Senior Supervisor

Job Summary

We are seeking an experienced Senior Supervisor to join our Insourcing Solutions team, located in Cambridge, MA.

As the Senior Supervisor
, you will oversee the activities of the technical, husbandry, and cage wash staff and act as the primary liaison for on‑site clients and staff for research needs. You will collaborate with clients and senior Insourcing Solutions management to maintain operational performance levels consistent with and according to client expectations and company standards, and assist in addressing unique and difficult client requests, animal care and welfare issues.

• Supervise onsite Charles River Laboratories staff, ensuring adherence to SOPs and safety protocols.
• Conduct performance management, coaching, and employee development.
• Manage scheduling, time‑off coordination, and timecard approvals.
• Partner with HR on hiring, onboarding, and personnel actions.
• Interview and select qualified non‑exempt personnel.
• Identify training needs and ensure staff receive appropriate onboarding and ongoing training.
• Maintain training records and support development programs for staff.
• Serve as the primary point of contact for on‑site clients.
• Respond proactively to client requests, concerns, and inquiries.
• Facilitate the resolution of problems related to the allocation of space, use of equipment, efficient use of personnel, diagnosis of and control of disease, and provisions of animal care and technical requests.
• Conduct periodic meetings with clients and staff to communicate operational updates and projects.
• Analyze operations and recommend efficiency improvements.
• Ensure optimum performance of staff function.
• Develop, implement, and update SOPs.
• Generate reports and maintain documentation as required.
• Oversee animal care operations including:
  • Feeding, housing, and sanitation.
  • Equipment and facility maintenance.
  • Coordinate animal ordering, intake, and movement within the facility.
  • Ensure proper inventory and supply procurement.
• Ensure compliance with:
  • AAALAC, IACUC, and USDA standards.
  • Internal SOPs and biosafety protocols.
  • Maintain inspection readiness and support regulatory audits.

To qualify for this role, candidates must have one of the following combinations of education and experience:

• Education and Experience
  • B.S./B.A. degree in Biological Sciences or related field plus 4 years of previous laboratory animal research, including 2 years in supervisory experience.
  • Associate’s degree in veterinary technology or equivalent college‑level program plus 5 years of previous laboratory animal research experience, including 2 years in supervisory experience.
  • High School Diploma and at least 6 years of previous laboratory animal research experience, including 2 years in supervisory experience.
• Certification/Licensure
  • AALAS certification at the LAT level is required; LATG preferred.

The pay range for this position is $95k-105k annually. Salaries vary within the range based on experience, skills, education, certifications, and location.

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

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 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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