Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

QC Laboratory Technician (RM-Water)

CTK USA INC

Job Description

Job Description

About the Role

CTK OTC Laboratories is seeking a QC Laboratory Technician (Raw Material / Water & Visual Inspection) to perform incoming raw material testing, purified water sampling and water quality testing, and finished product sensory and visual inspection. In this role, you'll prepare test result records and CoA documentation to support quality decisions made by the QC Manager and QA.

What You'll Do

  • Perform finished product sensory and visual inspection in accordance with approved specifications
  • Perform purified water sampling and water quality testing, and record monitoring results
  • Execute incoming raw material testing, record test results, and prepare CoA documentation
  • Manage reference standards and reagents, including receipt, labeling, expiration control, and storage
  • Manage raw material retain samples, including labeling, storage condition control, and inventory
  • Perform Daily Verification of assigned instruments (e.g., viscometer, refractometer, microbiological equipment) and record results contemporaneously
  • Support tamper-evident packaging inspection (21 CFR 211.132) as assigned
  • Report atypical, out-of-trend, or out-of-specification results immediately to the QC Manager and support Phase I laboratory investigations
  • Maintain laboratory cleanliness, reagent labeling, and safe handling of chemicals per procedures
  • Record all test data contemporaneously and accurately in compliance with Good Documentation Practices and data integrity (ALCOA+) requirements

Education & Experience

  • Bachelor's Degree preferred
  • Practical QC laboratory or incoming-material testing experience in a cGMP-regulated environment (OTC drug, pharmaceutical, cosmetic, or dietary supplement)
  • Experience with water quality testing (conductivity, TOC, microbial limits) preferred
  • Experience with raw material identity and conformance testing is an advantage

Knowledge, Skills & Abilities

  • Working knowledge of cGMP laboratory and component controls (21 CFR 211.84, 211.160–211.167) and Good Documentation Practices (ALCOA+)
  • Ability to follow approved test methods precisely and perform accurate calculations and unit conversions
  • Competent with Microsoft Word, Excel, Outlook, PDF tools, and electronic document/record and inventory systems
  • Proficiency in sensory/visual inspection techniques and use of basic laboratory instrumentation
  • Strong attention to detail and legible, contemporaneous documentation
  • Bilingual English/Korean or English/Spanish is a plus

Regulatory Scope

This position performs raw material, water, and sensory/visual testing supporting compliance with component controls (21 CFR 211.84), laboratory controls (211.160–211.167), and tamper-evident packaging inspection (211.132). Technical conformance is determined by the QC Manager, with final material disposition granted by QA.

Benefits

  • Health Insurance — premium 100% covered by employer for the employee
  • Paid Time Off (PTO)
  • Paid holidays
  • Annual floating holiday
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the QC Laboratory Technician (RM-Water) in Corona, CA vacancy
  •  ...Description Job Description About the Role CTK OTC Laboratories is seeking a QC Laboratory Technician (Finished Product / In-Process Testing) to perform incoming raw material testing, purified water sampling and water quality testing, and finished product sensory... 
    Water
    Immediate start

    CTK USA INC

    Corona, CA
    1 day ago
  •  ...We are on the lookout for a Medical Lab Technician who combines their inquisitive nature...  ...both routine and sophisticated clinical laboratory tests in areas like chemistry, hematology...  ...scenic hikes, paddleboarding on serene waters, or attending live performances resonating... 
    Water
    Full time
    Local area
    Weekend work
    Day shift

    MLee Medical Employment

    Riverside, CA
    3 days ago
  • $90k - $120k

     ...development including design of drainage and stormwater systems, water systems, sanitary sewer systems, parking and roadways Utilize...  ...client needs and expectations. Ability to assist with the QA/QC process. Exceptional communication skills are required. Ability... 
    Water
    Work at office
    Local area
    Flexible hours

    RTM Engineering Consultants

    Corona, CA
    3 days ago
  •  ...License Class “C”  ·         Proof of US citizenship  Duties:  ·         Assist in the improvement, maintenance, and repair of water mains, metering service, fire hydrants, etc. ·         Assist in the operation of power-driven equipment ·         Other duties... 
    Water

    Santa Ana River Water Company

    Eastvale, CA
    4 days ago
  • $120k - $160k

     ...development including design of drainage and stormwater systems, water systems, sanitary sewer systems, parking and roadways Utilize...  ...expectations. Ability to accurately and consistently execute QA/QC processes. Exceptional communication skills are required.... 
    Water
    Work at office
    Local area
    Flexible hours

