Senior Scientist I

About the role

As a Senior Scientist I, you will serve as a scientific leader supporting critical drug development programs through the design, execution, and interpretation of regulated bioanalytical and drug-drug interaction (DDI) studies. You will collaborate directly with sponsors, influence study strategy, solve complex scientific challenges, and help bring innovative therapies closer to patients.

Location: Exton, PA (On-site)

Responsibilities

• Design and lead regulated DMPK and DDI bioanalytical studies that support client drug development programs.
• Develop, optimize, validate, and execute LC-MS/MS and HPLC analytical methods.
• Serve as Study Director (SD) and Principal Investigator (PI) for assigned studies.
• Interpret complex bioanalytical data and provide scientific recommendations to internal and external stakeholders.
• Author and review protocols, study reports, technical summaries, and regulatory documentation.
• Troubleshoot analytical challenges and drive scientifically sound solutions.
• Collaborate with cross-functional teams including Scientists, Operations, Quality Assurance, Business Development, and clients.
• Mentor junior scientists and contribute to the growth of laboratory capabilities and scientific excellence.
• Serve as a scientific partner to sponsors by providing study updates, discussing results, and helping design solutions that meet program objectives.

Requirements

• Bachelor's degree in Pharmaceutical Sciences, Life Sciences, Chemistry, Biochemistry, or a related discipline.
• 5+ years of GLP and/or bioanalytical laboratory experience.
• 3+ years of hands-on LC-MS/MS experience utilizing Sciex, Waters, or similar platforms.
• Experience supporting DMPK and Drug-Drug Interaction (DDI) studies.
• Experience authoring protocols, reports, and technical documentation.
• Strong data interpretation, problem-solving, and troubleshooting abilities.

Benefits

• Comprehensive Medical, Dental & Vision Insurance with significant employer contributions
• 401(k) Retirement Plan with generous employer matching
• Generous Paid Time Off (PTO), Paid Sick Leave & Company Holidays to support work-life balance
• Employer-funded Health Savings Account (HSA) contributions (for eligible plans), plus Healthcare & Dependent Care Flexible Spending Accounts
• 100% Employer-paid Employee Life Insurance, AD&D, Short- and Long-Term Disability Insurance
• Employee Assistance Program (EAP), mental health resources, and wellness programs
• Family-friendly benefits, including fertility support and maternity resources
• Professional development and career growth opportunities within a leading global CRO/CDMO

Pay

Hourly Range: $85,000 - $95,000