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Refinery Process Operator Jobs in California (NOW HIRING)

Ineos

Process Technician

Carson, CA · On-site

Preferred candidates would have 2 or more years directly related experience as an Operator in a chemical plant, refinery, or gas processing plant OR have successfully completed a 2-year Associate ...

GRAPEVINE OPERATING COMPANY LLC

Operator I

Bakersfield, CA · On-site

$36.80 - $49.99/hr

Monitor and operate process and utility units, tank farms/logistics utilizing a wide range of ... High school diploma or GED required * 5 year minimum experience in refining or chemical plant ...

Clean Harbors

Forklift Operator

San Jose, CA

$24/hr

We collect over 200 million gallons of used motor oil each year and we have the largest re-refinery ... Ensures Health and Safety is the number one goal by following policies, processes, and acting in a ...

Clean Harbors

Forklift Operator

San Jose, CA · On-site

$24/hr

We collect over 200 million gallons of used motor oil each year and we have the largest re-refinery ... Ensures Health and Safety is the number one goal by following policies, processes, and acting in a ...

Clean Harbors

Forklift Operator

San Jose, CA · On-site

$16.59 - $33.17/hr

Ensures Health and Safety is the number one goal by following policies, processes, and acting in a ... We collect over 200 million gallons of used motor oil each year and we have the largest re-refinery ...

CleanHarbors

Forklift Operator

San Jose, CA · On-site

$24/hr

We collect over 200 million gallons of used motor oil each year and we have the largest re-refinery ... Ensures Health and Safety is the number one goal by following policies, processes, and acting in a ...

NEOTech

Process Engineer III (25408)

Carlsbad, CA · On-site

$105K - $115K/yr

Developing and refine LTCC fabrication processes including * Green tape handling * Via punching and ... Establish/Update process document standard operating procedures (SOPs). Essential Duties and ...

NEOTECH

Process Engineer III (25408)

Carlsbad, CA · On-site

Developing and refine LTCC fabrication processes including * Green tape handling * Via punching and ... Establish/Update process document standard operating procedures (SOPs). Essential Duties and ...

Semiserve

Control Room Operator

Bakersfield, CA

$150/day

Renewable Diesel Refining Experience preferred. The Operator will support current plant operations ... Monitor and operate process and utility units, tank farms/logistics utilizing a wide range of ...

Veolia

Operator I

Arvin, CA

The Operator I operates and maintains sludge, dewatering treatment, processing, disposal and testing equipment in refinery/industrial facility to purify water to meet customer specifications. Primary ...

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All JobsRefinery Process Operator JobsRefinery Process Operator Jobs in California

Refinery Process Operator information

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How much do refinery process operator jobs pay per hour?

As of Jun 24, 2026, the average hourly pay for refinery process operator in California is $20.87, according to ZipRecruiter salary data. Most workers in this role earn between $18.03 and $22.79 per hour, depending on experience, location, and employer.

How hard is it to become a refinery operator?

Becoming a refinery process operator typically requires a high school diploma or equivalent, along with on-the-job training or technical schooling. Many operators learn through apprenticeships or company training programs, and obtaining certifications such as OSHA safety training can be beneficial. The role demands technical skills, attention to safety protocols, and the ability to work in a demanding environment, but it is generally accessible with the right training and experience.

What are Refinery Process Operators?

Refinery Process Operators are skilled professionals responsible for controlling and monitoring the machinery and equipment in oil refineries. They oversee the refining process, ensuring that crude oil is converted into usable products like gasoline, diesel, and jet fuel efficiently and safely. Their duties include adjusting controls, conducting inspections, troubleshooting issues, and maintaining safety standards. Refinery Process Operators play a critical role in preventing accidents and ensuring the smooth operation of the facility.

What does a process operator do in a refinery?

A refinery process operator monitors and controls the equipment and processes involved in refining crude oil into products like gasoline, diesel, and jet fuel. They interpret data from gauges and control systems, perform routine maintenance, and ensure safety protocols are followed to maintain efficient operations.

How much do refinery operators make in the US?

Refinery process operators in the US typically earn a median annual salary of around $70,000 to $80,000, with experienced workers and those in higher-cost-of-living areas earning over $100,000. Salaries can vary based on experience, certifications, and the complexity of the refinery environment.

