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Assistant Plant Operator Jobs in California (NOW HIRING)

The Assistant Plant Manager will be responsible for assisting the Plant Manager (PM) with all ... Experience operating heavy machinery (forklifts, excavators, loaders, bobcats) preferred. * Capable ...

... Assist in performing daily/monthly site and equipment safety inspections. Work towards constant ... Some plant maintenance and Loader Operator experience. DESIRED QUALIFICATIONS EDUCATION: Some ...

The Assistant Plant Manager will be responsible for assisting the Plant Manager (PM) with all ... Experience operating heavy machinery (forklifts, excavators, loaders, bobcats) preferred. * Capable ...

Assistant Plant Manager

Vernon, CA ยท On-site

$100 - $125/hr

The Assistant Plant Manager will be responsible for assisting the Plant Manager (PM) with all ... Experience operating heavy machinery (forklifts, excavators, loaders, bobcats) preferred. * Capable ...

The Assistant Plant Manager will be responsible for assisting the Plant Manager (PM) with all ... Experience operating heavy machinery (forklifts, excavators, loaders, bobcats) preferred. * Capable ...

Power Plant Operations Manager

Stockton, CA ยท On-site

$112K - $168K/yr

Prepares and continually evaluates the operating department's budgets and/or makes recommendations to the Assistant Plant Manager relative to optimize Operations cost effectiveness, work quality ...

Plant Operator

Santa Margarita, CA ยท On-site

$34 - $39/hr

The Operator is expected to possess advanced troubleshooting skills, perform preventative and ... * Assist in the training and development of Laborers, sharing technical knowledge of plant systems.

The Operator is expected to possess advanced troubleshooting skills, perform preventative and ... * Assist in the training and development of Laborers, sharing technical knowledge of plant systems.

The Operator is expected to possess advanced troubleshooting skills, perform preventative and ... * Assist in the training and development of Laborers, sharing technical knowledge of plant systems.

Power Plant Operations Manager

Stockton, CA ยท On-site

$112K - $168K/yr

Prepares and continually evaluates the operating department's budgets and/or makes recommendations to the Assistant Plant Manager relative to optimize Operations cost effectiveness, work quality ...

Power Plant Operators are responsible for the safe, efficient, and reliable operation of power ... Operators also perform maintenance, repairs, and system improvements, assist in developing standard ...

"OUR PEOPLE ARE OUR STRATEGY" We are growing and in need of a Plant Operator for our VSS Emultech ... asphalt. * Assist in railcar steaming and unloading operations. * Basic housekeeping duties ...

"OUR PEOPLE ARE OUR STRATEGY" We are growing and in need of a Plant Operator for our VSS Emultech ... asphalt. * Assist in railcar steaming and unloading operations. * Basic housekeeping duties ...

Plant Operator

Redding, CA ยท On-site

$22 - $24/hr

"OUR PEOPLEAREOUR STRATEGY" We are growing and in need of a Plant Operator for our VSS Emultech ... asphalt. * Assist in railcar steaming and unloading operations. * Basic housekeeping duties ...

"OUR PEOPLE ARE OUR STRATEGY" We are growing and in need of a Plant Operator for our VSS Emultech ... asphalt. * Assist in railcar steaming and unloading operations. * Basic housekeeping duties ...

"OUR PEOPLE ARE OUR STRATEGY" We are growing and in need of a Plant Operator for our VSS Emultech ... asphalt. * Assist in railcar steaming and unloading operations. * Basic housekeeping duties ...

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Showing results 1-20

Assistant Plant Operator information

See California salary details

$13

$22

$39

How much do assistant plant operator jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for assistant plant operator in California is $22.07, according to ZipRecruiter salary data. Most workers in this role earn between $16.15 and $24.90 per hour, depending on experience, location, and employer.

What is an assistant plant operator?

