Associate Scientist II

Charles River Laboratories International
Charles River Laboratories International

Charleston, SC, USA

USD 79k-85k / year

Posted on Aug 21, 2026

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 Overview

In collaboration with senior laboratory members execute technical work requiring knowledge in endotoxin detection. Associate Scientist 2s will contribute to the development, manufacture and testing of Microbial Solutions’ product lines. Responsible for authoring protocols, performing experiments, analysing results, along with timely and accurate documentation of experimental results.

Essential Duties and Responsibilities

• Author and execute protocols of routine and non-routine experiments.• Organize and summarize data using scientific and statistical techniques.• Assist in data analysis and presenting results to the team.• Assists in the development of new technologies, troubleshooting, CAPA investigations, root cause analyses, and pilot batch manufacturing in the fields of: o LAL (Limulus Amebocyte Lysate) o PTS o Recombinant proenzymes o Biochemistry o Microbiology• Participate in new product transfer from R&D to Manufacturing, including: o Pilot batch manufacturing o Stability / equivalency studies o Development of in-process and QC test methods and specifications• Fully capable of operating all laboratory equipment and software with demonstrated proficiency.• Routine general lab work (solution preparation, autoclaving and depyroginating lab ware, keeping bench clean, cleaning of objects used for experiments and disposal of waste)• Assist in ordering laboratory consumables, preparation of laboratory consumables, as well as cleaning of the laboratory.• Assist in maintaining laboratory equipment.• Ensure proficiency and compliance with protocols and all applicable SOPs.• Responsible for documentation as required by FDA, company policy and cGMP.

Qualifications

• Bachelor’s degree in a life science or related discipline, with at least 1 year of related experience in a laboratory.General Skills & Knowledge• Highly collaborative and self-motivated teammate.• Critical scientific thinking.• Ability to work in a highly productive and fast-paced environment.• Ability to work productively under deadlines.• Attention to detail.• Willingness to learn.Equipment & Software• Microsoft Office Products• General laboratory equipment (i.e. balances, pH meters, laminar flow hoods, pipettes, plate readers, etc.)• Well versed in CRL laboratory equipment and software including but not limited to: Endoscan V, BioTek plate readers, microfluidic cartridge readers.Specific Skills • Perform endotoxin detection testing using kinetic, turbidimetric and multifluidic cartridges.Job Specific Requirements• Problem solving.• Communicates well co-workers.• Analyse experimental data, and present findings in team meetings.• Maintain accurate and detailed laboratory records.• Technical writing skills:o SOPs, protocols, batch records and final reports

The pay range for this position is $79,000 to $85,000. Please note that salaries vary within the range based on factors including but not limited to, experience, skills, education and location.

About Microbial SolutionsOur Microbial Solutions business group has a comprehensive portfolio of endotoxin testing, microbial detection and microbial identification products and services is unlike any other, and has been purposefully designed to meet the complex and ever-changing needs of the industry. We help clients to ensure product safety and quality with easy-to-use yet robust testing solutions that satisfy regulatory requirements, support critical decision making and improve operational efficiencies.

About Charles RiverCharles 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 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. And in 2019, revenue increased to $2.62 billion.

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 80% of the drugs approved by the FDA in the last 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 OpportunityCharles 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.

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 crrecruitment_US@crl.com. 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 www.criver.com.