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Quality Control Jobs in Rialto, CA (NOW HIRING)

CalPortland

Quality Control Supervisor

Glendora, 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

Orange, 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

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

Rialto, 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

Patton, 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

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

Corona, 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

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

Chino, 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

Orange, 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

Placentia, 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

Pomona, 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

Brea, 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

Orange, 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

La Verne, 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 Jun 25, 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 often use testing tools, follow procedures, and document findings to identify defects and prevent faulty items from reaching customers.

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

In the field of quality control, high-paying roles such as quality assurance directors or senior quality managers in large corporations can reach or exceed $500,000 annually, especially with bonuses and stock options. These positions typically require extensive experience, advanced certifications, and leadership skills in manufacturing, pharmaceuticals, or technology sectors.

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 do quality control workers do?

Quality control workers inspect products, materials, or processes to ensure they meet specified standards and quality requirements. They use tools like measurement devices and follow procedures to identify defects or issues, often documenting findings and collaborating with production teams to improve quality. Attention to detail and knowledge of quality standards are essential in this role.

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. Relevant skills such as attention to detail, knowledge of quality standards, and experience with inspection tools or software can be more important than formal education for entry-level QC roles.

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
What are the most commonly searched types of Quality Control jobs in Rialto, CA? The most popular types of Quality Control jobs in Rialto, CA are:
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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 June 2026, with employment types broken down into 1% As Needed, 78% Full Time, 16% Part Time, 1% Temporary, and 4% Contract. Highlights an 90% Physical, 1% Hybrid, and 9% Remote job distribution, with an average salary of $44,792 per year, or $21.5 per hour.
Quality Control Supervisor

Quality Control Supervisor

CalPortland

Glendora, CA • On-site

$75K - $100K/yr

Other

Medical, Dental, Vision, Life, Retirement

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

This position is for a Quality Control Supervisor in a cement lab and requires previous cement industry experience and ACI certifications.

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 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

$75K - 100K Annual Salary

Responsibilities
  • Directly supervises a team of hourly Laboratory Technicians
  • Reviews QC data daily and reports discrepancies to the manager in a timely manner
  • Responsible for administering the department safety program
  • Responsible for the maintenance and calibration of all QC-related analytical equipment
  • Provides formal, written reports to manager as required
  • Responsible for maintaining departmental cleanliness and efficiency
  • Generates and tracks equipment repair requests and purchases departmental supplies
  • Reviews and approves departmental payroll; creates work schedules and ensures vacation coverage
  • Assists department manager with the performance of stockpile measurements/inventory control
Education

ACI Certifications (required)

Bachelor's degree in Chemical Engineering or related field

Requirements/Qualifications
  • Experience in a cement industry required 
  • Strong analytical skills
  • Attention to detail
  • Accurate and timely with data analysis and reports
  • Able to teach others
  • Good use of Microsoft Office tools, i.e., Word, Excel, Outlook, and PowerPoint
  • Strong communication skills
  • Ability to quickly learn and master proprietary software associated with analytical equipment
  • Strong troubleshooting skills to determine and rectify mechanical and electrical problems
  • Physical requirements: ability to sit, stand, stoop, and bend for extended periods of time (up to 8 hours); climb stairs and ladders as high as 380 feet in elevation; ability to lift and carry 70lbs. up stairs; must be able to walk long distances, climb ladders, stairs, and stockpiles, stoop, and crawl under and into enclosed spaces
  • Walk on all types of surfaces (uneven and/or slippery ground)
  • Must be able to use proper Personal Protective Equipment as required
  • Ability to see and hear safety indicators and warnings
  • Must work in all weather conditions: heat, cold, wet, dry and/or dusty conditions and near hot kiln process
  • Will have exposure to all levels of noise that require the use of hearing protection
  • Exposure to cement, clay, limestone and various lab chemicals; see MSDS for more details
  • Ability to work in surroundings that include heat, dust, vibration, heights and confined spaces

Preferred:

  • Experience with a large ERP system, SAP a plus
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.

What CalPortland employees say

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