Viticulturist/Assistant Vineyard Manager
Rutherford, California
Job Summary

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Job Title:  Viticulturist-Assistant Vineyard Manager

Date:  February 13, 2018

FLSA Status:  Non-Exempt

Location:  Rutherford

Job Reports to:  Director of Operations



Job Summary:

The Viticulturist-Assistant Vineyard Manager provides technical expertise to vineyard team and monitors and supervises activities of field team in order to ensure production of high quality grapes.


Reasonable Accommodations Statement: To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. Reasonable Accommodations may be made to enable qualified individuals with disabilities to perform the essential functions.


Essential Duties and Responsibilities:  (List the primary duties and responsibilities that are a critical part of this job.  For each major responsibility, indicate the estimated percentage of time spent.) 


  1. Farming Supervision: (40%)
  • Assist in the creation of the Farming Plan, including development, vine training, irrigation, fertilization, canopy management, harvest, etc.
  • Oversees technical performance of supervisors and crew leaders in daily operations.
  • Implement, monitor and maintains records of vineyard operations (work orders, irrigation, pest treatment, pruning/canopy management, harvest, etc.).
  • Assists in maturity sampling and picking scheduling
  • Assist vineyard team in performing yearly evaluations for staff.
  • Supervises maintenance of farming equipment


  1. Viticulturist: (20%)
  • Assist in scheduling pesticide and fertilizer applications and purchasing, in compliance with organic farming practices, including creation of work orders.
  • Schedules pruning, canopy management, fruit thinning, etc.
  • Schedules soil management (tillage, cover crop planting, etc.)
  • Implement farming machinery calibration protocols.
  • Collaborate with PCA on pest scouting and keeps and analyzes pest and fertility reports
  • Attend technical meetings and seminars


  1. Record Keeping: (20%)
  • Implements vineyard data collection such as phenology, shoot growth, leaf water potential, pest monitoring, berry quality parameters, etc
  • Creates and maintains vineyard block maps using GPS and GIS
  • Create post-harvest summary of tons per variety, tons per block, for Finance.
  • Maintain pesticides records and submit monthly Pesticide Use Reports (PUR) to County.
  • Keeps records of labor input for vineyard tasks (own staff and FLC)
  • Create, maintain and update vineyard blocks maps using geographical information systems


  1. Experiment Management: (10%)
  • Coordinates with winemaking staff implementation of vineyard experiments
  • Oversees daily tasks of vineyard interns
  • Serve as liaison between staff and research institutions such as UC Davis, CSU Fresno, USDA, UCCE, etc.
  • Participates in blending and experimental wine tastings.


  1. Safety Manager for Vineyard Operations (10%)
  • Working with HR, train and document all safety procedures including tractor safety, pesticide training, and personal safety procedures.
  • Maintain personal Pesticide Operators License.
  • Insure worker safety in spray environments.
  • Maintain all safety training and document


Supervisory Responsibilities: (List the types of jobs that report to this position and the estimated # of incumbents.)

This job has direct supervisory responsibilities for the technical performance of approximately 30 vineyard workers and 2 crew supervisors, as well as oversight of 2 seasonal interns.


Job Requirements: (Please indicate the minimum required.)

Education/Experience: in Viticulture or Plant Science or Plant Pathology.    Viticulture and horticulture working experience. Must have experience with computer packages as Microsoft Office, GPS, GIS and File Maker Pro. 

Knowledge, Skills & Abilities: (Insert up to 10 competency statements here)

  • Accountability - Ability to accept responsibility and account for his/her actions.
  • Accuracy - Ability to perform work accurately and thoroughly.
  • Applied Learning - Ability to participate in needed learning activities in a way that makes the most of the learning experience.
  • Coaching and Development - Ability to provide guidance and feedback to help others strengthen specific knowledge/skill areas.
  • Deductive Reasoning - Ability to apply principles of logical or scientific thinking to a wide range of intellectual and practical problems.
  • Organized - Possessing the trait of being organized or following a systematic method of performing a task.
  • Persistence - Ability to complete tasks or continue in a course of action in spite of opposition or discouragement.
  • Problem Solving - Ability to find a solution for or to deal proactively with work-related problems.
  • Safety Awareness and Accountability - Ability to identify and correct conditions that affect employee safety, be responsible for personal safety and safety of others, adhere to company policies and procedures.
  • Time Management - Ability to utilize the available time to organize and complete work within given deadlines.
  • Ability to maintain positive work atmosphere by communicating effectively with clients, management, peers, and subordinates.


Physical Demands:

N (Not Applicable) - Activity is not applicable to this occupation

O (Occasionally) - Occupation requires this activity up to 33% of the time (0-2.5+hrs/day)

F (Frequently) - Occupation requires this activity from 33% - 66% of the time (2.5-5.5+ hrs/day)

C (Constantly) - Occupation requires this activity more than 66% of the time (5.5+ hrs/day)


Stand – O, Walk – O, Sit – O, Handling/Fingering – O, Reaching Outward – O, Reaching Above Shoulder – O, Climb – N, Crawl – N, Squat or Kneel –O, Bend – O, Working at the computer - O


10 lbs or Less, O

11 – 20 lbs, O

21 – 50 lbs, O

51 – 100 lbs, N

Over 100 lbs, N


12 lbs or Less, O

13-25 lbs, O

26-40 lbs, O

41-100 lbs, N


Other Physical Requirements

Vision (Near, Distance)

Sense of Sound (i.e. Machinery/tractor sounds)

Sense of Touch

Sense of Smell (Ability to identify healthy and unhealthy wine aromas)

Sense of Taste (Ability to identify healthy and unhealthy wine flavors)

Ability to wear Personal Protective Equipment (PPE) (Steel toe boots, safety glasses, respirator, safety fall harness)


Work Environment: While performing the duties of this job, the employee is frequently exposed to wet and/or humid conditions, moving mechanical parts, and outside weather conditions.  The employee is occasionally exposed to high, precarious places; fumes or airborne particles; toxic or caustic chemicals; risk of electrical shock; and vibration.  The noise level in the work environment is frequently loud.  Employee works around dangerous, automatic machinery and tractors


Other: (Includes licenses, certificates, age, etc.)

  • Able to complete in house certification training to operate a forklift and tractors.
  • Valid U.S. Driver’s License and clean DMV record required (if applicable)
  • Pesticide Applicators Certificate or higher
  • English proficiency
  • Spanish skills preferred
  • Wine knowledge preferred


Safety Statement

All employees shall follow safe practices according to the Injury and Illness Prevention Policy (IIPP), render every possible aid to safe operations, and report all unsafe conditions or practices immediately to any management employee or People Operations.




People Operations Signature: __________________________ Date: ______________

Supervisor Signature: __________________________ Date: ______________

Employee Signature: __________________________ Date: ______________

The above information is representative of the work performed in this position, however it is not all-inclusive.  The omission of a specific duty or responsibility does not exclude it from the position if the work is similar or related to the essential duties and responsibilities.

Posted: May 20, 2022