    RTM Engineering Consultants, LLC

    Corona, CA
    7 days ago
  • $25 per hour

     ...Water Treatment System Operator We are looking for a full-time Water Treatment System Operator, who will work directly on treatment...  ...treatment systems. Collect water samples and coordinate laboratory analysis. Self-perform periodic maintenance activities and manage... 
    Water
    Full time
    For subcontractor
    Remote work
    Night shift
    Day shift

    Onterris

    Corona, CA
    3 days ago
  • $25 per hour

     ...environment every step of the way. We are looking for a full-time Water Treatment System Operator , who will work directly on...  ...water treatment systems. Collect water samples and coordinate laboratory analysis. Self-perform periodic maintenance activities and manage... 
    Water
    Full time
    For subcontractor
    Remote work
    Night shift
    Day shift

    Montrose Environmental

    Corona, CA
    5 days ago
  • $22 - $25 per hour

     ...Quality Control Lab Technician The Quality Control Lab Technician is responsible for conducting...  .... Key Responsibilities Laboratory & Product Testing Perform standard laboratory...  ...: Riverside, CA 92504 Reports To: QC Manager Great Hire is an equal... 
    Local area
    Immediate start
    Flexible hours
    Shift work
    Weekend work

    Great Hire HR Solutions

    Riverside, CA
    1 day ago
  • $20 - $25 per hour

     ...QC Lab Technician Laboratory Chino , CA, US ~ Added - 20/07/2026 Pay Rate Low: 20 | Pay Rate High: 25 Our client, a leading personal care manufacturer, is looking to hire a QC Lab Technician to join their team in Pomona, CA! Location: Pomona, CA Pay... 
    Contract work
    Monday to Friday

    Astrix Technology

    Chino, CA
    4 days ago
  •  ...g., CIP, flavor changes, sanitizing, setting formulas, etc.) * Experience operating testing instruments (e.g., Carbo Qc, HPLC, Densitometers, Water Testing, etc.) * Experience following standards of operations (SOPs) (e.g., following procedures, etc.) * Experience... 
    Water
    Shift work

    PepsiCo

    Riverside, CA
    3 days ago
  • $150k - $225k

    Current job opportunities are posted here as they become available. MWH is a leading water and wastewater treatment-focused general contractor in the US with a rich history dating back to the 19th century. Fueled by the mission of Building a Better World , our teams are... 
    Water
    Contract work
    Temporary work
    For contractors
    Flexible hours

    MWH Constructors, Inc.

    Corona, CA
    1 day ago
  •  ...expertise across HDR’s business groups (Transportation, Resources, Water, BES, Architecture, and Federal). This individual will work with...  ...and Business leadership for periodic project reviewsImplement QA/QC proceduresSupervise large project staffs and act as mentor for... 
    Water
    Work at office
    Local area

    HDR

    Riverside, CA
    1 day ago
  • $150k

     ...dam construction and rehabilitation, power transmission and distribution, tunneling, inland marine, oil, gas, utility, and sewer and water pipeline projects. We offer competitive salaries, profit sharing, 401(k)s, a generous health plan, annual bonuses, and challenging... 
    Water
    Contract work
    For contractors

    Barnard Construction

    Corona, CA
    1 day ago
  • $35.01 per hour

     ...military, veterans, and first responders, to emergency drinking water donations and responsible drinking programs, we are guided by...  ...could be your last stop in fulfilling your career. Our Maintenance Technicians are the key in guaranteeing that our quality is where it needs... 
    Water
    Night shift
    Weekend work
    Day shift

    Anheuser Busch Inc

    Eastvale, CA
    4 days ago
  •  ...Quality Assurance/Lab TechnicianThe Quality Assurance/Lab Technician at Developlus Inc. ensures the consistent quality of production by...  ...which may include performing duties in the assembly line and laboratory as needed. The Quality Assurance/Lab Technician will report directly... 
    Contract work
    Work at office

    Developlus

    Corona, CA
    3 days ago
  •  ...contract complianceMonitor team performance and establish a robust QA/QC program to meet client expectationsMonitor the financial...  ...or owner program management team of at least one [transportation/water/resources] infrastructure program(s) with a capital value of $1 billionKnowledgeable... 
    Water
    Contract work
    Work at office

    HDR

    Riverside, CA
    14 hours ago
  •  ...department. We are seeking a detail-oriented Quality Control Technician for work in the San Diego, Orange County , Desert , and Inland...  ...all fixtures to confirm proper operation and drainage Test water heaters to ensure correct installation, functionality, and... 
    Water

