Share this Job

Seasonal Must Line Operator

Location: Fresno, CA, US

Date: Jun 16, 2022

Company: E. & J. Gallo

Why Gallo?

With a global portfolio of over 100 unique wine and spirits brands, we are the largest family-owned winery in the world. Apply Today! Our Brands. Your Future.


Under immediate supervision by their shift Team Leader, the Seasonal Mustline Operator’s primary responsibility is to insure that the specified grapes are going into the correct tank. The Must Line Operator also works with the fermentation area to ensure the throughput to the gravity drain is within yield and acquires gauges from the fermentation area tanks.

You must be available to work the full Harvest Season which runs from June - November.



  • Completes all paperwork in a clear, legible manner.
  • Knows valve operation and possibilities of various flow directions of all must lines.
  • Insure tank is secured.  Verifies the designated crush tank is, in fact, receiving the proper grape type and that there are no leaks into other crush tanks upstream from the receiving tank.
  • Sets all valves for each program prior to any crushing into that program.
  • Monitors the levels of all tanks receiving must by periodically doing a visual level check.
  • Monitors the operation of circulators for the fermenters and report circulators that are plugged or not operating to the Fermenter Supervisor.
  • Monitors the must tubs for the Crushers and notify Crusher Supervisor of any discrepancies.
  • Completes periodic checks of which tanks the must is going into and check for color determination.
  • Becomes familiar with all Crush Tank locations and what programs they are associated with.  Keeps aware of the programs in all the crush tanks on a daily basis.
  • Collects gauges for the fermentation area.
  • Manages the throughput and yields of the gravity drains in the fermentation area, ensuring that the flow that the gravity drain operator is controlling is in line with the required yield.
  • Maintains satisfactory attendance, to include timeliness. 
  • Responsible for understanding and complying with applicable quality, environmental and safety regulatory consideration.
  • This job description reflects management’s assignment of essential functions; it does not prescribe or restrict the tasks that may be assigned.




To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.  The requirements listed below are representative of the knowledge, skill and ability required.  Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Gallo does not sponsor for employment based visas for this position now or in the future.


  • High School diploma or State-issued equivalency certificate.
  • Skilled in reading, writing, and understanding the English language.
  • Experience working with others and maintaining attention to detail and accuracy.
  • Skilled in computing basic math problems involving fractions, addition, subtraction, multiplication, and division.
  • Must be at least 18 years of age.
  • Required to lift and move up to 50 lbs.
  • Required to work any shift.
  • Required to work overtime if necessary.
  • The position requires seasonal availability for a seven day work week (8 - 12 hours per day).
  • Required to comply with company GMP Policies.


Experience in a manufacturing environment is a plus, but not required.


  • The physical 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 may be made to enable individuals with disabilities to perform the essential functions.
  • While performing the duties of this job, the employee will be required to:
  • Stand, walk, use hands to finger, handle or feel and reach with hands and arms, climb or balance, stoop, kneel, crouch, crawl, talk, and hear.
  • Stand and walk almost the entire workday.
  • Properly lift and carry up to 28 pounds constantly with torso rotation and neck movement.
  • Properly lift and carry up to 60 pounds occasionally.
  • Required to work at extreme heights on the Fermenter tank tops and in fairly small areas.
  • Required to utilize catwalks to perform work.
  • Employees must be physically capable of working in any of the job tasks within the winery.
  • Required to work at heights and in fairly small areas.
  • Pushing, pulling, reaching, bending, stooping, squatting, kneeling, handling and grasping, twisting/turning, repetitive bending up to 50 pounds.
  • Proper “stand up” lifts of 50 pounds.


  • The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job.  Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
  • While performing the duties of this job, the employee is frequently exposed to the following: 
  • Exposure to dust, fumes, smoke, gases, or other irritating substances.
  • Exposure to solvents or chemicals.
  • Exposure to slippery walking surfaces: water.
  • Exposure to marked changes in temperature and humidity depending on time of year.
  • The work is performed outdoors, in ambient weather conditions, which fluctuates in temperature extremes from + 32oF to + 105oF.

Requisition ID: 90941


OPE001 VAL001


Gallo is an Equal Employment opportunity and Affirmative Action Employer. We do not discriminate on the basis of race, traits historically associated with race, including but not limited to, hair texture and protective hairstyles (such as braids, locks, and twists), color, national origin, ancestry, creed, religion, physical disability, mental disability, medical condition as defined by applicable state law (including cancer and predisposing genetic characteristics in California), genetic information, marital status, familial status, sex, gender, gender identity, gender expression, pregnancy, childbirth or related medical conditions, sexual orientation (actual or perceived), transgender status, sex stereotyping, age, military or veteran status, domestic violence or sexual assault victim status, or any other basis protected by applicable law. 


We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Gallo is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process.
If you need any assistance or accommodations due to a disability, please let us know at 209.341.7000.


Nearest Major Market: Fresno

Job Segment: Law, Legal