Cagewash Attendant I

Req ID #:  215464

Watertown, MA, US, 02474

For 75 years, Charles River employees have worked together to assist in the discovery, development and safe manufacture of new drug therapies. When you join our family, you will have a significant impact on the health and well-being of people across the globe. Whether your background is in life sciences, finance, IT, sales or another area, your skills will play an important role in the work we perform. In return, we’ll help you build a career that you can feel passionate about.

Job Summary

Provide cleaning and maintenance of laboratory animal caging, equipment and cage preparation areas as well as cleaning of animal support areas under supervision. Provide quality assurance to the cagewash area.

•    Dumps and scrapes soiled bedding from caging and prepares caging for cagewash under supervision. 
•    Sanitizes caging and related equipment using cage washers, pressure washer or hand washing as required. 
•    Properly disposes of soiled bedding and waste in specified receptacles. 
•    Cleans and sanitizes cage preparation and storage areas. 
•    Monitors and records results of cagewash water temperature and cleaning results using provided supplies such as temperature dots/strips, cultures. 
•    Ensures that all logbooks, checklists and other records are completed in a timely fashion.
•    Flushes all animal racks. 
•    Beds and prepares clean cages for use. 
•    Ensures the correct times are selected and are used for each cagewash load. 
•    Ensures proper amounts of chemicals are present. Reports any chemical needs to the supervisor. 
•    Reports mechanical failures promptly and properly to the supervisor.
•    Performs all work assignments in accordance with guidelines established by federal, state and local regulatory agencies. Performs animal husbandry duties including but not limited to preparation and actual changing of cages and related cage accessories, feeding, and manual watering or monitoring/testing automatic watering devices. i.e., 
•    Prepares caging for cagewash, including scraping floor grids, breaking down caging and dumping pans or scraping cages.
•    Functions as a team member and maintains professional conduct at all times. 
•    Assists housekeeping duties such as trash collection and cleaning animal facility laboratories, offices and ancillary areas. 
•    Maintains equipment used in performance of work and/or reports the problem to supervisor. 
•    Operate Techniplast washer in accordance with SOP
•    Operate and maintain Steris autoclaves. 
•    Performs microbiological sampling in accordance with SOP

Job Qualifications

•    Education:  High school diploma or General Education Degree (G.E.D.)
•    Experience:  N/A
•    Certification/Licensure: None
•    Other:  Ability to read, write, understand and follow directions. Ability to recognize and communicate verbally and/or in writing, problems requiring the attention of high level personnel in a timely and appropriate manner.



•    While performing the duties of this job, the employee is regularly required to walk; use hands to finger, handle, or feel objects, tools, or controls.  The employee frequently is required to stand; sit; reach with hands and arms; and stoop, kneel, crouch, or crawl.
•    Specific vision abilities required by this job include close vision and the ability to adjust focus.
•    The employee must regularly lift up to 50 pounds and/or move racks and carts with supplies and equipment weighing more than 50 pounds.




•    While performing the duties of this job, the employee regularly works in high, precarious places and may be exposed to fumes or airborne particles.  The employee occasionally works near moving mechanical parts and is occasionally exposed to wet and/ or humid and temporarily hot or cold temperature conditions, toxic or caustic chemicals, biohazardous materials / agents, infectious disease, and risk of electric shock.
•    The noise level in the work environment is usually moderate to high.
•    The employee must be approved to wear respiratory, eye and hearing protection.

About Insourcing Solutions
Charles River Insourcing Solutions℠ can streamline research by delivering operational and cost efficiencies through the strategic insourcing of GMP, GLP and non-GLP research services from discovery through safety assessment. Insourcing Solutions℠ provides you with the ability to maintain control of your facility and expertise while leveraging available space.

About Charles River
Charles River is an early-stage contract research organization (CRO). We have built upon our foundation of laboratory animal medicine and science to develop a diverse portfolio of discovery and safety assessment services, both Good Laboratory Practice (GLP) and non-GLP, to support clients from target identification through preclinical development. Charles River also provides a suite of products and services to support our clients’ clinical laboratory testing needs and manufacturing activities. Utilizing this broad portfolio of products and services enables our clients to create a more flexible drug development model, which reduces their costs, enhances their productivity and effectiveness to increase speed to market.


With over 20,000 employees within 110 facilities in over 20 countries around the globe, we are strategically positioned to coordinate worldwide resources and apply multidisciplinary perspectives in resolving our client’s unique challenges. Our client base includes global pharmaceutical companies, biotechnology companies, government agencies and hospitals and academic institutions around the world.


At Charles River, we are passionate about our role in improving the quality of people’s lives. Our mission, our excellent science and our strong sense of purpose guide us in all that we do, and we approach each day with the knowledge that our work helps to improve the health and well-being of many across the globe. We have proudly supported the development of 86% of the drugs approved by the FDA in 2021.


Equal Employment Opportunity
Charles River Laboratories is an Equal Opportunity Employer - all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin, veteran or disability status.


If you are interested in applying to Charles River Laboratories and need special assistance or an accommodation due to a disability to complete any forms or to otherwise participate in the resume submission process, please contact a member of our Human Resources team by sending an e-mail message to This contact is for accommodation requests for individuals with disabilities only and cannot be used to inquire about the status of applications.


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