Assistant plant operators are entry-level professionals who support the day-to-day operations of industrial plants such as power stations, water treatment facilities, or manufacturing plants. They work under the supervision of senior operators to monitor equipment, perform routine maintenance, and ensure safety procedures are followed. Their responsibilities also include recording data, troubleshooting minor issues, and assisting in emergency situations to maintain efficient and safe plant operations.

What are the key skills and qualifications needed to thrive as an assistant plant operator?

To thrive as an Assistant Plant Operator, you need a solid understanding of mechanical systems, basic process operations, and often a high school diploma or technical certification. Familiarity with control systems, SCADA software, and safety protocols is typically required on the job. Attention to detail, strong teamwork, and effective communication are important soft skills for this role. These abilities ensure the safe, efficient, and reliable operation of plant equipment in a team-oriented environment.

What are some common challenges assistant plant operators face during shift work, and how can they effectively manage them?

Assistant Plant Operators often work in rotating shifts, which can be physically and mentally demanding due to irregular hours and the need for constant vigilance. Managing fatigue, staying alert during night shifts, and maintaining clear communication with team members are common challenges. To effectively manage these, it's important to establish consistent sleep routines, stay hydrated, and use established handover protocols to ensure seamless operations between shifts. Building strong teamwork skills and being proactive in identifying and addressing equipment issues also contribute to success in this role.

What is the difference between Assistant Plant Operator vs Plant Operator?

AspectAssistant Plant OperatorPlant Operator
CertificationsTypically requires a high school diploma and basic technical trainingRequires additional certifications or licenses, such as a state-specific operator license
Work EnvironmentAssists in plant operations, often working under supervision in industrial or power plant settingsManages daily plant operations independently, overseeing equipment and safety protocols
ResponsibilitiesSupports plant activities, performs routine maintenance, monitors equipmentOperates and controls plant machinery, ensures safety and efficiency, troubleshooting

The Assistant Plant Operator typically supports and assists the Plant Operator in daily tasks, requiring basic certifications and working under supervision. The Plant Operator holds more responsibility, managing plant operations independently with advanced certifications. Both roles are essential in industrial and power plant environments, but the Plant Operator has a higher level of responsibility and technical expertise.

How to get hired as an assistant plant operator?

To get hired as an assistant plant operator, candidates typically need a high school diploma or equivalent and relevant technical training or experience. Certifications such as a wastewater treatment operator license or safety training can improve job prospects, and familiarity with plant equipment and safety protocols is often required during the hiring process.

What are the most commonly searched types of Plant Operator jobs in California?

The most popular types of Plant Operator jobs in California are:

What cities in California are hiring for Assistant Plant Operator jobs?

Cities in California with the most Assistant Plant Operator job openings:

Infographic showing various Assistant Plant Operator job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $45,911 per year, or $22.1 per hour.

HYDROELECTRIC PLANT OPERATOR

Department of Water Resources

Sacramento, CA โ€ข On-site

$8.3K - $10K/mo

Full-time

Posted 5 days ago


Job description

Operates pumps, generators and associated auxiliary equipment, aqueduct facilities, reservoirs and turnout from plants, control centers and remote sites either directly or by use of remote-control systems; and monitors or operates digital process control system for optimal individual plant or system wide operation. Performs high and low voltage switching. Incumbent may work alone in plants and Area Control Center and drive into areas away from frequently traveled roadways. Keeps log records of operations and readings; implements power, water, and pumping schedules and makes power and water calculations as required; prepares and places clearances, verifies protection, and issues clearances; is familiar with standing operating orders, Emergency Action Plan, and operating safety procedures in order to take prompt and appropriate action to meet any plant or division operating emergency. Maintains an assigned cleaning station. Carries out specific duties or miscellaneous assignments as directed by the Senior HEP Operator. Perform minor maintenance including, but not limited to, transferring, centrifuging/filtering of lubricating, hydraulic and insulating oil, adjustment of main unit auxiliary devices, installation and removal of stop logs, operating bridge and gantry cranes, revamping, and replacement of low voltage control fuses. May be required to assist Plant Maintenance. Assist in training Apprentices in the manual and remote operations of plants and facilities. Work is on-site to support the State Water Project.
You will find additional information about the job in the Duty Statement .
Minimum Requirements You will find the Minimum Requirements in the Class Specification.
  • HYDROELECTRIC PLANT OPERATOR
Additional Documents
  • Job Application Package Checklist
  • Duty Statement

