Lab Assistant Mammalian Cell Banking

Req ID #:  221805

Malvern, PA, US, 19355

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

Assist technicians in performing routine laboratory tasks.


  • Performance of the following, as applicable: prepare media and laboratory solutions; prepare 
  • and titrate microbial and viral stocks; prepare and stain spot slides; prepare primers and 
  • probes; isolate and purify DNA, RNA, and/or proteins.
  • Coordinate instrument maintenance; calibrate laboratory equipment; record laboratory 
  • temperature readings.
  • Order, log in and restock supplies; remove laboratory waste; coordinate shipments; 
  • interact with personnel from outside the department.
  • Make detailed observations and maintain clear, accurate and timely documentation of all 
  • laboratory work.
  • Maintain a safe working environment by adhering to company policies and procedures. 
  • Actively participate in laboratory maintenance.
  • Efficiently organize, prioritize and plan work schedule.
  • Perform daily cleaning and monitoring of laboratories and clean rooms. 
  • Perform all other related duties as assigned

Job Qualifications

  • Education: High School or G.E.D. or higher education. 
  • Experience: 0-1 years related experience in industry.
  • An equivalent combination of education and experience may be accepted as a satisfactory 
  • substitute for the specific education and experience listed above.



  • General laboratory working conditions.
  • The noise level in the work environment is usually quiet.



  • While performing the duties of this job, the employee is regularly required to talk, hear and lift. 
  • Must be able to regularly wear safety equipment and clothing in compliance with OSHA 
  • regulations and company SOPs.
  • Specific vision abilities required by this job include close vision and the ability to adjust focus.
  • Regularly record data by hand or on a computer terminal.
  • Must be able to regularly stand approximately 4 hours a day.
  • Must be able to regularly communicate with other personnel and sponsors regarding all 
  • aspects of the day to day operations of the Laboratory.
  • Must be able to regularly read and follow Standard Operating Procedures.
  • Regularly stand, walk, bend, reach overhead, push/pull and occasionally lift/carry objects of up to 50 lbs.



  • Some weekend work may be required

Compensation Data

The pay range for this position is $19.00 to $20.28 an hour. Please note that salaries vary within the range based on factors including, but not limited to, experience, skills, education, and location.


Lead - We lead when we advocate our purpose and model our values, when we deliver innovation, when we embrace change, and when we appreciate and celebrate the great work of others.
Care - We show we care when we respect each other, our animals and the communities where we work and live, when we create a positive healthy workplace, when we are mindful of our compliance standards, and when we choose to do the right thing.
Collaborate -We collaborate when we partner with each other and promote teamwork, when we communicate clearly and effectively across the hall or around the globe, and when we welcome all forms of diversity and encourage inclusiveness.
Own - We act like owners when we hold ourselves accountable for our actions, when we respond to internal and external client needs with speed and accuracy, when we set and achieve meaningful goals, and when we strive towards continuous improvement.

About Biologics Testing Solutions
With more than 50 years of experience and proven regulatory expertise, the Charles River Biologics group can address challenging projects for biotechnology and pharmaceutical companies worldwide. Offering a variety of services such as contamination and impurity testing, protein characterization, bioassays, viral clearance studies and stability and lot release programs, we support clients throughout the biologic development cycle, from the establishment and characterization of cell banks through preclinical and clinical studies to marketed products. Whether clients need stand-alone services, a unique package of testing, or insourced support, our Biologics group can create a custom solution to suit their needs.  Each year more than 20,000 biologic testing reports are sent each and over 200 licenses products are supported by our biologics testing solutions team.


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 [email protected]. This contact is for accommodation requests for individuals with disabilities only and cannot be used to inquire about the status of applications.


For more information, please visit

Nearest Major Market: Philadelphia

Job Segment: Pharmaceutical, Lab Assistant, Laboratory, Biotech, Science, Research