Senior Biologist

Job Locations US-VA-Manassas
Role Type
Manufacturing, Science & Tech
Job ID
Scientific Background
Biochemistry, Bioengineering, Biologics, Biology, Bioprocessing, Bioproduction, Biotechnology, Cancer Biology, Cell Biology, Regulatory Science


Ready to shape the future of science and global health? ATCC, a pioneer in biomaterials manufacturing, is seeking a Senior Biologist with a specialty in Cell Biology for an onsite role based in Manassas, VA.   

We're looking for an MSAT (Manufacturing Science and Technology) Senior Biologist with experience in cell biology and cell culture to manufacture biological materials and standards with a focus on continuous improvement.  You'll work independently to support the production of biological cultures and derivative products through assay development and tech transfers, as well as collect and record data. You will provide training and guidance to the team as appropriate Ideal candidate will have BS or MS in Cell Biology or related field and hands on cell culture experience.  Apply today for immediate consideration!  


  • Manufacturing Operations: Manufacturing or quality control (QC) testing of biological products by following standard operating procedures (SOPs), work instructions, and other controlled documents. Maintain laboratory safety, operations, equipment, and supplies.  
  • Assay Development and Process Optimization: Lead the development and validation of new assays for monitoring product quality. Optimize the manufacturing processes of biological products, ensuring efficiency, scalability, and best growth conditions. 
  • Documentation and SOPs: Maintain accurate and up-to date documentation, including batch records, standard operating procedures (SOPs), and work instructions. Create SOPs to reflect process improvements and changes. 
  • Technology Transfer: Manage the technology transfer of new processes, equipment, and methods from R&D or external partners to manufacturing facilities.  
  • Validation Activities: Plan and execute process validation activities, including process qualification and validation protocols. Generate validation reports and maintain documentation in compliance with regulatory requirements. 


  • Bachelor's degree in a scientific field with 5+ years of relevant experience or equivalent
  • Extensive experience with cell culture is required.
  • Attention to detail
  • Ability to multitask
  • Ability to adhere to corporate policies and procedures
  • Process validation and tech transfer experience is preferred.


We Invest in You 


  • Health & Wellness: 
    • Comprehensive medical coverage and company paid Life Insurance, Disability Insurance & AD&D
    • Work life balance with Paid Holidays and PTO
    • Fitness and cell phone subsidies, and additional benefits such as Aflac, legal services, and pet insurance
    • Employee Assistance Program offering around-the-clock counseling
  • Financial security: 
    • 401(a) (6% employer contribution) and 403(b) (2% match) retirement plans
    • Exceptional career advancement opportunities, recognition, and rewards
    • Corporate bonus program
  • Mission Focused:
    • Non-profit organization supporting critical life science research
    • We give scientists the tools they need to make discoveries that improve and save lives
    • Contribute to community involvement and social responsibility


Join ATCC, where we fuel your success, well-being, and development.  We're a mission focused non-profit Equal Opportunity Employer, championing diversity and inclusivity. When you work at ATCC, you become a part of that mission, one we’ve committed to for almost 100 years. Shape the future of science with us. 


ATCC is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class. 


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