Principal Scientist, Vector Biology

Johnson & Johnson Johnson & Johnson · Pharma · Cambridge, MA +1

Seeking a Principal Scientist to lead receptor and viral-entry biology initiatives, focusing on translating mechanistic insight into therapeutic progress. Responsibilities include creating and validating cell-based assays for receptor localization and ligand/virus binding, dissecting entry pathways, and optimizing lentiviral transduction.

What you'd actually do

  1. Lead and contribute to research focused on the cellular and molecular mechanisms of enveloped virus entry.
  2. Design and execute experiments to characterize the interactions between viral glycoproteins and host cell receptors.
  3. Design, develop, and validate robust cell-based assays probing: receptor expression/localization and ligand/virus binding; internalization/endocytosis pathways; functional readouts by flow cytometry, high‑content/fluorescence microscopy, and reporter assays.
  4. Utilize lentiviral vector systems to study the transduction of target cells and to develop novel gene delivery platforms.
  5. Establish scalable, reproducible workflows and SOPs; implement assay performance criteria and QC.

Skills

Required

  • PhD in Cell Biology, Molecular Biology, Virology, Biochemistry, Biomedical Engineering or related field (or equivalent industry experience)
  • 3-6 years of relevant industry experience
  • mammalian cell culture
  • cell line engineering
  • quantitative cell-based assays
  • viral entry biology
  • lentiviral vectors
  • transduction workflows
  • data analysis
  • scientific communication

Nice to have

  • pseudovirus or live-virus entry/neutralization assays under BSL2/BSL2+
  • High‑throughput/automated assay development
  • liquid handling
  • screening experience
  • Record of publications/patents in receptor biology, viral entry, or vector technologies

What the JD emphasized

  • record of leading scientific projects and/or teams
  • Deep hands-on expertise in mammalian cell culture and cell line engineering
  • Proven track record developing and running quantitative cell-based assays for membrane proteins/receptors
  • Practical knowledge of viral entry biology
  • Direct experience with lentiviral vectors and transduction workflows