Position Details Job Code #:
JC-529456
Position #(s):
849-230-6463-080
849-230-6463-180
Working Title:
HYDROELECTRIC PLANT OPERATOR
Classification:
HYDROELECTRIC PLANT OPERATOR $8,372.00 - $10,792.00 A
New to State candidates will be hired into the minimum salary of the classification or minimum of alternate range when applicable.
# of Positions:
2
Work Location:
Butte County
Telework:
In Office
Job Type:
Permanent, Full Time
Department Information
Operations & Maintenance/Oroville Field Division/Operations Branch/Plant Operations Section, Oroville
Department of Water Resources (DWR) was established in 1956 by the California State Legislature. We manage California's water resources, systems, and infrastructure, including the State Water Project, in a responsible sustainable way.
At DWR, we are embedding climate change response into every project we undertake. We have set standards to help evaluate how each project incorporates climate resilience principles and ensure consistency across the Department. Our mission is to sustainably manage the water resources of California, in cooperation with other agencies, to benefit the state's people and protect, restore, and enhance the natural and human environments.
DWR also strives to create a trusting and welcoming workplace where employees embrace diverse viewpoints and treat each other with civility and respect. An important component of DWR's equal employment opportunity program centers around justice, equity, diversity, and inclusion.
Department Website: https://water.ca.gov/
Free virtual career consultation services including one-on-one DWR career consultations, application/resume review, tips for applying, and mock interviews, provided by DWR's Recruitment and Workforce Planning section can now be scheduled via https://water.ca.gov/About/Careers.
Special Requirements
Position is designated sensitive and subject to substance abuse testing. Employee is required to successfully complete all safety training related to the functions of the job. This position has frequent access to areas designated as containing critical cyber assets in accordance with North American Electric Reliability Corporation (NERC) reliability standards and therefore a satisfactory background check is required prior to appointment and every seven years thereafter.
Application Instructions
Completed applications and all required documents must be received or postmarked by the Final Filing Date in order to be considered. Dates printed on Mobile Bar Codes, such as the Quick Response (QR) Codes available at the USPS, are not considered Postmark dates for the purpose of determining timely filing of an application.
Final Filing Date: 9/14/2026
Who May Apply
Individuals who are currently in the classification, eligible for lateral transfer, eligible for reinstatement, have list or LEAP eligibility, are in the process of obtaining list eligibility, or have SROA and/or Surplus eligibility (please attach your letter, if available). SROA and Surplus candidates are given priority; therefore, individuals with other eligibility may be considered in the event no SROA or Surplus candidates apply. Applications will be screened and only the most qualified applicants will be selected to move forward in the selection process. Applicants must meet the Minimum Qualifications stated in the Classification Specification(s).
How To Apply
Complete Application Packages (including your Examination/Employment Application (STD 678) and applicable or required documents) must be submitted to apply for this Job Posting. Application Packages may be submitted electronically through your CalCareer Account at www.CalCareers.ca.gov. When submitting your application in hard copy, a completed copy of the Application Package listing must be included. If you choose to not apply electronically, a hard copy application package may be submitted through an alternative method listed below:
Address for Mailing Application Packages
You may submit your application and any applicable or required documents to:
Department of Water Resources
Mailing Address
Attn: Division of Human Resources
P.O. Box 1079
Sacramento , CA 95812
Address for Drop-Off Application Packages
You may drop off your application and any applicable or required documents at:
Department of Water Resources
Submit in Person
Certification Desk
715 P Street, 7th floor
Sacramento , CA 95814
08:00 AM - 04:30 PM
Required Application Package Documents
The following items are required to be submitted with your application. Applicants who do not submit the required items timely may not be considered for this job:
