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Senior Quality Control Associate Jobs in Castro Valley, CA

Astrix Inc

Sr. QC Associate

Fremont, CA · On-site

The company is looking for a Sr. QC Associate to join the team. This is an amazing opportunity to work on cutting edge treatments and make a difference! Title: Sr. Quality Control Associate (Contract ...

Fladger Associates

QC Associate

Fremont, CA · On-site

Excellent employment opportunity for a QC Associate III in the Fremont, CA area. * Performs sampling/testing/inspection of raw materials, conducts lab investigations, and reports aberrant results to ...

Sysco

Quality Control Associate

San Francisco, CA · On-site

$21.88 - $32.84/hr

Regularly exercises discretion and in performing duties directly related to the general operation of product quality control. RESPONSIBILITIES Provide technical, customer relations, and personnel ...

Sysco Corporation

Quality Control Associate

Union City, CA · On-site

$21.88 - $32.84/hr

Regularly exercises discretion and in performing duties directly related to the general operation of product quality control. RESPONSIBILITIES Provide technical, customer relations, and personnel ...

Fladger Associates

QC Associate IV

Fremont, CA · On-site

Excellent employment opportunity for a QC Associate IV in the Fremont, CA area. * Reviews raw material lot packages and releases RM lots for GMP manufacturing use. * Ensures lot release timelines ...

Astrix Inc

QC Associate II

Fremont, CA · On-site

$30 - $33/hr

Pay Rate Low: 30 | Pay Rate High: 33 QC Associate II We are partnering with a multi-product biopharmaceutical manufacturing facility to place a QC Associate II within their Physical-Chemical Testing ...

Exyte Group

Senior QA/QC Inspector

Fremont, CA · On-site

$34.28/hr

The Senior QA/QC Inspector plays a critical role in maintaining quality standards, supporting ... where associates excel based on personal merit, qualifications, experience, ability, and job ...

GRIFOLS, S.A.

QC Sr. Analyst

Emeryville, CA · On-site

$48.23/hr

If a job level typically requires an Associate's degree plus 2 years of experience, an equivalent could include 4 years of experience or a bachelor's degree. The estimated pay scale for Senior QC ...

Alamar Biosciences

Senior QC Scientist I

Fremont, CA · On-site

During this period, the Sr. QC Scientist will receive comprehensive training in Alamar's NULISAseq platform, antibody pool production processes, and our suite of QC methodologies. Upon completing ...

Grifols

QC Sr. Analyst

Emeryville, CA

$48.23/hr

If a job level typically requires an Associate's degree plus 2 years of experience, an equivalent could include 4 years of experience or a bachelor's degree. The estimated pay scale for Senior QC ...

CYNET SYSTEMS

QC Associate II

Fremont, CA · On-site

$28 - $33/hr

Maintains own training within compliance and assist other technicians and associates on operations upon completion of trainer qualification. * Represents QC operations on cross-functional root cause ...

Alamar Biosciences

Senior QC Scientist I

Fremont, CA · On-site

During this period, the Sr. QC Scientist will receive comprehensive training in Alamar's NULISAseq platform, antibody pool production processes, and our suite of QC methodologies. Upon completing ...

Merck & Co.

QC Associate II

Fremont, CA · On-site

$75 - $100/hr

As part of the QC Phys-Chem Testing team, execute and coordinate routine and non-routine testing of bulk drug substance, final finish products, and raw materials within a multi-product facility.

CYNET SYSTEMS

QC Associate II

Fremont, CA · On-site

$28 - $33/hr

As part of the QC Phys-Chem Testing team, execute and coordinate routine and non-routine testing of bulk drug substance, final finish products, and raw materials within a multi-product facility.

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Senior Quality Control Associate information

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$13

$29

$44

How much do senior quality control associate jobs pay per hour?

As of Aug 27, 2026, the average hourly pay for senior quality control associate in Castro Valley, CA is $29.38, according to ZipRecruiter salary data. Most workers in this role earn between $21.35 and $35.77 per hour, depending on experience, location, and employer.

What does a senior quality control associate do?

A Senior Quality Control Associate is responsible for overseeing and performing quality control tests on products or materials to ensure they meet company and regulatory standards. They analyze test data, identify trends or deviations, and help implement corrective actions when issues are found. Additionally, they may mentor junior team members, assist in developing testing protocols, and collaborate with other departments to resolve quality concerns. Their work is essential in maintaining product consistency, safety, and compliance within the organization.

