QC Manager

CTK USA INC; Corona (CA); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

Health Insurance

Paid Time Off (PTO)

Paid holidays

Annual floating holiday

Job summary

CTK OTC Laboratories in California seeks an experienced Quality Control Manager to lead the QC lab operations for OTC drug and cosmetic products. You will supervise technicians, oversee testing and stability, ensure data integrity, and drive investigations for OOS/OOT results in compliance with 21 CFR 210/211 and FDA guidance.

You will report to the QD Director, manage instrument calibration, and maintain reference standards while promoting accurate documentation and timely release of materials.

Qualifications

• Bachelor's degree in a relevant science field and hands-on QC lab experience in a cGMP-regulated environment.
• Experience leading OOS investigations and preparing investigation reports.
• Proficiency with analytical instruments and method validation/verification.
• Ability to author and review specifications, test methods, and investigations in English.
• Experience in data integrity remediation and audit trail review preferred.

Responsibilities

• Lead QC laboratory operations for physicochemical and microbiological testing.
• Supervise QC Laboratory Technicians and Package Incoming Inspector; manage training.
• Oversee stability program, environmental monitoring, and data integrity (ALCOA+).
• Review results, determine conformance, and report to QA for disposition.
• Lead Phase I OOS/OOT investigations and support Phase II investigations.
• Ensure compliance with 21 CFR Parts 210, 211, FDA OOS Guidance, and Part 11.

Skills

Regulatory knowledge

Data analysis

Technical writing

Supervisory/training

Bilingual (EN/Korean or EN/Spanish)

Education

Bachelor's degree in Chemistry/Pharmacy/Pharmaceutical Sciences/Microbiology/Biology/Chemical Engineering

Tools

HPLC/UPLC

GC

UV-Vis

FTIR

Karl Fischer

Viscometer

Wet chemistry methods

Job description

About the Role

CTK OTC Laboratories is seeking an experienced Quality Control Manager to lead our QC laboratory operations for OTC monograph drug and cosmetic products. Reporting to the QD Director, you will oversee physicochemical and microbiological testing, the stability program, environmental monitoring execution, and laboratory data integrity. You will determine technical conformance of tested materials, lead Phase I laboratory investigations of OOS/OOT results, and develop specifications and analytical methods — all in compliance with 21 CFR 210/211 and FDA OOS Guidance.

You will directly supervise the QC Laboratory Technicians and the Package Incoming Inspector, and own the day-to-day performance of the QC laboratory.

What You'll Do

• Manage physicochemical testing of raw materials, in-process materials, and finished products, and perform first-level review of results
• Manage microbial limit testing and environmental monitoring (EM) execution
• Determine technical conformance of raw materials, packaging components, and in-process materials, and report results to QA for disposition
• Operate the stability testing program, manage stability results, and recommend expiration dating
• Develop specifications and technical justifications for raw materials, in-process materials, finished products, and purified water for QA approval
• Execute and technically review analytical method validation protocols and reports
• Lead OOS/OOT Phase I laboratory investigations and support QA-led Phase II investigations
• Perform first-level review of electronic data audit trails and oversee laboratory system CSV
• Manage laboratory instrument calibration, maintenance, and the Daily Verification program
• Oversee reference standards, reagents, and retain sample management
• Manage purified water testing and monitoring, and monitor storage/stability chamber conditions
• Execute tamper-evident packaging inspection (21 CFR 211.132) and testing/quality evaluation of returned and recalled products
• Manage laboratory data integrity (ALCOA+) compliance and provide trend data for the Annual Product Review

Leadership Responsibilities

• Directly supervise, train, and evaluate the QC Laboratory Technicians and the Package Incoming Inspector
• Develop and manage QC test method, instrument, and laboratory job‑specific training programs (new‑hire and periodic refresher)
• Set day‑to‑day priorities and workload across the QC laboratory to meet testing and release timelines
• Build a strong laboratory culture of accurate, contemporaneous documentation and prompt escalation of atypical results

Education & Experience

• Bachelor's degree in Chemistry, Pharmacy, Pharmaceutical Sciences, Microbiology, Biology, Chemical Engineering preferred but not required
• Substantial hands‑on QC laboratory experience in a cGMP‑regulated environment (OTC drug, pharmaceutical, cosmetic, or dietary supplement), including supervisory or managerial experience
• Demonstrated experience with analytical instrumentation (HPLC/UPLC, GC, UV‑Vis, FTIR, Karl Fischer, viscometer) and wet chemistry methods
• Demonstrated experience with method validation/verification, stability program operation, and microbial limit testing
• Experience leading Phase I laboratory OOS investigations and preparing investigation reports
• Experience with laboratory data integrity remediation and audit trail review preferred

Knowledge, Skills & Abilities

• Thorough working knowledge of 21 CFR Parts 210, 211, and 11, USP general chapters, and FDA OOS Guidance
• Ability to critically evaluate analytical data and distinguish laboratory error from manufacturing‑related causes
• Ability to author and review specifications, test methods, validation protocols, and investigation reports in English
• Competent with Microsoft Word, Excel, Outlook, PDF tools, and electronic document/record and inventory systems
• Proficiency with chromatographic data systems and laboratory electronic records, including audit trail review
• Effective supervisory and training skills for laboratory personnel
• Bilingual English/Korean or English/Spanish is a plus

Regulatory Scope

This position determines technical conformance for materials and products tested by the QC laboratory, with final disposition authority resting with QA. The role supports compliance with laboratory controls (21 CFR 211.160–211.167), stability testing (211.166), tamper‑evident packaging (211.132), electronic records (Part 11), and data supporting the Annual Product Review (211.180–211.198).

Benefits

• Health Insurance — premium 100% covered by employer for the employee
• Paid Time Off (PTO)
• Paid holidays
• Annual floating holiday