computerized lab equipment and maintain accurate data/records.
  • Ability to competently prioritize and handle multiple tasks.
  • Strong analytical and problem solving abilities.
  • Detail Oriented – Attention to details and accuracy.
  • Team oriented and able to successfully work independently or in a collaborative/group setting.
  • Flexible, adaptable, and capable of working in a fast paced environment.
  • Excellent skills in Microsoft Word, Excel and ability to learn new software quickly.
  • Outstanding skills in mathemetics.


The physical, mental, and environmental conditions in which the work is performed. The demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.  Reasonable accommodations will be made to enable individuals with disabilities to perform the essential functions of this job.

  • While performing the duties of this job, the employee is regularly required to sit, stand, walk and use hands and fingers to operate a computer keyboard, mouse, and telephone to talk and hear. The employee is frequently required to sit and reach with hands and arms. The employee is occasionally required to lift up to 25 pounds.  Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus.
  • The noise level in the work environment is usually moderate.
  • This position may require evening and weekend work depending on business needs.

This job description indicates in general terms, the type and level of work performed as well as the typical responsibilities of employees in this classification. The duties described are not to be interpreted as being all-inclusive to any specific employee. Management reserves the rights to add, modify, change or rescind the work assignments of different positions and to make reasonable accommodations so that qualified employees can perform the essential functions of the job. Nothing in this position description changes the at-will employment relationship existing between the Company and its employees. This job description supersedes prior job descriptions.



Guest Supply is an Equal Opportunity/Affirmative Action employer and is committed to hiring a diverse workforce (M/F/Disabled/Veteran)


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