2026 Summer Intern - Mechanical Engineering Intern

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

We are seeking a Mechanical Engineering Intern to assist our Global Engineering team (remote).

An Internship/Co-op at Charles River Labs provides global, real world, hands-on experience for college students looking to gain knowledge and skills required for your career field of choice, while giving you an unparalleled internship experience. We are dedicated to ensuring our Co-op/Intern population can experience the ability to Grow, Perform, and Succeed during their time on board.

The Mechanical Engineering Intern will support ongoing efforts to develop and enhance the site facility analytics database, participate in project development meetings and be utilized for data collection, data manipulation and results presentation. The intern will work directly with the Charles River Labs Engineering and Sustainability Teams. The intern will also work with project engineering teams to provide assistance as needed for new construction and facility expansion projects.

The intern will have the opportunity to help Charles River Labs in a real-world environment. The position will provide opportunities to present to small groups in a safe and encouraging environment to help build on public speaking and executive presence.

Job Qualifications

The following are minimum requirements related to the Mechanical Engineering intern position.

• Student currently enrolled in an accredited college/university degree program pursuing a Bachelor's degree in Mechanical Engineering.

• Minimum GPA of 3.0

• Ability to fulfill internship position obligations based on summer break timing, potentially May - August

• Effective communication and listening skills in a teamwork environment

• Demonstrated ability to work on multiple projects with a strong attention to detail

• Possess proficiency with AutoCAD, Microsoft Word, Excel and Power Point

The pay range for this position is $21.00 - $24.00 per hour. Please note that salaries vary within the range based on factors including, but not limited to, experience, skills, education, certifications, and location.

Must be authorized to work in the United States without a sponsor visa.

About Corporate Functions

The Corporate Functions provide operational support across Charles River in areas such as Human Resources, Finance, IT, Legal, Sales, Quality Assurance, Marketing, and Corporate Development. They partner with their colleagues across the company to develop and drive strategies and to set global standards. The functions are essential to providing a bridge between strategic vision and operational readiness, to ensure ongoing functional innovation and capability improvement.

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 worked on 80% of the drugs approved by the U.S. Food and Drug Administration (FDA) in the past five years.

We're committed to providing benefits that elevate your quality of life. Based on your position these may include: bonus/incentives based on performance, 401K, paid time off, stock purchase program, Health and wellness coverage, employee and family wellbeing support programs, and work life balance flexibility.

Equal Employment Opportunity

Charles River is an equal opportunity employer and is committed to providing equal employment opportunities for all qualified applicants and employees without regard to race, color, sex, religion, national origin, ancestry, age, mental or physical disability, family status, pregnancy, military or veteran status, or any other characteristic protected by federal, state, or local laws.

It is unlawful in some states (including Massachusetts) to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

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 [email protected]. 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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