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Quality Control Jobs in Rialto, CA (NOW HIRING)

CalPortland

Quality Control Supervisor

Ontario, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Alta Loma, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Loma Linda, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

San Bernardino, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Lake Elsinore, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Yucaipa, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Moreno Valley, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

San Bernardino, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Anaheim, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Moreno Valley, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Riverside, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Mount Baldy, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Diamond Bar, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Riverside, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Atwood, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

Misfits Market

Quality Control Lead

Walnut, CA · On-site

$1.2K/wk

The Quality Control Lead performs quality checks at all touch-points in the product's journey through the warehouse including inbound, storage, production line, and outbound boxes. They are the first ...

CalPortland

Quality Control Supervisor

San Bernardino, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

Upland, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

CalPortland

Quality Control Supervisor

San Bernardino, CA · On-site

$75K - $100K/yr

The Quality Control Supervisor reports to the Quality Control Manager and carries out duties related to chemical and instrument analysis, including physical testing. Benefits At CalPortland, we're ...

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All JobsQuality Control JobsQuality Control Jobs in Rialto, CA

Quality Control information

See Rialto, CA salary details

$11

$21

$33

How much do quality control jobs pay per hour?

As of Jul 16, 2026, the average hourly pay for quality control in Rialto, CA is $21.53, according to ZipRecruiter salary data. Most workers in this role earn between $17.36 and $24.09 per hour, depending on experience, location, and employer.

What is the job of a quality control?

A quality control professional is responsible for inspecting products or services to ensure they meet specified standards and quality requirements. They perform tests, identify defects, and document issues, often using tools like checklists or testing equipment, to help maintain product consistency and safety.

What jobs pay $500,000 a year in the US?

High-paying jobs that can reach $500,000 annually include executive roles such as CEOs, CFOs, and other C-suite positions, as well as specialized professions like top surgeons, successful entrepreneurs, and certain investment bankers or hedge fund managers. These roles typically require extensive experience, advanced skills, and often involve leadership, high responsibility, or performance-based bonuses.

What is the difference between Quality Control vs Quality Assurance?

AspectQuality ControlQuality Assurance
FocusDetecting defects in products or servicesPreventing defects through process improvements
ActivitiesInspections, testing, samplingProcess audits, standards development
CredentialsOften requires technical training or certifications in testingCertifications like ISO, Six Sigma are common
Work EnvironmentLaboratory, production lines, manufacturingProcess development, documentation, audits

While Quality Control focuses on identifying defects after production, Quality Assurance aims to prevent defects through process improvements. Both roles are essential for maintaining product quality, but they differ in approach and activities.

What is quality control?

Quality control (QC) is a process by which businesses ensure that their products or services meet specific standards of quality. This typically involves systematic inspection, testing, and corrective actions to detect and address defects or inconsistencies. Quality control helps maintain customer satisfaction, comply with regulations, and reduce waste or costly errors. QC can be applied at various stages of production and is essential in industries such as manufacturing, food production, and pharmaceuticals.

What are some common challenges faced by Quality Control professionals and how can they be addressed?

Quality Control professionals often encounter challenges such as maintaining consistency across production batches, adapting to new regulatory standards, and managing tight deadlines without compromising quality. Addressing these challenges requires strong attention to detail, effective communication with production and engineering teams, and continuous learning to stay updated on industry best practices. Many companies support their QC staff with regular training sessions, clear documentation protocols, and collaborative problem-solving meetings to ensure quality standards are upheld.

Do you need a degree for QC?

A degree is not always required for a quality control (QC) position, but many employers prefer candidates with a high school diploma or equivalent. Some roles may require technical training, certifications, or experience in quality assurance, manufacturing, or related fields. Skills such as attention to detail and knowledge of quality standards are often more important than formal education alone.

Is quality control a good career path?

