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Quality Control Jobs in Rialto, CA (NOW HIRING)

Chemical Guys

Quality Control Inspector

Fontana, CA · On-site

$19/hr

As a Quality Inspector, you will oversee all Quality Control processes performed in-house and work closely with the Quality Control Lead when performing investigations for root cause analysis & CAPA ...

New

Mapei

Quality Control Technician

San Bernardino, CA · On-site

$20.60/hr

As a Quality Control Technician at MAPEI , you will use your chemistry lab skills to perform tests, set up experiments, and collaborate across the manufacturing quality function. Your focus will be ...

Volt

Quality Control Inspector

Trabuco Canyon, CA · On-site

$25 - $30/hr

The ideal candidate will have: * 3-5 years of Quality Control experience in PCB Assembly manufacturing. * Experience working in electronics, aerospace, or semiconductor manufacturing environments.

New

Pepsico

Technician - Quality Control

Riverside, CA · On-site

$19.50 - $25/hr

Experience operating testing instruments (e.g., Carbo Qc, HPLC, Densitometers, Water Testing, etc.) * Experience following standards of operations (SOPs) (e.g., following procedures, etc.

Pepsico

Technician - Quality Control

Riverside, CA · On-site

$23.25/hr

Experience operating testing instruments (e.g., Carbo Qc, HPLC, Densitometers, Water Testing, etc.) * Experience following standards of operations (SOPs) (e.g., following procedures, etc.

Turner Mining Group

Travelling QC Technician

Anaheim, CA · On-site

$47K - $52K/yr

Traveling Quality Control Technician Turner Staffing Group Turner Staffing Group is seeking a Traveling Quality Control Technician Specialist to support field operations across multiple project sites.

Turner Mining Group

Travelling QC Technician

Anaheim, CA · On-site

$47K - $52K/yr

Traveling Quality Control Technician Turner Staffing Group Turner Staffing Group is seeking a Traveling Quality Control Technician Specialist to support field operations across multiple project sites.

Turner Mining Group

Travelling QC Technician

Anaheim, CA · On-site

$47K - $52K/yr

Traveling Quality Control Technician Turner Staffing Group Turner Staffing Group is seeking a Traveling Quality Control Technician Specialist to support field operations across multiple project sites.

PCV Murcor

QC Analyst III

Pomona, CA · On-site

$33 - $36/hr

QC Analyst III Working from Home Opportunities Available Salary Range: $33 t0 $36/ hour, DOE We are looking for a certified licensed appraiser, either Residential, Commercial, or both to join our ...

Astrix Inc

QC Lab Technician

Chino, CA · On-site

$20 - $25/hr

Contract - hire Job Summary The QC Lab Technician is responsible for performing routine laboratory testing of raw materials, in-process samples, and finished products to ensure compliance with ...

Astrix Inc

QC Lab Technician

Chino, CA · On-site

$20 - $25/hr

Contract - hire Job Summary The QC Lab Technician is responsible for performing routine laboratory testing of raw materials, in-process samples, and finished products to ensure compliance with ...

Astrix Inc

QC Lab Technician

Chino, CA · On-site

$20 - $25/hr

Contract - hire Job Summary The QC Lab Technician is responsible for performing routine laboratory testing of raw materials, in-process samples, and finished products to ensure compliance with ...

Insight Global

QC Inspector

Anaheim, CA · On-site

$30 - $40/hr

Required Skills & Experience * 7+ years of Quality experience at company * Strong understanding of Quality processes and variable volumes * Proven ability to work in high-throughput environments

Kinetic Personnel Group

Be Seen First

Quality Control Inspector Aerospace

Corona, CA · On-site

$24 - $30/hr

Quality Control Inspector - Aerospace Manufacturing Join Our Team We are a growing aerospace manufacturing company seeking an experienced Quality Control Inspector to join our team. The ideal ...

TESTEQUITY LLC

Quality Control Technician - I

Corona, CA

$19.25 - $24.75/hr

The Quality Control Technician I is responsible for performing quality control reviews of purchased and/or manufactured products and records. This activity is executed in real-time and in accordance ...

