Principal Downstream Scientist – mRNA purification

Principal Downstream Scientist – mRNA purification
Organization: GlaxoSmithKline, LLC
Location: Massachusetts
Posted until: 11/13/2025
Employment type: Full time
Organization type: Industry

Full description:

Are you ready to make a meaningful impact in the development of mRNA-based vaccines? As a Principal Downstream Scientist specializing in mRNA purification, you will play a key role in advancing innovative vaccine platforms. You will design and optimize purification processes, collaborate with cross-functional teams, and contribute to the development of scalable solutions. We value candidates who are driven, collaborative, and eager to bring fresh ideas to the table. This role is based in the United States and offers an exciting opportunity to work at the forefront of vaccine development.


Key Responsibilities:

  • Design, execute, and analyze experiments to develop and optimize mRNA purification processes.
  • Ensure processes are scalable and phase-appropriate for clinical manufacturing.
  • Collaborate with global teams, including analytical R&D, GMP, and process development colleagues.
  • Drive innovative solutions to improve purification techniques and meet project milestones.
  • Stay current with industry trends and emerging technologies in downstream processing.
  • Maintain detailed documentation to ensure data integrity and compliance.


Basic Qualifications:

  • Master’s or PhD. degree in Molecular Biology, Biotechnology, Bioengineering, Chemical Engineering, or a related field.
  • Five years (Master's) or Three years (PhD.) of industry experience in downstream process development for large biomolecules, including mRNA or pDNA.
  • Hands-on experience with purification techniques such as affinity capture, ion exchange, and hydrophobic interactions.
  • Three years of experience supporting CMC activities, including process and analytical development.


Preferred Qualifications:

  • PhD in Molecular Biology, Biotechnology, Bioengineering, Chemical Engineering, or a related field.
  • Experience with Quality by Design principles and DOE studies for process optimization.
  • Knowledge of regulatory guidelines (FDA/ICH/ISPE) for process validation and technology transfer.
  • Familiarity with nucleic acid analytical technologies.
  • Strong problem-solving skills and ability to work collaboratively in a matrixed environment.


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#Vx-Cam

Please visit GSK US Benefits Summary to learn more about the comprehensive benefits program GSK offers US employees.

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GlaxoSmithKline, LLC