Quality control is a viable career path that involves inspecting products and processes to ensure standards are met, often requiring attention to detail and knowledge of industry regulations. It can lead to roles in manufacturing, pharmaceuticals, or food industries, with opportunities for advancement and certification such as Six Sigma or ISO auditor training.

What are the key skills and qualifications needed to thrive as a Quality Control professional, and why are they important?

To thrive as a Quality Control professional, you need keen attention to detail, analytical skills, and a background in science, engineering, or manufacturing, often supported by relevant certifications like Six Sigma or ISO standards. Familiarity with quality management systems (QMS), statistical process control (SPC) software, and inspection equipment is typically required. Strong problem-solving abilities, communication, and teamwork set top performers apart in this role. These skills are crucial to ensure product consistency, prevent defects, and maintain compliance with industry standards.
More about Quality Control jobs
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What job categories do people searching Quality Control jobs in Rialto, CA look for? The top searched job categories for Quality Control jobs in Rialto, CA are:
What cities near Rialto, CA are hiring for Quality Control jobs? Cities near Rialto, CA with the most Quality Control job openings:
Quality Control jobs near you
Infographic showing various Quality Control job openings in Rialto, CA as of July 2026, with employment types broken down into 1% As Needed, 75% Full Time, 21% Part Time, 1% Temporary, and 2% Contract. Highlights an 96% Physical, 1% Hybrid, and 3% Remote job distribution, with an average salary of $44,792 per year, or $21.5 per hour.
Quality Control Specialist

Quality Control Specialist

Partners Professional

City Of Industry, CA • On-site

$24/hr

Full-time

Medical, Dental, Vision

Posted 10 days ago

Job description

POSITION SUMMARY

This position performs work-related quality and specification compliance inspections of raw material, packaging material, and return goods. The position may also require to conduct investigation for non-conforming materials, assisting with shelf-life sample handling, and Online QC backup, sometimes off hour, weekend QC backup.


ESSENTIAL FUNCTIONS

Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.

· Receiving Inspection

· Inspect incoming raw materials and packaging materials according to QA/QC work instructions.

· Inspect incoming bulk materials (sugar, soybean oil, non-GMO soybean oil).

· Collect samples using hygiene method when needed according to the receiving manual.

· Organize and update Raw Material Manual.

· Organize and update receiving records.

· Organize and update COAs from suppliers.

· Work with QA Supervisor to investigate non-conformance RM/PM.

· Inspect return good for quality condition.

· Organize and account for shelf-life samples.

· Online Inspection

· Conduct online inspections and verify the control parameters according to procedures and instructions for production, filling and packaging process.

· Record results of inspections, including weigh-up, filling temperature, packaging material, product code, container closure, etc.

· Perform GMP/hygiene inspection based on GMP and hygiene standards. Correct GMP/hygiene violations and report to the production supervisor and/or QA Manager.

· Conduct daily and monthly sanitation inspections, including pre-operation inspection and post-operation inspection.

· Perform ATP test and environmental swabbing.

· Perform environmental air quality.

· Record the results of inspection and communicate with Production Supervisor and Quality Assurance Manager.

· All jobs shall be conducted promptly according to QA/QC work instruction.

· Other tasks

· Observe and record nonconforming products/production and promptly communicate with the Production Supervisor and Quality Assurance Manager or designee for immediate action.

· Assist Quality Assurance Manager with any tasks related to quality compliance.

· Perform other special assignments from management.


EDUCATION, SKILLS and EXPERIENCES

· A year of experience in food manufacturing

· This position requires a high school diploma or general education (GED).

· Candidates must be able to work independently and in cross-functional teams to achieve established goals.

· Individuals must be detail-oriented, quality-oriented, with a high sense of responsibility.

· Ability to apply common sense understanding to carry out instructions furnished in written and oral form.


LANGUAGE SKILLS

· Candidate must be able to speak, write, read, and understand English to perform daily functions.

· Bilingual in English/Chinese or Spanish preferred.