Principal Scientist, Extractables & Leachables (e&l)

Johnson & Johnson Johnson & Johnson · Pharma · Beerse, Antwerp, Belgium

The Principal Scientist, Extractables & Leachables (E&L) role at Johnson & Johnson focuses on providing technical expertise in E&L studies for closure container systems and drug-device combination products. The role involves designing, executing, and evaluating these studies, interpreting complex analytical data (LC-MS, GC-MS), and ensuring alignment with global regulatory expectations. The scientist will also manage contract laboratories and contribute to regulatory documentation and responses. This is a research-focused role within the healthcare domain, requiring deep scientific judgment and experience with analytical chemistry and regulatory compliance.

What you'd actually do

  1. Proposes scientifically justified solutions to address complex or non-standard issues
  2. Independently designs and critically evaluates complex E&L study strategies (eg. low AET, UF determination, etc), aligning study design with regulatory expectations and program needs
  3. Proactively identifies potential gaps, inconsistencies, and risks in study design and data interpretation
  4. Interprets LC–MS and GC–MS data and support the preparation of high-quality technical reports and regulatory documentation
  5. Supports regulatory activities by contributing to scientific justifications and responses

Skills

Required

  • Analytical Reasoning
  • Chemistry
  • Scientific Research
  • Critical Thinking
  • Process Improvements

Nice to have

  • Biochemistry
  • Biotechnology
  • Manufacturing, and Control (CMC)
  • Clinical Research and Regulations
  • Clinical Trial Designs
  • Coaching
  • Drug Discovery Development
  • Emerging Technologies
  • Molecular Diagnostics
  • Organizing
  • Pharmacovigilance
  • Presentation Design
  • Productivity Planning

What the JD emphasized

  • Ph.D. in Chemistry (Analytical preferred) with 4+ years relevant experience OR Master’s with 6+ years OR Bachelor’s with 8+ years
  • Demonstrated experience designing and critically evaluating E&L studies for container closure systems and/or drug–device combination products and/or medical devices
  • Strong expertise in interpretation of complex LC-MS and GC-MS datasets
  • Proven ability to apply scientific judgement to assess study adequacy, identify gaps, and resolve complex technical challenges
  • Solid understanding of global E&L regulatory expectations and guidance (e.g. USP <1663>/<1664>, ISO 10993, PQRI, FDA, etc)