Bioreactor Application & Testing Intern - Marlborough, MA

Overview

Sartorius has an onsite position available for a Bioreactor Application & Testing Intern at our Marlborough site. In this role, you will specialize in cultivating mammalian and microbial systems to generate high-quality data that advances the development of Sartorius's bioreactor solutions. Our team conducts rigorous process testing to optimize performance, validate new designs, and produce market-relevant datasets that support product innovation.

In close collaboration with customers, field teams, and global R&D groups, we translate experimental insights into practical solutions that enable more efficient and scalable bioprocessing.

Internship would start in August; duration is flexible, depending on availability.

Onsite role based at our Marlborough, MA site

• Assist in supporting defined projects with clear goals in upstream process development, aligned with project goals and timelines.
• Help in conducting bioreactor experiments (e.g., perfusion, fed‑batch) for mAbs, recombinant proteins, and other biologics.
• Support optimization of cell culture parameters for various mammalian cell lines (e.g., CHO, HEK) using Sartorius' next‑generation bioreactor systems.
• Assist in analyzing and interpreting experimental data, ensuring accurate documentation and reporting.
• Collaborate with cross‑functional teams, including downstream process development, automation, and analytics.
• Participate in technology transfer activities to internal and external partners.
• Prepare and substitute for lab assistants and technicians as required.

• Currently pursuing a BS/MS degree in science or related field.
• Able to take off a semester to work full time.
• Basic understanding of bioreactor operations and mammalian cell culture is a plus.
• Ability to assist in designing and executing experiments, analyze data sets, and troubleshoot process issues.

• Operatively oriented, proactive in finding solutions, and positive mindset.
• Analytical and conceptual thinker able to solve complex problems.
• Good written and verbal communication skills for technical and cross‑functional audiences.
• Proactive, results‑oriented, and able to work both independently and collaboratively.

• Work in a Biosafety Level 2 laboratory environment; occasional extended hours or weekends to support ongoing lab activities.

Compensation is up to $28 per hour, depending on experience and qualifications.

Sartorius is an equal opportunity employer and will consider all qualified applicants for employment without regard to race, color, religion, sex, national origin, age, protected veteran status or disability.