Quality Assurance Supervisor
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Summary
The QA Supervisor protects product quality and safety at Monterey Mushrooms' nutraceuticals operation in Royal Oaks, CA, running self-audits and customer/regulatory audits, environmental and microbiological monitoring, sanitation verification, HACCP meetings, recordkeeping, and staff training to keep the plant compliant with FDA, GMP, and USDA NOP standards.
Job Title: Quality Assurance Supervisor for Nutraceuticals
Reporting To: Director of Food Safety & Quality Assurance
Location: Royal Oaks, CA
FLSA Status: Full Time Exempt
Work Schedule: Generally, Monday – Friday, 8AM – 5PM
Position Type: On-site
Compensation: The following information is provided in honesty as a general description of the salary range. The actual compensation offered to the successful candidate is dependent upon related factors such as skills, experience, education, etc. Salary Estimate: $71,000 - $75,000 DOE
Monterey Nutra®
Monterey has spent more than 55 years getting to know mushrooms. Refining cultivation methods. Discovering and developing new strains. That depth of expertise is what drives Monterey Nutra.
Our nutraceutical division was built on the science behind our genetics program. The same rigor that produces better spawn produces better extracts. The result: full-spectrum mushroom ingredients with industry-leading potency and purity, optimized for solubility, clean taste, and consistent performance.
We partner with innovators across food, beverage, and wellness to help them formulate better products. Whether you are building a new supplement line or looking for a reliable functional ingredient supplier, Monterey Nutra gives you the tools to do it right.
Certified Organic. Non-GMO. Vegan. Third-party tested.
For more information, visit us https://www.montereynutra.com.
Amycel®
For more than 45 years, Amycel® has helped shape the way commercial mushrooms are grown. From the proprietary strain genetics behind some of the most widely grown brown mushrooms in the world, to grower-to-grower field support that starts on the farm, mushroom
operations around the globe rely on Amycel to perform.
Premium spawn. Trusted supplements. A relentless focus on quality and consistency. That foundation has not changed since 1979. What has changed is scale. Today Amycel serves commercial growers across the Americas and Europe, with production and support on three continents.
Our R&D program runs 32 dedicated test rooms focused on new genetics and inputs that help growers get more from every crop. Current priorities include:
- Strains developed for higher yield and reduced water use
- Kodiak, launching Summer 2026, requires up to 50% less water for the same yield
- Spawn carriers engineered to reduce green mold and compost waste
- Delayed-release supplement technology that protects compost and extends flush viability
Visit us at .
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Why this Role Matters
The QA Supervisor plays an important role in protecting the quality and safety of our products while ensuring our operations meet company, customer, and regulatory standards. This role helps turn food safety and quality requirements into consistent daily practices by supporting audits, environmental and microbiological monitoring, sanitation verification, training, and accurate recordkeeping. By identifying trends, addressing potential issues, and supporting corrective actions and continuous improvement, the QA Supervisor helps strengthen our food safety culture, maintain compliance, and ensure we consistently deliver safe, high-quality products our customers can trust.
What Do We Expect?
Quality Assurance & Food Safety
- Conduct monthly self-audits and participate in internal, customer, and regulatory audits.
- Conduct the Environmental Monitoring and Microbiological Testing Program, including sample collection, documentation, and trend analysis.
- Support the QA team in annual HACCP audits and facilitate monthly Food Safety/HACCP meetings.
- Assist in annual food safety program audits and coordinate corrective and preventive actions resulting from audit findings.
- Perform sanitation audits and support ongoing sanitation verification activities.
- Maintain, review, and trend quality records including environmental micros, product testing, ATP results, and pest control data.
- Maintain records in the Nutra Division Quality & Food Safety Manual.
- Support continuous improvement initiatives related to food safety, organic systems, USDA NOP,quality systems, and compliance.
Training & Compliance
- Assist in the training of personnel on food safety, worker safety, and new equipment on a monthly and annual basis.
- Assist in food safety and quality training for new hires.
- Assist with ongoing food safety training programs to ensure regulatory and customer compliance.
What are we looking for?
- Bachelor’s degree in a relevant field related field preferably in the nutraceuticals or food manufacturing industry or a minimum of 3 years of experience.
- Bilingual (English + Spanish) preferred.
- Familiarity with quality assurance standards and regulatory compliance (e.g., FDA, GMP).
- Excellent decision-making skills and the ability to think strategically.
- Proven ability to drive results and meet operational goals.
- Strong verbal and written communication skills, with the ability to effectively convey complex information to various stakeholders.
- Ability to build and maintain relationships across all levels of the organization.
- Strong analytical and problem-solving skills, with a data-driven approach to decision-making.
- Strong team player with the ability to collaborate and influence others.
- Proficient in Google Suite, Excel, PowerPoint, and relevant industry-specific software.