Alternative Host BioProcessing Scientist - Onsite - Marlborough, MA

As part of this global team, we are seeking a highly motivated individual to drive research in next-generation bioprocessing using novel alternative host systems. These hosts include microbial strains such as bacteria, yeast, and filamentous fungi, with the goal of enabling high protein expression and reducing the cost of protein production. This role will contribute to the development of new technologies across the bioprocess workflow, including improved screening approaches as well as upstream and downstream processing innovations.

Sartorius is one of the world’s leading technology providers to the life sciences and biopharma industries, actively shaping dynamic, innovative, and high-growth markets. To accelerate the creation of breakthrough solutions, Sartorius has established a global Corporate Research initiative focused on identifying emerging trends and cutting-edge opportunities and rapidly translating them into next-generation technology solutions.

What you will accomplish together with us:

• Design, execute, and optimize microbial bioprocesses across scales, including upstream and downstream.
• Create and execute process development for next generation bioprocessing of alternative hosts. This will include processing for next generation intensified mAbs as well as high value, difficult to express targets such as growth factors and cytokines.
• Preparation of fermentation/ cell culture medium, buffer solutions, consumable materials, etc. as needed to support experiment execution, including cell harvest, and target capture.
• Maintain a clean and organized laboratory space. Participate in stocking up consumables.
• Organize technical data and provide oral presentations or technical reports to communicate results, as required
• Apply metabolic and process knowledge to support data-driven optimization and modeling efforts.
• Collaborate closely with data analysts, bioprocess engineers, and biologists on multidisciplinary projects.
• Contribute technically while effectively coordinating activities in a fast-paced research environment across multiple sites, organizations, and disciplines.
• Actively engage with internal teams across Sartorius scientific community, with external experts and customers
• In summary this role will support collaborations within Corporate Research and across Sartorius in technology assessment leading to new business opportunities.

What will convince us:

• Master’s degree with 4+ years of industry experience or PhD in Biotechnology, Microbiology, Biomedical Engineering, Chemical Engineering, Biochemical Engineering, or a related field,
• Demonstrated hands-on experience in microbial and/or fungal bioprocessing, with scale-up expertise from laboratory to 50–200 L bioreactor systems.
• Strong understanding of strain development, upstream microbial process optimization and downstream purification.
• Solid knowledge of microbial metabolism, with the ability to support mechanistic model development for process optimization and simulation.

We value:

• Strong ability to prioritize tasks and balance hands-on technical work with coordination and communication responsibilities.
• Excellent networking and communication skills, both internally and externally.
• Operatively oriented, proactive in problem-solving, and driven by a positive, solution-focused mindset.
• Comfortable working in dynamic, collaborative, and multidisciplinary environments.
• Identification with our core values: Sustainability, Openness, Enjoyment

Compensation for this position will be a base salary between $95,000 - $115,000 plus bonus depending upon experience and qualifications.

What We Offer

As a growing global life science company, with our stock listed on the German DAX and TecDAX , Sartorius offers a wide range of benefits:
Personal and Professional Development: Mentoring, leadership programs, internal seminar offerings
Worklife Balance: Paid vacation, sick time, corporate holidays and community service day; as well as flexible work schedules
Making an Impact Right from the Start: Comprehensive onboarding, including a virtual online platform
Welcoming Culture: Mutual support, team spirit and international collaboration; communities on numerous topics such as “Coaching”, “Agile Working” and a “Businesswomen’s Network”
Health & Well Being: Wide selection of health and well-being support such as a variety of medical plans to choose from, dental, vision, EAP, and other wellness programs.
Intelligent Working Environment: Working in smart