What are some common challenges faced by Refinery Process Operators, and how can they be managed effectively?

Refinery Process Operators often encounter challenges such as managing unexpected equipment malfunctions, responding to process upsets, and maintaining safety standards in a fast-paced environment. Effective communication with team members and prompt decision-making are crucial for troubleshooting issues and minimizing downtime. Operators typically rely on their training, process control systems, and support from maintenance or engineering teams to resolve problems quickly. Staying proactive with regular monitoring and adhering to safety protocols helps ensure smooth operations and a safe workplace.

Is it hard to get into the refinery?

Becoming a refinery process operator typically requires a high school diploma or equivalent, along with on-the-job training or technical certifications. Entry can be competitive due to the specialized skills involved, such as understanding complex equipment and safety procedures, but opportunities are available for those with relevant technical knowledge and a strong work ethic.

What are the key skills and qualifications needed to thrive as a Refinery Process Operator, and why are they important?

To thrive as a Refinery Process Operator, you need a solid understanding of chemical processes, mechanical systems, and safety protocols, often supported by a high school diploma or associate degree in a technical field. Familiarity with distributed control systems (DCS), process monitoring software, and industry safety certifications like OSHA are typically required. Attention to detail, problem-solving ability, and effective teamwork are essential soft skills for responding to operational issues and maintaining productivity. These skills ensure safe, efficient, and compliant refinery operations in a complex industrial environment.

What is the difference between Refinery Process Operator vs Chemical Plant Operator?

AspectRefinery Process OperatorChemical Plant Operator
CredentialsHigh school diploma or equivalent; certifications in refinery operationsHigh school diploma or equivalent; certifications in chemical processing
Work EnvironmentRefineries, oil processing facilitiesChemical manufacturing plants
Industry UsageOil and gas industryChemical manufacturing industry
Job FunctionsOperate and monitor refining equipment, ensure safety and efficiencyOperate chemical processing equipment, monitor reactions and safety

Refinery Process Operators and Chemical Plant Operators share similar credentials and work environments, often requiring certifications and safety training. While both roles involve operating complex equipment, Refinery Process Operators focus on oil refining processes, whereas Chemical Plant Operators work in chemical manufacturing. Understanding these differences helps job seekers identify the right career path within the processing industries.

What are popular job titles related to Refinery Process Operator jobs in California? For Refinery Process Operator jobs in California, the most frequently searched job titles are:
What job categories do people searching Refinery Process Operator jobs in California look for? The top searched job categories for Refinery Process Operator jobs in California are:
What cities in California are hiring for Refinery Process Operator jobs? Cities in California with the most Refinery Process Operator job openings:
Refinery Process Operator jobs near you
Infographic showing various Refinery Process Operator job openings in California as of June 2026, with employment types broken down into 1% As Needed, 94% Full Time, 4% Part Time, and 1% Temporary. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $43,408 per year, or $20.9 per hour.

Process Technician

Ineos

Carson, CA • On-site

Full-time

Posted 24 days ago

INEOS rating

7.4

Company rating: 7.4 out of 10

Based on 22 frontline employees who took The Breakroom Quiz

55th of 90 rated chemical manufacturers

Job description

Company:INEOS Olefins & Polymers USA

Interested in joining a winning team? A team whose employees are empowered to make a difference?

ALL APPLICANTS ARE REQUIRED TO APPLY ONLINE BY CLICKING HERE: ineos.hirescore.comIMPORTANT NOTICE: The application process requires applying on the ineos.hirescore.com website therefore any applicants who ONLY submit their application on this job board WILL NOT be considered.

Job Title: Process Technician

Location: Carson, CA

Organizational Context & Job Purpose

Organizational Context:

The O&P USA business includes the product lines Ethylene, Propylene, Butadiene, Polypropylene and High Density Polyethylene. Manufacturing sites include Chocolate Bayou Works (Alvin, TX), Battleground Manufacturing Complex (La Porte, TX), and Carson, (Carson, CA), with a division office in League City, TX.The Carson, California plant - located 25 miles south of Los Angeles - began producing polypropylene in 1999. The Carson polypropylene facility is the largest single commodity exporter on the West Coast, and the second largest plastics exporter in the U.S. The Carson plant has the logistical advantage of dispatching products to customers directly from the facility via several delivery modes: railcar, bulk truck and packages. Less than ten miles from the port of Long Beach, the facility generates high-volume export business for INEOS Olefins & Polymers USA.