    Plumbing Concepts

    Corona, CA
    15 days ago
  •  ...Overview We are on the lookout for a dedicated Medical Lab Technician , someone who marries curiosity with precision in each vital...  ...You'll Do Carry out routine and advanced clinical laboratory tests in various areas such as chemistry, hematology, and immunology... 
    Full time
    Traineeship
    Local area
    Weekend work
    Day shift

    MLee Medical Employment

    Riverside, CA
    3 days ago
  •  ...We invite you to join our team as a passionate Medical Laboratory Technologist , where your innovative spirit can thrive amidst...  ...Making a Lasting Impact in the Community Your role as a lab technician transcends mere technical work-each action contributes significantly... 
    Full time
    Seasonal work
    Local area
    Weekend work
    Day shift

    MLee Medical Employment

    Riverside, CA
    1 day ago
  •  ...Job Title Job Description Perform laboratory testing - Conduct clinical laboratory tests in chemistry, hematology, microbiology, urinalysis, immunology, serology, and blood banking, including adapting procedures for unusual specimens or situations. Evaluate test... 

    Department of Health and Human Services

    Riverside, CA
    5 days ago
  •  ...Overview We are in search of an exceptional Medical Lab Technician who skillfully combines curiosity with meticulous precision-someone...  ...Conduct routine and specialized clinical laboratory tests-including chemistry, hematology, and immunology-adhering... 
    Full time
    Local area
    Weekend work
    Day shift

    MLee Medical Employment

    Riverside, CA
    3 days ago
  •  ...Join a Dynamic Diagnostic Team in Riverside Overview In the vibrant city of Riverside, we are looking for a Clinical Laboratory Technician who thrives on curiosity and precision. This full-time, first-shift position at a busy community hospital offers an... 
    Full time
    Local area
    Weekend work
    Day shift

    MLee Medical Employment

    Riverside, CA
    1 day ago
  •  ...Ignite Your Passion in the Laboratory: Embark on a New Adventure in Riverside Overview We are on the lookout for an extraordinary Clinical Lab Technician who marries curiosity with accuracy, ready to make an impactful difference in patient care, one test at a... 
    Full time
    Local area

    MLee Medical Employment

    Riverside, CA
    2 days ago
  •  ...construction experience preferred Ability to establish relationships and lead people Specific roles may require relocation Division: Water Job Category: Project Management Job Type: Full_time Please note that job titles may span more than one career level. The actual... 
    Water
    Full time
    Contract work
    Work experience placement
    For subcontractor
    Work at office
    Relocation

    Walsh Group

    Corona, CA
    5 days ago
  •  ..., Georgia Phoenix, Arizona Tacoma, Washington Riverside, California Full time R47265 Xylem is a Fortune 500 global water solutions company dedicated to advancing sustainable impact and empowering the people who make water work every day. As a leading water... 
    Water
    Full time
    Work at office
    Remote work
    Relocation package

    Xylem

    Eastvale, CA
    4 days ago
  • Great Hire seeks a Quality Control Lab Technician in Riverside, CA to conduct comprehensive testing across the production cycle, ensuring adherence...  ...proactive quality improvement. The role requires 3+ years in QC labs and food manufacturing, along with 2+ years in quality... 

    Great-Hire

    Riverside, CA
    3 days ago
  •  ...WaterWisePro is seeking an experienced Chief Plant Operator to oversee the District’s water production, treatment, storage, and distribution, ensuring regulatory compliance and safe operation of SCADA and telemetry systems. This leadership role includes staff supervision... 
    Water
    For contractors

    WaterWisePro

    Jurupa Valley, CA
    2 days ago
  •  ...including shoring, shielding, benching, and Competent Person requirements. Oversee installation of underground utilities including water, sewer, storm drain, and related systems as assigned. Direct operators during trenching, backfill, compaction, and grading... 
    Water
    Contract work

    Boudreau Pipeline

    Corona, CA
    6 days ago
  • $185k - $200k

     ...Sr. Plant ManagerShape the Future with Us. At Lubrizol, we're bringing to life the chemistry behind clean water, efficient transportation, reliable infrastructure, critical medicines, and the products people rely on every day through science, sustainability, and a culture... 
    Water
    Full time
    Work at office
    Flexible hours

    The Lubrizol Corporation

    Corona, CA
    1 day ago
  • $20 - $24 per hour

    Do you have experience as a Waterjet operator? Do you have experience with CNC? Do you have experience in the aerospace industry? We want to talk to you The company will consider training those who have exceptional motivation and learning skills and have CAD schooling...
    Water
    Immediate start
    Shift work

    FasTemps

    Corona, CA
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to QC Laboratory Technician (RM-Water). Be the first to apply!