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

SUPERVISION RECEIVED AND EXERCISED Receives general direction from the Senior Plant Operator or a ... Keeps logs and records of water samples and machinery operation. Ensures adherence to all health ...

Plant Operator I/II

Mariposa, CA · On-site

$4.87K - $6.21K/mo

SUPERVISION RECEIVED AND EXERCISED Receives general direction from the Senior Plant Operator or a ... Keeps logs and records of water samples and machinery operation. Ensures adherence to all health ...

Senior Machine Operator information

See Merced, CA salary details

$26.4K

$84.8K

$172.7K

How much do senior machine operator jobs pay per year?

As of May 29, 2026, the average yearly pay for senior machine operator in Merced, CA is $84,785.00, according to ZipRecruiter salary data. Most workers in this role earn between $43,800.00 and $108,800.00 per year, depending on experience, location, and employer.

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

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 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 are Senior Machine Operators?

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 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 are the most commonly searched types of Machine Operator jobs in Merced, CA? The most popular types of Machine Operator jobs in Merced, CA are:
What are popular job titles related to Senior Machine Operator jobs in Merced, CA? For Senior Machine Operator jobs in Merced, CA, the most frequently searched job titles are:
What cities near Merced, CA are hiring for Senior Machine Operator jobs? Cities near Merced, CA with the most Senior Machine Operator job openings:
Infographic showing various Senior Machine Operator job openings in Merced, CA as of May 2026, with employment types broken down into 66% Full Time, 30% Part Time, 2% Temporary, 1% Contract, and 1% Nights. Highlights an 83% Physical, 13% Hybrid, and 4% Remote job distribution, with an average salary of $84,785 per year, or $40.8 per hour.
Plant Operator I/II

$4.87K - $6.21K/mo

Full-time

Posted 2 days ago


Job description

Description There is currently one (1) full-time vacancy in the Public Works Department. Only online applications will be accepted. DEFINITION To plan, coordinate, and participate in the safe and sanitary maintenance and operation of County special districts facilities, including water and wastewater systems; to ensure State and County compliance with related laws, regulations and standards; and to perform related duties and responsibilities as required.

DISTINGUISHING CHARACTERISTICS The Plant Operator I/II is a flexibly-staffed class series. Positions allocated to the I/II level are normally filled at the I level. Advancement from the I to the II level is at the discretion of the appointing authority, provided that the incumbent meets the minimum qualifications and demonstrates the ability to independently perform the full scope of the assigned duties.

Incumbents in the Plant Operator I level usually perform most of the duties required of the position at the Plant Operator II level, but are not expected to function with the same amount of knowledge or skill level. Assignments are limited in scope and are performed within a framework of established procedures with close supervision. The Plant Operator II is the journey level classification in the Plant Operator series.

Incumbents are expected to complete assignments with minimal supervision and are given increased responsibility and latitude of judgment to complete assignments. SUPERVISION RECEIVED AND EXERCISED Receives general direction from the Senior Plant Operator or a higher level management position. Examples of Duties EXAMPLES OF ESSENTIAL FUNCTIONS Depending upon assignment, duties may include, but are not limited to, the following: Monitors the various instruments and general mechanical equipment involved in the operation of a water and wastewater treatment plant; takes appropriate action to remedy adverse situations.

Take readings of gauges and temperatures and record readings. Read meters and gauges and regulate the flow of water and wastewater. Test the treatment process for dissolved oxygen levels, pH and temperature.

Performs engineering calculations such as determine chemical dosage requirements and pump sizing. Inspect plant facilities and related areas to ensure proper appearance and to determine maintenance, improvement and repair needs. Provides advice and recommendations to supervisor regarding facilities; provides technical guidance and direction to employees in maintenance work methods, materials, standards and operations.

Keeps logs and records of water samples and machinery operation. Ensures adherence to all health and safety standards. Receives and responds to inquiries, requests for assistance, concerns and complaints regarding plant policies, programs and projects.

Performs related duties as assigned. Minimum Qualifications Education: High school or GED equivalency is required. Experience: Increasingly responsible experience in facilities maintenance or a related field that would provide the required knowledge, skills, and abilities is qualifying.

Additional Requirements: Plant Operator I Enrollment in certification-required education courses necessary to sit for the certification exam and the ability to obtain a Grade I Wastewater Treatment Plant Operator certificate or Grade I Water Treatment Operator (T1) certificate within eighteen (18) months of appointment. Plant Operator II Possession of a Grade II Wastewater Treatment Plant Operator certificate, a Grade I Water Treatment Operator (T1), and a Grade I Water Distribution Operator (D1) certificate issued by the State of California. Plant Operator I and II Possession of a valid California driver's license.

Under certain circumstances, the Human Resources Director may accept a valid driver's license from another State if applicant acknowledges his/her intent to acquire a California driver's license within three months by signing an acknowledgement form.