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Senior Machine Operator Jobs in Rialto, CA (NOW HIRING)

Amazon

Sr. Reg Automation Eng

Jurupa Valley, CA · On-site

$105K - $138K/yr

In this role, you will also develop and implement standard operating procedures, optimal code ... machines, generating reports for improvement purposes. - Communicate with Vendors and senior ...

Envista

Sr. Mechanical Engineer

Pomona, CA · On-site

$121K - $148K/yr

Familiarity with injection molding, rapid prototyping, and CNC programming/machinery required ... Operating Company: Kerr Envista and all Envista Companies are equal opportunity employers that ...

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All JobsMachine Operator JobsSenior Machine Operator JobsSenior Machine Operator Jobs in Rialto, CA

Senior Machine Operator information

See Rialto, CA salary details

$25.1K

$80.5K

$164K

How much do senior machine operator jobs pay per year?

As of Aug 11, 2026, the average yearly pay for senior machine operator in Rialto, CA is $80,510.00, according to ZipRecruiter salary data. Most workers in this role earn between $41,600.00 and $103,300.00 per year, depending on experience, location, and employer.

What is the difference between Senior Machine Operator vs Machine Operator?

AspectSenior Machine OperatorMachine Operator
CredentialsTypically requires more experience and sometimes certifications in specific machineryBasic machine operation certifications or training
Work EnvironmentOversees complex machinery, may supervise othersOperates machinery under supervision or standard procedures
ResponsibilitiesMaintains, troubleshoots, and optimizes equipment; mentors junior staffPerforms routine machine operation tasks

The main difference between a Senior Machine Operator and a Machine Operator lies in experience, responsibilities, and leadership. Senior Machine Operators handle more complex tasks, oversee equipment, and often mentor others, whereas Machine Operators focus on routine operation. Both roles require relevant certifications, but the senior position demands more expertise and experience.

What opportunities for career advancement are available to senior machine operators within manufacturing organizations?

Senior Machine Operators often have several pathways for career growth, including moving into supervisory or team lead roles, such as Production Supervisor or Shift Manager. Many organizations value the technical expertise and leadership skills developed in this position, making it possible to transition into roles that focus on process improvement, quality assurance, or training new operators. Additionally, pursuing certifications in advanced manufacturing technologies or equipment maintenance can open doors to specialized roles, such as Maintenance Technician or Process Engineer. Demonstrating initiative and strong problem-solving abilities can further increase advancement prospects within the company.

What is a senior machine operator?

Senior Machine Operators are experienced professionals responsible for operating, maintaining, and troubleshooting industrial machinery in manufacturing or production settings. They oversee machine performance, ensure safety standards are met, and may supervise junior operators. Their role often includes setting up machines, performing quality checks, and making adjustments to optimize efficiency and product quality. Senior Machine Operators typically have several years of hands-on experience and a strong understanding of mechanical systems.

What are the key skills and qualifications needed to thrive as a senior machine operator?

To thrive as a Senior Machine Operator, you need advanced mechanical aptitude, experience with manufacturing equipment, and often a high school diploma or equivalent with additional technical training. Familiarity with CNC machines, PLC systems, and safety certifications like OSHA are commonly required. Strong attention to detail, problem-solving abilities, and effective teamwork are crucial soft skills for this role. These competencies ensure efficient production, minimize errors, and maintain a safe and productive work environment.
What are popular job titles related to Senior Machine Operator jobs in Rialto, CA? For Senior Machine Operator jobs in Rialto, CA, the most frequently searched job titles are:
What job categories do people searching Senior Machine Operator jobs in Rialto, CA look for? The top searched job categories for Senior Machine Operator jobs in Rialto, CA are:
What cities near Rialto, CA are hiring for Senior Machine Operator jobs? Cities near Rialto, CA with the most Senior Machine Operator job openings:
Senior Machine Operator jobs near you
Infographic showing various Senior Machine Operator job openings in Rialto, CA as of August 2026, with employment types broken down into 50% Full Time, 48% Part Time, 1% Contract, and 1% Nights. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $80,510 per year, or $38.7 per hour.

Maintenance Assistance

Mainplace Senior Living

Orange, CA

$19 - $21/hr

Full-time

Re-posted 29 days ago

Job description

Our senior living community is currently seeking a Maintenance Assistant to join our team of dedicated professionals who want to make a difference in the lives of our residents, their families and our community. We are guided by our CAPLICO Core Values:

Celebration

Accountability

Passion for Learning

Love One Another

Intelligent Risk Taking

Customer Second (Employee First!)

Ownership

If these core values resonate deeply with your own moral compass and you meet the requirements below, then you should apply.

About the Opportunity

The Maintenance Assistant provides ongoing preventative maintenance and resident assistance, building and grounds maintenance, troubleshooting maintenance problems and various related tasks as assigned. Performs most tasks independently with occasional assistance of outside vendor. Is available to respond to maintenance emergencies that may arise outside of regular working hours.

Critical Success Factors

  • Practices good safety awareness and follows safety procedures, including infection control measures where applicable.
  • Ability to be self-supervising and self-motivating. Able to set priorities and complete tasks in a timely manner.
  • Must demonstrate a positive, courteous and respectful attitude to residents, families, staff and visitors.

Minimum Qualifications

  • Prior experience in building maintenance.
  • Must possess knowledge of the following:

    Plumbing, including but not limited to design/mechanics of commodes, plumbing fixtures, drains, discharge lines, hot water heaters, dishwashers, ice machines, etc.

    HVAC, including but not limited to general principles of HVAC and heat pump operation/mechanics, and refrigeration.

    Electricity, including but not limited to wiring, voltage, amperage.

    Mechanics, including but not limited to design/operation of engines.

  • Must possess a valid driver’s license; must have clean driving record with no major violations.

Pay Rate: $19.00-$21.00

We are an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, national origin, disability, veteran status, and other protected characteristics.

The employer for this position is stated in the job posting.  The Pennant Group, Inc. is a holding company of independent operating subsidiaries that provide healthcare services through home health and hospice agencies and senior living communities located throughout the US.  Each of these businesses is operated by a separate, independent operating subsidiary that has its own management, employees and assets.  More information about The Pennant Group, Inc. is available at http://www.pennantgroup.com.