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Microbiology Supervisor 


JOB STATEMENT: The Microbiology Supervisor will execute all microbiological tasks, procedures and protocols in order to assure that the product produced, cellared and/or bottled by Bronco Wine Company meets government, customer and Company specifications. This position will allow for personal development and exploration of the microbiological concepts encountered during winemaking. The supervisor will provide guidance and management of the Microbiology personnel.

Essential Duties:

  • Understand and comply with all ISO9001, HACCP and GMP requirements and processes
  • Oversee the plating of winery samples (product, cork, water, before and after filtration, etc.)
  • Technicians understanding and following procedures
  • Isolation and typing of microbes encountered in the winery environment
  • Investigate results discovered
  • Understand what the cell counts and viabilities of storage an d fermentation tanks denote
  • Oversee the plate and data entry
  • Confirm all results and data are correct
  • Maintenance of microbiology files
  • Up to date
  • Summarize Microbiology data for the manager
  • Knowledge of and overseeing the sanitation processes throughout the winery
  • The bottling lines and in the Cellar
  • Instruct the technicians on sanitation procedures
  • Spot check technicians
  • Understand and following procedures
  • Check on new equipment or process for microbiology
  • Interfacing with other departments on microbiological issues
  • Special projects and experimentation
  • Liaising with Quality Assurance pertaining issues of similar interest
  • Oversee calibration of equipment
  • Instruct technicians on calibration
  • Maintain
  • Calibration scheduled
  • Accuracy of equipment
  • Oversee the ordering of supplies & parts
  • Safety awareness
  • Participation in monthly safety inspections
  • Watch for potential microbiological problems
  • Troubleshoot microbiological problem
  • Possible solutions
  • Inform the microbiology manager of any problems related to microbiology
  • Training of technicians in microbiological procedures
  • Oversee the training of the technicians by other technicians (Lead, Senior, and Technician II)
  • Coordinate the workload/schedule of each shift
  • Other non-specified duties as designated by manager



  • B.S. or Master in Microbiology or 3+ years
  • Winery in Microbiology experience preferred
  • Knowledge of Microbiology concepts and techniques
  • Supervision experience
  • Understanding of Wine Microbiology
  • Crush experience
  • Bottling line experience
  • Sanitation experience
  • Proficiency in Microsoft Office

Ability to:

  • Spot and prevent potential quality problems
  • Good manual dexterity
  • Work without supervision
  • Work any shift
  • Work within a team environment
  • Travel to other facilities
  • Able to work at heights of 50’ (tops of tanks)


  • Frequently sitting/walking/standing
  • Lift up to 30-40 lbs occasionally
  • Use hands to gasp, feel, move, reach or assemble


  • Limited noise level
  • Indoor and outdoor climates


  • All employees must be trained and familiar with Bronco Wine Company's Injury and Illness Prevention Program (IIPP).
  • Report any accidents and any unsafe conditions to your Manager immediately
  • Comply with all General Work Safety Rules pursuant to Bronco Wine Company's Injury and Illness Prevention Program (IIPP).
  • Use of Personal Prevention Program
  • Side Shield safety glasses, safety vest, hearing protective, head protection and approved footwear when in production facility.
  • Specific Safety Knowledge
  • Must have knowledge of all Bronco Safety rules, GMP, GLP. Bottling Safety, HACCP and Chemical Safety.
Position Requirements  
Full-Time/Part-Time Full-Time  
Shift -not applicable-  
Position Microbiology Supervisor  
Exempt/Non-Exempt Exempt  
Req Number GEN-18-00006  
Open Date 1/29/2018  
Location Bronco Wine Company  
EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, national origin, disability status, protected veteran status or any other characteristic protected by law.  

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