Quality Assurance Manager

Career Opportunities with Lief Labs Careers At Lief Labs Current job opportunities are posted here as they become available. Back To Openings Quality Assurance Manager Department: Quality Location: Valencia, CA START YOUR APPLICATION No Visa Sponsorship | No Relocation Quality Assurance Manager 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. About the Role 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. What You�ll Do Own and continuously improve the Quality Management System, including investigations, deviations, CAPAs, training, complaints, out-of-specification results, risk assessments, and change controls. Serve as a trusted quality partner to Operations and Production while driving compliance with FDA regulations, GMP, HACCP, sanitation, ISO standards, and applicable third-party certification requirements. Keep production moving by overseeing the timely creation, approval, and execution of master manufacturing and production batch records. Lead regulatory, client, and internal audits, translating findings into practical actions that strengthen compliance and performance. Use quality metrics, trends, and performance data to identify risks, improve processes, and support proactive management decisions. Lead recall readiness and execution, including initiation, customer and regulatory notification, and product withdrawal when needed. Champion Good Documentation Practices and Good Manufacturing Practices through training, coaching, and partnership with supervisors and leads. Build, mentor, and develop a capable QA Operations team through hiring, coaching, performance management, and ongoing staff development. What You�ll Bring Bachelor�s degree in a science field required; chemistry or microbiology preferred. 7+ years of Quality Assurance or Quality Control experience in a regulated manufacturing environment. 5+ years of leadership experience with a demonstrated ability to coach, develop, and drive accountability within a team. Strong knowledge of dietary supplement manufacturing and applicable regulatory requirements. Working knowledge of FDA, NSF, USP, GMP, HACCP, ISO standards, and third-party certification bodies. Practical problem-solver with experience using quality improvement, root cause analysis, and risk-based decision-making tools. Clear, confident communicator with strong English verbal and written communication skills. Collaborative, adaptable leader who can influence across functions and thrive in a dynamic, hands-on manufacturing environment. Why Join Us 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. Compensation 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. Work Environment 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 START YOUR APPLICATION Visit Our Home Page © 2026 Lief Labs Applicant Tracking System Powered by