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Assistant Operator Jobs in Modesto, CA (NOW HIRING)

CalPortland

Terminal Operator

Stockton, CA · On-site

$25 - $27/hr

Job Summary The Terminal Operator will be responsible for operating equipment to load and unload ... accurate records * Assist in keeping terminal and associated buildings clean * Follow all ...

Kagome Inc.

Bin Dump Operator III

Los Banos, CA

CIP and sanitation documentation and safe use of chemicals and concentrations of usage. Assist with ... Assists the Dump Operator I/II and Batch Operator or Batch Assistant with dumping of tomato bins ...

CRH

Equipment Operator

Tracy, CA · On-site

$21 - $25/hr

Detect and report any equipment malfunctions and quality issues to Plant Supervisor * Assist in ... At least 2 years of experience operating similar equipment * High school diploma or GED, or ...

Dollar Tree

Equipment Operator

Stockton, CA · On-site

$24/hr

Equipment Operator- High Reach Lift 1st shift: Monday-Friday 6:00am-2:30pm (overtime as business ... RF) devices or Personal Data Assistant (PDA) units as applicable. Principal Duties ...

Dollartree

Equipment Operator

Stockton, CA · On-site

$24/hr

Equipment Operator- High Reach Lift 1st shift: Monday-Friday 6:00am-2:30pm (overtime as business ... RF) devices or Personal Data Assistant (PDA) units as applicable. Principal Duties ...

Pratt Industries

Extruder Operator

Stockton, CA

$17.75 - $22.25/hr

Complete or assist with roll changes on the machine as needed throughout the shift. * Constantly ... Train and assist other extrusion Machine Operators with job duties on the machine, downtime, setup ...

Pratt Industries

Extruder Operator

Stockton, CA · On-site

$17.75 - $22.25/hr

Complete or assist with roll changes on the machine as needed throughout the shift. * Constantly ... Train and assist other extrusion Machine Operators with job duties on the machine, downtime, setup ...

Dameron Hospital

RN, First Assistant

Stockton, CA · On-site

$51.52 - $74.22/hr

Organizes and facilitates the patient while in the Operating Room (OR). Coordinates the overall care of patient between surgeon, anesthesiologist and room staff. Functions as a first assistant during ...

Gehl Food & Beverage

UF Evaporator Operator

Lathrop, CA · On-site

$25 - $33.75/hr

Description Now Hiring: UF Evaporator Operator | 3rd Shift Shift/Schedule : 6:00PM - 6:30AM ... Complete basic preventive maintenance, minor repairs, and work orders. * Assist maintenance ...

Gehl Food & Beverage

UF Evaporator Operator

Lathrop, CA · On-site

$25 - $33.75/hr

UF Evaporator Operator | 3rd Shift Shift/Schedule : 6:00PM - 6:30AM | Alternative Work Schedule Pay ... Complete basic preventive maintenance, minor repairs, and work orders. * Assist maintenance ...

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All JobsOperator JobsAssistant Operator JobsAssistant Operator Jobs in Modesto, CA

Assistant Operator information

See Modesto, CA salary details

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$32

How much do assistant operator jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for assistant operator in Modesto, CA is $20.91, according to ZipRecruiter salary data. Most workers in this role earn between $16.25 and $23.61 per hour, depending on experience, location, and employer.

What is an assistant operator?

Assistant Operators are entry-level professionals who support the operation of machinery or equipment in industries such as manufacturing, energy, or logistics. They work under the supervision of senior operators to help monitor processes, perform basic maintenance, and ensure safety protocols are followed. Their responsibilities may include setting up machines, loading materials, inspecting products, and reporting any issues to supervisors. Assistant Operators play a key role in maintaining efficient production and minimizing downtime. This position is often a stepping stone to more advanced operator roles.

What are the key skills and qualifications needed to thrive as an assistant operator, and why are they important?

To thrive as an Assistant Operator, you need a basic understanding of machinery operation, safety protocols, and often a high school diploma or equivalent. Familiarity with industrial equipment, control panels, and sometimes certifications like OSHA safety training are typically required. Attention to detail, reliability, and good teamwork skills help you excel in supporting smooth operations. These skills ensure safe, efficient production processes and help maintain workplace safety and productivity.

What are some common challenges assistant operators face during shift changes, and how can they be managed effectively?

