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Quality Control Jobs in California (NOW HIRING)

20BLOC

QUALITY CONTROL (QC) LEAD

Thousand Oaks, CA · On-site

$90K - $110K/yr

How you will add value to 20BLOC The Quality Control (QC) Lead manages our QC group, leads the day‐to‐day operations of the QC lab, supervising QC specialists to conduct analytical assays, plan ...

20BLOC

QUALITY CONTROL (QC) LEAD

Thousand Oaks, CA · On-site

$90K - $110K/yr

How you will add value to 20BLOC The Quality Control (QC) Lead manages our QC group, leads the day‐to‐day operations of the QC lab, supervising QC specialists to conduct analytical assays, plan ...

First Staffing Group

Be Seen First

QUALITY CONTROL

Anaheim, CA · On-site

$20.75/hr

QC - Quality Control / Control de Calidad We are seeking an experienced QC Associate (Quality Control / Control de Calidad) for a food manufacturing facility in Anaheim, CA. Pay: $20.75/hour Shifts ...

Nongshim USA INC

Quality Control

Rancho Cucamonga, CA · On-site

$21.50 - $23/hr

Quality Control Staff Job Summary: The QC Tech is responsible for supporting the Quality Control department through various laboratory and quality assurance activities. This position involves ...

Eurostampa

QUALITY CONTROL

Napa, CA · On-site

$18 - $20/hr

QUALITY CONTROL ID: 9397 Category: Entry Level Location: Napa State: CA Description JOB POSTING QUALITY CONTROL Location: Onsite - Napa, California Hourly Rate: $18-20 per hour (Based on Experience ...

Eurostampa North America

QUALITY CONTROL

Napa, CA · On-site

$18 - $20/hr

JOB POSTING QUALITY CONTROL Location: Onsite - Napa, California Hourly Rate: $18-20 per hour (Based on Experience) Employment Type: Full-time, On-Site, Rotating Shifts, Weekends occasionally ...

Eurostampa North America

QUALITY CONTROL

Napa, CA

$18 - $20/hr

QUALITY CONTROL ID: 9397 Category: Entry Level Location: Napa State: CA Description JOB POSTING QUALITY CONTROL Location: Onsite - Napa, California Hourly Rate: $18-20 per hour (Based on Experience ...

AtWork PS

Quality Control

La Mirada, CA · On-site

$15/hr

Manufacturing company in La Mirada, CA. manufacturing custom and standard server racks, server rack accessories, aisle containment and modular structures is Urgently Hiring for Quality Control ...

American Jerky Company

Quality Control

Ontario, CA

$23.50 - $24.50/hr

Position Title: QA/QC TechnicianDepartment: QualityBusiness Unit: Ontario PlantThe statements included in this Position Specification reflect, in general, the duties and responsibilities of this ...

Accurate Personnel LLC

Quality Control

Roseville, CA · On-site

$20/hr

QUALITY CONTROL ASSOCIATE IN ROSEVILLE, CA Accurate Personnel is hiring immediately for a Quality Control Associate to join our team in Roseville, CA. This position is responsible for inspecting ...

TriCom Quest

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Quality Control Supervisor / QC Supervisor

Fountain Valley, CA · On-site

$75K/yr

Yakult USA, the world's leading probiotic drink manufacturer, is hiring the Quality Control Supervisor. Must have 10+ years of experience in a Food/Beverage related manufacturing environment with 5+ ...

Adecco

Quality Control

Fremont, CA · On-site

$32/hr

Quality Control Laboratory Analyst Location: Fremont, CA Pay: $32.00 per hour Experience: 0-2 years Industry: Medical Diagnostics / Bioscience What You'll Do * Conduct analytical and functional ...

GreenWaste Recovery LLC

Quality Control

San Jose, CA · On-site

Quality Control FLSA Status: Non-Exempt Reports To: Shift Supervisor Department: 485 Pay: $23.78 - $25.00 About the Company: GreenWaste has been an industry leader in recycling and waste diversion ...

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Quality Control information

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How much do quality control jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for quality control in California is $21.19, according to ZipRecruiter salary data. Most workers in this role earn between $17.07 and $23.70 per hour, depending on experience, location, and employer.

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 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.

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.

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.

Is a quality control job physically demanding?