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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 Aug 9, 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 quality control?

The job of quality control involves inspecting products or services to ensure they meet specified standards and are free of defects. Quality control professionals use testing, measurements, and documentation to identify issues and improve processes, often working with tools like checklists and quality management systems. Strong attention to detail and knowledge of industry standards are essential for this role.

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.

Do you need a degree for quality control?

A degree is not always required for a quality control position, as many employers accept candidates with a high school diploma or equivalent. However, having post-secondary education or certifications in quality management, such as Six Sigma or ISO standards, can improve job prospects and advancement opportunities.

Is quality control a good career choice?

Quality control is a viable career that involves inspecting products and processes to ensure standards are met, often requiring attention to detail and knowledge of industry regulations. It can offer stable employment with opportunities for advancement and may require certifications or training in specific tools or standards. The field is important across many industries, including manufacturing, healthcare, and food production.

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.

Is quality control a good career path?

Quality control is a viable career 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 advancement into supervisory or specialized roles and may require certifications such as Six Sigma or ISO standards. The job typically offers stable employment in manufacturing, healthcare, or technology sectors.

What are the key skills and qualifications needed to thrive as a quality control professional?

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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Quality Control jobs near you
Infographic showing various Quality Control job openings in Rialto, CA as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 16% Part Time, 3% Contract, and 1% Nights. 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.

Chemist Quality Control

Excelsior Nutrition Inc

Anaheim, CA • On-site

$20 - $38/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 13 days ago

Job description

Benefits:
  • Life Insurance
  • LTD
  • Health insurance
  • Paid time off
  • Vision insurance
  • 401(k)
  • 401(k) matching
  • Dental insurance

The QC Chemist will be responsible for sampling and testing raw materials, products in mid-production, and finished products. The Chemist will evaluate raw materials that arrive to ensure they meet quality standards and project specifications. Primary duties are to measure and test lab materials and products according to industry-specific standard procedures. We are a contract manufacturer for dietary supplements and sports nutrition products.
  
DUTIES & RESPONSIBILITIES:

 The following responsibilities would characterize the requirements of this position. Must possess the skills necessary to perform the majority of the listed functions:
  1.  Review and approve the documentation setting forth the basis for qualification of any supplier
  2. Prepare compounds, test solutions, and reagents to conduct tests and experiments, then advising and coordinating on test procedures
  3. Determine the relationships of chemical and physical properties, composition, and structures 
  4. Develop, improve and customize equipment, products, formulas, analytical methods, and processes
  5. Document findings in technical papers and reports, preparing specifications, and testing standards
  6. Clean and maintain laboratory instruments and equipment
  7. Making sure that all the technology is working correctly 
  8. Conduct quality control tests to ensure no compounds or equipment are contaminated
  9. Order laboratory supplies and chemicals, keeping an eye on expiration dates
  10. Follow all company and governmental safety procedures
  11. Create thorough reports on tests and your findings
  12. Evaluate testing protocols and suggest improvements
 
REQUIREMENTS:

Competencies
 
  1. Master’s degree in Chemistry, Chemical Engineering, Biochemistry, Biomedical or related field is required
  2. Hands-on experience a must with Inductively Coupled Plasma Mass Spectroscopy (ICPMS). And High-Performance Thin-Layer Chromatography (HPTLC), High-Performance Liquid Chromatography (HPLC) machinery is a plus
  3. ISO 17025 Lab Manager experience preferred
  4. Strong background in Food Science and Chemistry is highly desirable
  5. Previous experience working in biotechnology, or research laboratory is preferred
  6. Strong knowledge of analytical chemistry principles
  7. Proficiency in laboratory techniques, including spectroscopy, chromatography, and wet chemistry methods
  8. Excellent analytical and problem-solving skills with meticulous attention to detail
  9. Strong written and verbal communication skills, with the ability to present findings clearly and concisely
  10. Ability to work both independently and collaboratively in a team-oriented environment
  11. Familiarity with regulatory guidelines 
  12. Commitment to safety and adherence to laboratory protocols
  13. Strong organizational skills and the ability to manage multiple tasks and projects simultaneously