Jobs and careers at Charles River
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About Charles River

For over 65 years, Charles River employees have enjoyed rich careers working together to assist in the discovery, development and safe manufacture of new therapies for the patients who need them.

When you join Charles River, you become part of an international family that has had a significant impact on the health and well-being of our families, friends and colleagues across the globe. In the past few years alone we’ve helped our clients with the critical research required to develop new, approved treatments for cancer, weight loss, cystic fibrosis, leukemia, IBS, epilepsy, Cushing’s disease and other conditions.

Working at Charles River provides you with a chance to make a difference in the world. Whether your background is in life sciences, finance, quality, IT, sales or another area, your skills will play an important role in supporting the life-saving and valuable work we perform on behalf of our clients. In return, we’ll offer you opportunities to learn, grow and build a career that you can feel passionate about.

Equal Employment Opportunity

Charles River takes affirmative action to ensure equal employment opportunity for minorities, women, disabled individuals, and covered veterans (recently separated veterans, Armed Forces service medal veterans, disabled veterans, and other protected veterans) in accordance with Executive Order 11246, Section 503 of the Rehabilitation Act of 1973 and the Vietnam Era Veterans' Readjustment Assistance Act of 1974. If you would like more information about our affirmative action program for veterans and disabled individuals, please contact Human Resources.


Charles River is committed to working with and proving reasonable accomodation to individuals with disabilities. If, because of a medical condition or disability, you need a reasonable accommodation for any part of the employment process, please email crrecruitment_US@crl.com or call (781) 222-6244 and let us know the nature of your request and your contact information.
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Recent Job Openings

Animal Care Assistant - Spencerville, OH
Description: Responsibilities: BASIC SUMMARY: Responsible for performing operational, administrative and technical tasks to provide comprehensive care for all species of laboratory animals at the site, including: feeding/watering, sanitizing primary and secondary enclosures, environmental enrichment, handling and restraint and related tasks. Assist with the movement of animals and stocking of supplies. ESSENTIAL DUTIES AND RESPONSIBIL...
Reference Code: 140813
Research Technician Assistant - Reno, NV
Description: Responsibilities: BASIC SUMMARY: Collect and record data in the performance of studies. Responsible for handling and restraining animals, clinical observations, sample collection, monitoring food consumption, animal husbandry, and performing accurate data collection and reporting. ESSENTIAL DUTIES AND RESPONSIBILITIES: Observe animals for general health and overall well being. Collect and record research data and biologic...
Reference Code: 140823
Animal Caretaker - Baltimore, MD
Description: Providing animal care and husbandry services, including but not limited to: feeding/watering animals; handling and restraint of animals; cage & bedding changeouts; cleaning/sanitizing animal rooms, hallways, ancillary equipment; monitoring environmental parameters as required; assessing the presence of vermin and effectiveness of control efforts; performing animal health checks; assisting in the local delivery/transpo...
Reference Code: 140824

Join Us

At Charles River, we take a passionate approach to improving human and animal health. Our motivating force is the knowledge that our high quality of work provides people with the potential to live healthier and better lives. Scientific excellence and outstanding customer service are the hallmarks of Charles River. As one of the world’s largest Contract Research Organizations and a market leader in the provision of product development services, Charles River is able to offer you the chance to build on your skills and knowledge and work with world-class experts. Learn more about the many job opportunities Charles River has available today!

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