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Lief Labs in Valencia, CA, is seeking a hands-on Quality Assurance Manager to lead quality systems, regulatory compliance, and continuous improvement in our dietary supplement manufacturing operation.
You will partner with Operations, Production, Compliance, and QA to strengthen processes, drive audits readiness, and ensure products meet safety and quality standards.
The role offers a bright opportunity to develop talent and advance a culture of compliance across the facility.
Current job opportunities are posted here as they become available.
Location: Valencia, CA | Department: Quality | Reports To: Director of Compliance | FLSA Status: Exempt
Lief Labs is a premier formulation, product development, and manufacturing partner for leading dietary supplement brands. Our world-class R&D and Product Development teams create innovative, great-tasting formulations, while our state-of-the-art cGMP manufacturing facility delivers scalable, turnkey solutions that help entrepreneurial companies build and grow successful brands.
Are you a quality leader who thrives in a fast-paced manufacturing environment and enjoys building systems that make teams stronger? We are looking for a hands-on Quality Assurance Manager to lead quality systems, regulatory compliance, and continuous improvement for a dietary supplement manufacturing operation. In this high-impact role, you will partner closely with Operations, Production, Compliance, and QA teams to strengthen processes, solve problems, support audit readiness, and help ensure every product meets rigorous standards for safety, quality, and compliance.
This is a chance to step into a visible quality leadership role where your work directly supports product integrity, operational excellence, and team success. You will have the opportunity to strengthen quality systems, influence cross-functional processes, develop talent, and help shape a culture where compliance, accountability, and continuous improvement are part of everyday work.
The salary range for this position is $100,000 - $130,000 USD. Starting pay depends on job-related factors including market demands, experience, training, skills, and education.
This role is performed in a Good Manufacturing Practice (GMP) manufacturing environment with controlled facilities, documented processes, and strict quality and regulatory standards. Employees are expected to follow GMP procedures, maintain a clean and organized workspace, and support quality assurance practices. Some travel may be required, including local supplier, customer, warehouse, or business-related travel and occasional out-of-area travel as business needs require.
Lief is an Equal Opportunity employer. All qualified applicants will receive consideration for employment regardless of race, color, religion, or sex, including sexual orientation and gender identity, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.
Suppose you are a qualified individual with a disability or a disabled veteran. In that case, you have the right to request accommodation if you are unable or limited in your ability to use or access our career center due to your disability. To request an accommodation, contact the Lief Human Resources department.
Lief will consider employment-qualified applicants with criminal histories in a manner consistent with the requirements of the Los Angeles Fair Chance Initiative for Hiring.
Lief uses E-Verify to confirm work eligibility in the United States. E-Verify compares the information on your Form I-9, Employment Eligibility Verification, to offici al government records