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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 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

Technician II (Isolators) - Frederick, MD
Description: Perform routine and moderately complex animal husbandry and other production duties. Maintain supplies and environment of environmentally controlled work area(s). Assist in providing training to entry-level employees. Perform routine and moderately complex animal husbandry duties and monitor daily health and welfare to ensure quality and health of product. Perform physical environment cleanliness and upkeep and maintain r...
Reference Code: 140910
Aquatic Specialist II - Bethesda, MD
Description: Review, comprehend and comply with all SOP's and quality assurance standards pertaining to specific area. Care for and maintain laboratory animals in accordance with Animal Welfare Act and the “Guide for the Care and Use of Laboratory Animals, as well as, NIH policies and Guidelines and other pertinent regulations and policies. Provides husbandry support for aquatic species: Zebrafish, Xenopus laevis, and Xenopu...
Reference Code: 140876
Administrative Assistant - Frederick, MD
Description: Provide general clerical support including: receipt and distribute of mail; take phone messages and handle routine matters as they arise; relay information and requests to department members and follow-up as needed; make meeting and travel arrangements; answer routine/basic questions and provide assistance relating to office operations and established policies and procedures; assist with phone coverage for others as neede...
Reference Code: 140889

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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