Senior Biotherapeutics R&D Scientist – Bioassay & QC

Johnson & Johnson Co.; Malvern (Chester County); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Johnson & Johnson Innovative Medicine R&D in Malvern, PA, seeks an Experienced Scientist in Bioassay Methods Development. This hybrid role focuses on developing cell-based bioassays and binding assays to support potency testing, structure-function studies, and regulatory submissions.

You will design, qualify, validate and transfer analytical methods, write protocols and reports, and collaborate across GMP, QA, Regulatory, and Process Development to advance products from lab to life.

Qualifications

• Minimum of a bachelor's degree in biology, pharmacology, immunology, biochemistry, or related field with 4+ years in industry or a master's with 2+ years.
• Experience in bioassay, binding assays, or immunochemical techniques.
• Cell culture and aseptic technique experience.
• Strong written and verbal communication skills.
• Ability to work effectively in a dynamic team and influence others.

Responsibilities

• Author protocols and reports; coordinate testing for analytical development and manufacturing processes.
• Record data accurately with traceable GMP-compliant documentation.
• Design, troubleshoot, and execute experiments; analyze data and report results.
• Collaborate with partners to troubleshoot assay problems; stay current with literature.
• Support regulatory submissions (INDs/BLAs) with analytical input.

Skills

Bioassay development

Cell culture

Technical writing

Verbal communication

Interpersonal skills

Data analysis

Education

Bachelor's degree in Biology/Pharmacology/Immunology/Biochemistry

Master's degree (preferred)

Tools

GMP experience

Flow cytometry

Laboratory automation

Design of experiments (DoE)

Assay validation parameters

Job description

Johnson & Johnson Innovative Medicine R&D in Malvern, PA, seeks an Experienced Scientist in Bioassay Methods Development. This hybrid role focuses on developing cell-based bioassays and binding assays to support potency testing, structure-function studies, and regulatory submissions.

You will design, qualify, validate and transfer analytical methods, write protocols and reports, and collaborate across GMP, QA, Regulatory, and Process Development to advance products from lab to life.