Assistant Operators often encounter challenges during shift changes, such as incomplete handovers or miscommunication about ongoing tasks. To manage these effectively, it’s important to follow standardized handover procedures, maintain accurate and up-to-date logs, and communicate proactively with both outgoing and incoming team members. Building strong teamwork and attention to detail helps ensure a smooth transition and minimizes operational disruptions.

What is the difference between Assistant Operator vs Machine Operator?

AspectAssistant OperatorMachine Operator
CredentialsHigh school diploma, on-the-job trainingHigh school diploma, technical certification often preferred
Work EnvironmentAssists in setup, monitoring, and maintenance of machineryOperates machinery directly, responsible for production output
Industry UsageCommon in manufacturing, construction, and industrial plantsPrimarily in manufacturing, processing, and production facilities

Assistant Operators support Machine Operators by preparing equipment and monitoring processes, while Machine Operators handle the direct operation of machinery. Both roles require similar credentials and are vital in industrial settings, but Machine Operators have more responsibility for operating equipment independently.

Which assistant operator job pays the most?

The highest-paying assistant operator roles are often found in industries such as oil and gas, manufacturing, or power generation, where specialized skills and certifications like OSHA training or technical licenses are required. Salaries can vary based on experience, location, and industry, with some positions offering significantly higher compensation due to the complexity and risk involved.

What are the most commonly searched types of Operator jobs in Modesto, CA?

The most popular types of Operator jobs in Modesto, CA are:

What cities near Modesto, CA are hiring for Assistant Operator jobs?

Cities near Modesto, CA with the most Assistant Operator job openings:

Assistant Operator jobs near you
Infographic showing various Assistant Operator job openings in Modesto, CA as of August 2026, with employment types broken down into 1% As Needed, 71% Full Time, 25% Part Time, 1% Temporary, and 2% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $43,489 per year, or $20.9 per hour.

Terminal Operator

CalPortland

Stockton, CA • On-site

$25 - $27/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 14 days ago

CalPortland rating

7.5

Company rating: 7.5 out of 10

Based on 28 frontline employees who took The Breakroom Quiz

Job description

Job Summary

The Terminal Operator will be responsible for operating equipment to load and unload cement; order taking and tracking; inventory tracking and reporting, and performance of maintenance activities on equipment.

Benefits

At CalPortland, we’re proud to offer a comprehensive, competitive benefits package that provides health and financial support to our most important resources: our employees.  Your benefits are an important part of your overall compensation at CalPortland. That’s why we give you a wide range of benefits to choose from.  All regular full time employees may enroll in a variety of health and welfare plans including medical, dental and vision plans.  Other benefits include life insurance, disability coverage, employee assistance program, and retirement program.  The company also has a variety of voluntary benefits for employees to choose from.

Compensation

$25.00 - $27.00 /hour

Responsibilities
  • Loading and unloading cement utilizing a rail car mover, front end loader, and computer equipment in a safe and efficient manner
  • Accurately and courteously take orders from customers over the phone
  • Manually track inventory and provide reports as required
  • Perform preventative and regular maintenance on all equipment, including troubleshooting and maintaining accurate records
  • Assist in keeping terminal and associated buildings clean
  • Follow all CalPortland and WorkSafe safety rules and procedures
  • Complete daily checks on all tickets received and shipped
  • Communicate in a professional and effective manner with co-workers, customers, and anyone else while performing the job
  • Perform other duties as necessary and assigned
Education

High school diploma/GED; Bachelor’s degree preferred

Requirements/Qualifications
  • Computer skills including Excel, Word, SAP, and HMI systems
  • Mechanical knowledge: experience with oil changes, equipment inspections, belt alignments, and preventive maintenance inspections
  • Clearly and accurately communicate both verbally and in writing
  • Able to meet physical requirements of the job which includes climbing, stooping, bending and lifting to 50 pounds
  • Able to read, write, and speak in English
  • Must be self-directed and able to work with little or no supervision, as well as part of a team

Preferred:

Welding Skills

Conditions of Employment

Successful candidate must submit to post-offer pre-employment physical examination, drug/alcohol screen, and background check. Some positions require FMCSA regulated on-going drug and alcohol testing.

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What CalPortland employees say

Pay

Benefits

Hours and flexibility

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