A quality control job can involve physical tasks such as inspecting products, standing for extended periods, and handling materials. The physical demand varies depending on the industry and specific role, but many positions require good attention to detail and manual dexterity. Some roles may also involve lifting or moving objects, so physical fitness can be beneficial.

What do quality control workers do?

Quality control workers inspect products and materials to ensure they meet safety and quality standards. They use tools like measurement devices and follow procedures to identify defects, document issues, and ensure compliance with specifications, often working in manufacturing or production environments. Attention to detail and knowledge of quality standards are essential for this role.
More about Quality Control jobs

What are the most commonly searched types of Quality Control jobs in California?

The most popular types of Quality Control jobs in California are:

What are popular job titles related to Quality Control jobs in California?

For Quality Control jobs in California, the most frequently searched job titles are:

What job categories do people searching Quality Control jobs in California look for?

The top searched job categories for Quality Control jobs in California are:

What cities in California are hiring for Quality Control jobs?

Cities in California with the most Quality Control job openings:

Quality Control jobs near you
Infographic showing various Quality Control job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $44,083 per year, or $21.2 per hour.

QUALITY CONTROL (QC) LEAD

20BLOC

Thousand Oaks, CA • On-site

$90K - $110K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Located in Thousand Oaks, California, 20BLOC is a small privately held development‐stage biopharmaceutical company, driven by a mission to create breakthrough protein‐based drugs to save lives. Our lead product is an innovative solution to provide oxygen to tissues. Check us out at www.20bloc.com. We are looking for a motivated and hands‐on Quality Control (QC) Lead to join our team. How you will add value to 20BLOC The Quality Control (QC) Lead manages our QC group, leads the day‐to‐day operations of the QC lab, supervising QC specialists to conduct analytical assays, plan and forecast the company's quality control programs and needs, manage and coordinate external CROs / outsourcing labs for assay development, qualification, transfer, and support the analytical strategy and compliance of the group.

Key responsibilities

Coordinate with CROs and outsourcing parties for the development of analytical assays with defined protocols to measure purity, potency, and stability using equipment and instruments supporting biotherapeutics. Transfer developed and qualified assays from CROs and outsourcing parties to in‐house lab. Ensure the methods meet testing requirements, the laboratory operation complies with regulatory requirements, and the lots produced are consistent, safe, and efficacious. Oversee the execution of analytical assays by QC specialists.

Such assays include ELISA, gel electrophoresis, chromatographic‐based and other assays, and qualification activities following protocols on in‐process and final drug substance and drug product samples. Write and review SOPs, analytical protocols and written reports in compliance to cGMP as needed. Support the day‐to‐day operation of the QC lab and perform routine lab activities as needed.

Education

Bachelor degree in analytical, biological, life sciences or related field. Master or PhD preferred. Experience 5‐year+ experience working in a laboratory with hands‐on experience in analytical assays and qualification activities. Experience with regulatory and compliance, GMP analytical testing, quality systems, SOPs and regulatory filing documents authoring.

Hands‐on experience with protein analytical methods, both compendial and non‐compendial, such as HPLC (SEC, AEX/CEX, HIC, RP, etc.) and additional product‐specific methods such as ELISAs, electrophoretic methods (SDS‐PAGE, icIEF), endotoxin, osmolality, pH and appearance preferred. Experience with LC/MS analyses, potency assay, PCR, western blot and MS‐based methods a plus.

Working knowledge of phase appropriate quality systems, including deviations, CAPA, change control, and document management systems. Excellent interpersonal, verbal and written communication skills and the ability to work in a cross functional collaborative work environment. Strong attention to detail and excellent organizational skills. Please apply at jobs@20bloc.com – in subject line: QC Lead This is a full‐time, on‐site position located in Thousand Oaks, California, and requires working on‐site Monday through Friday. All applicants must be authorized to work in the United States. We are not sponsoring employment visas.

Compensation

Salary range for this position is $90,000.00 to $110,000.00 USD annually. This salary range is an estimate, and the actual salary may vary based on various factors, including, without limitation, individual education, experience, tenure, skills, and abilities, as well as internal equity and alignment with market data, including potential adjustments for geographic location. 20BLOC is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status, or other applicable legally protected characteristics. We offer competitive compensation and benefits including health, dental, vision and life insurance, 401(k) and paid time off.

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