Purpose of the job:

The Process Technician is responsible for the safe and efficient day-to-day operation of the facilities. The Process Technician operates equipment in production systems, monitors equipment, and obtains routine samples of products. The Process Technician also carries out cleaning, maintenance, and minor repair work in the processing units.

RESPONSIBILITIES AND ACCOUNTABILITIES:

  • Collaborate with Engineering to optimize production, troubleshoot process upsets and equipment problems.

  • Routine, daily monitoring of plant conditions. Monitoring of process indicators/gauges such as temperatures, pressures, levels, and inventories.

  • Make observations in unit for any leaks or equipment failures that may create a hazard or cause inefficiency.

  • Understand and execute daily tasks in accordance with Operator Expectations

  • Participate in various shift meetings (i.e. shift turn over, morning meetings, process optimization meetings, etc.)

  • Perform inspections and maintenance of rotating equipment such as pumps and compressors. Ensure all required preventive maintenance is complete.

  • Generate electronic work requests for required maintenance repairs.

  • Required to maintain a constant awareness of personal safety and the safety of other personnel.

  • Prepare equipment for maintenance work and assist maintenance personnel in plant repairs including removing and installing valves, pumps, control units, etc. Safe isolation and preparation of equipment for maintenance repair.

  • Must be able to work with others is a positive and professional manner to resolve unit issues.

  • Installing and removing piping systems, cut-off valves, etc., as required, using proper tools.

  • Perform quality-related jobs such as investigating, documenting and providing corrective action.

  • Read and interpret P&IDs.

  • Ability to operate process using plant Distributive Control System (DCS).

  • Computer tasks up to 2 hours per day.

  • Review policies and procedures annually or per required frequency if different.

  • Co-train fellow process technicians per training and qualification requirements.

  • Assists in performing safety reviews, SURF observations, safety audits, and incident investigations.

  • Assist in emergency response situations.

QUALIFICATIONS:

  • High School Diploma or GED equivalent required.

  • Preferred candidates would have 2 or more years directly related experience as an Operator in a chemical plant, refinery, or gas processing plant OR have successfully completed a 2-year Associate's Degree in Process Technology, Operations.

  • Experience operating a Distributed Control System (DCS) is a plus.

  • Computer Skills: E-mail, SAP, Word, Excel and PowerPoint experience preferred.

  • Experience using Personal Protective Equipment (PPE) preferred.

  • Experience following safety procedures, including OSHA standards preferred.

  • Candidates will be administered a battery of tests to demonstrate adequate skills and knowledge for the job.

PHYSICAL REQUIREMENTS:

  • Positions are on shift work, working 12-hour shifts, rotating between days and nights (including weekends) with some overtime required.

  • Working holidays and working overtime to provide shift coverage required.

  • Willing and able to work in a safe but sometimes extreme environment. For example, parts of the plant may be accessible only via narrow platforms and walkways, tall ladders and/or steep stairs. Conditions will sometimes be hot, cold, loud, elevated, confined, smelly and/or dirty.

  • Willing and able to perform physically demanding work which may include standing and/or walking for long periods of time, lifting and carrying heavy objects (e.g., fire extinguisher) and entering confined spaces.

  • Candidates will be administered a battery of tests to demonstrate adequate physical ability to safely perform all aspects of the job.

  • Must be able to lift and carry up to 50 lbs, exert up to 50 lbs of force occasionally, up to 30 lbs of force frequently, and up to 10 lbs of force constantly to move objects.

  • Must have ability to see written documents, computer screens and to adjust focus.

  • Must be able to hear/perceive nature of sounds at normal speaking levels with or without correction. Must have the ability to receive detailed information through oral communication and make discriminations in sound with and without protective hearing as required.

ALL APPLICANTS ARE REQUIRED TO APPLY ONLINE BY CLICKING HERE: https://ineos.hirescore.com/ IMPORTANT NOTICE: The application process requires applying on the https://ineos.hirescore.com/ website therefore any applicants who ONLY submit their application on this job board WILL NOT be considered.

Our culture is one of honesty and integrity with an emphasis on safety, health and environmental performance. On our team, people are acknowledged for embracing new practices that help create real value for customers.

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