  • Current version of the State Examination/Employment Application STD Form 678 (when not applying electronically), or the Electronic State Employment Application through your Applicant Account at www.CalCareers.ca.gov. All Experience and Education relating to the Minimum Qualifications listed on the Classification Specification should be included to demonstrate how you meet the Minimum Qualifications for the position.
  • Resume is required and must be included.
Applicants requiring reasonable accommodations for the hiring interview process must request the necessary accommodations if scheduled for a hiring interview. The request should be made at the time of contact to schedule the interview. Questions regarding reasonable accommodations may be directed to the EEO contact listed on this job posting.
Desirable Qualifications In addition to evaluating each candidate's relative ability, as demonstrated by quality and breadth of experience, the following factors will provide the basis for competitively evaluating each candidate:
Experience with high voltage switching (230kV) & clearance placement (lock-out-tag-out) for personnel safety, mechanical operations experience in any of the following fields: Commercial Fossil/Hydro/Nuclear utility or pumped storage operations, or Military, Naval, or Merchant Marine steam propulsion/generating plant operations, Experience with Supervisory Control and Data Acquisition (SCADA) systems & common business software applications (Excel, Word, Adobe. Etc.), Experienced in the Operation of Flood Control Gates and Release Structures in Water Operations. Ability to work well with others, use independent judgment, strong oral and written communications skills.
Benefits
Click here to read about the outstanding benefits offered to eligible employees.
Personal Leave Program 2025: Effective July 1, 2025, state employees are subject to temporary wage reductions in exchange for Personal Leave Program (PLP) accruals. The specific rate and hours earned were negotiated and agreed upon by each bargaining unit. The actual monetary impact of these temporary reductions can vary based on your bargaining unit and/or federal and state tax withholdings. For additional information please visit Human Resources Manual - CalHR
Contact Information
The Hiring Unit Contact is available to answer questions regarding the position or application process.
Hiring Unit Contact:
Kari Woodruff
(530) 534-2321
karyn.woodruff@water.ca.gov
Please direct requests for Reasonable Accommodations to the interview scheduler at the time the interview is being scheduled. You may direct any additional questions regarding Reasonable Accommodations or Equal Employment Opportunity for this position(s) to the Department's EEO Office.
EEO Contact:
Office of Civil Rights
(916) 653-6952
civilrights@water.ca.gov
California Relay Service: 1-800-735-2929 (TTY), 1-800-735-2922 (Voice) TTY is a Telecommunications Device for the Deaf, and is reachable only from phones equipped with a TTY Device.
Special Instructions
To be considered, submit a completed State application (STD. 678) and resume. Please reference SAP Position #50000241, 50001920 and Job Control # 529456 in the "examination(s) or job title(s) for which you are applying" section of your application.
The follow basis of eligibility will be considered: List eligibility, transfer, LEAP, reinstatement, and SROA/Surplus.
Resumes, cover letters, and/or other attachments will not be accepted in lieu of a completed application. The hiring unit will receive only the documents specified in the Required Application Package Documents section.
Click here to complete DWR's Recruitment Survey . This survey is for research purpose only and will not affect the application status.
Examination/Assessment
For more information about the State hiring process, click here . To learn more about how to get a State job, click here .
List eligibility can be established by taking and passing the examination/assessment.
Click the examination(s)/assessment(s) information link:
HYDROELECTRIC PLANT OPERATOR
Equal Opportunity Employer
The State of California is an equal opportunity employer to all, regardless of age, ancestry, color, disability (mental and physical), exercising the right to family care and medical leave, gender, gender expression, gender identity, genetic information, marital status, medical condition, military or veteran status, national origin, political affiliation, race, religious creed, sex (includes pregnancy, childbirth, breastfeeding and related medical conditions), and sexual orientation.
It is an objective of the State of California to achieve a drug-free work place. Any applicant for state employment will be expected to behave in accordance with this objective because the use of illegal drugs is inconsistent with the law of the State, the rules governing Civil Service, and the special trust placed in public servants.