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

To thrive as a Senior Quality Control Associate, you need a strong background in analytical testing, quality assurance principles, and relevant scientific education, often with a bachelor’s degree in chemistry, biology, or a related field. Familiarity with laboratory information management systems (LIMS), Good Manufacturing Practices (GMP), and regulatory compliance requirements is typically expected, along with proficiency in using laboratory instruments. Attention to detail, problem-solving abilities, and effective communication are vital soft skills for excelling in this role. These competencies ensure the reliability of product quality, support regulatory compliance, and contribute to efficient cross-functional collaboration within the organization.

What are some typical challenges senior quality control associates face when overseeing multiple projects simultaneously?

Senior Quality Control Associates often manage several projects at once, which can present challenges such as balancing competing deadlines, ensuring consistent application of quality standards, and effectively communicating with cross-functional teams. Staying organized and prioritizing tasks is essential to prevent bottlenecks and maintain high-quality deliverables. Additionally, adapting quickly to changes in project scope or regulatory requirements is a key part of the role, as is mentoring junior team members to uphold best practices.

What is the difference between Senior Quality Control Associate vs Quality Control Associate?

AspectSenior Quality Control AssociateQuality Control Associate
Required CredentialsBachelor's degree, relevant certifications (e.g., CQE)Bachelor's degree often preferred, certifications optional
Work EnvironmentLaboratory, manufacturing, or production settingsLaboratory, manufacturing, or production settings
Employer & Industry UsagePharmaceuticals, biotech, manufacturing companiesPharmaceuticals, biotech, manufacturing companies
Job ResponsibilitiesOversees testing, reviews quality data, mentors junior staffPerforms testing, documents results, supports quality checks

The main difference between a Senior Quality Control Associate and a Quality Control Associate lies in experience, responsibilities, and leadership. Senior roles typically involve overseeing testing processes, mentoring staff, and ensuring compliance, while associate roles focus on executing tests and documenting results. Both positions are vital in maintaining product quality in industries like pharmaceuticals and manufacturing.

What cities near Castro Valley, CA are hiring for Senior Quality Control Associate jobs?

Cities near Castro Valley, CA with the most Senior Quality Control Associate job openings:

Infographic showing various Senior Quality Control Associate job openings in Castro Valley, CA as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 16% Part Time, 4% Contract, and 1% Nights. Highlights an 84% Physical, 1% Hybrid, and 15% Remote job distribution, with an average salary of $61,115 per year, or $29.4 per hour.

Sr. QC Associate

Fremont, CA • On-site

Astrix Inc
Recruiting and Staffing Services • 1 - 5K employees
Learn more about Astrix Incexternal

Full-time

Re-posted 8 days ago

Job description

Pay Rate Low: 32 | Pay Rate High: 34
Our client is a global, research-driven pharmaceutical manufacturer focusing on treatment options for diseases and conditions for which there is no satisfactory treatment option to date. The company is looking for a Sr. QC Associate to join the team. This is an amazing opportunity to work on cutting edge treatments and make a difference!
Title: Sr. Quality Control Associate (Contract)
Location: Alameda County, CA
Schedule & Contract
  • Contract Duration: 3 months (Likely to extend)
  • Schedule: Monday-Friday, 8:00 AM-5:00 PM
  • Hours: 40 hours per week

Job Duties
We are seeking a Quality Control Analyst to support analytical testing activities within a cGMP-regulated biopharmaceutical manufacturing environment.
  • This role is responsible for executing and coordinating analytical testing of bulk drug substance and drug product across multiple analytical platforms, including chromatography, potency/bioassays, microbiology, raw materials, cleaning validation, and packaging testing.
  • The analyst will independently perform and review 3-5 analytical methods, ensure accurate documentation, and support data trending, investigations, and compliance activities.
  • Responsibilities include authoring and maintaining QC documentation (SOPs, test methods, specifications, and reports), identifying process improvements, and ensuring adherence to global regulatory requirements (e.g., FDA, EMA).

Qualifications
  • High School Diploma with 6+ years, Associate Degree with 4+ years, or Bachelor's Degree in a science or engineering field with 2+ years of cGMP experience
  • Prior Quality Control experience preferred
  • Strong technical knowledge of analytical testing in biopharmaceutical manufacturing
  • Demonstrated ability to independently execute methods, review data, and ensure compliance.

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