Merck & Co, Inc

Sr. Principal Scientist, Nonclinical Drug Safety

Merck & Co, Inc$190K — $300K *
Pharmaceuticals & Biotech
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • PhD, DVM, or MD with graduate training in Toxicology, Immunology, or related field.
  • Minimum 12 years of experience in toxicology or immunology with pharmaceutical program involvement.
  • Expertise in regulatory processes and ICH guidelines.
  • Strong leadership and collaborative skills in a matrixed environment.
  • Proven track record in nonclinical drug development and scientific oversight.

Responsibilities

  • Lead nonclinical development for Immunology programs, ensuring regulatory compliance.
  • Develop nonclinical strategies and risk assessments for product submissions.
  • Collaborate with cross-functional teams to guide drug candidates through development.
  • Proactively identify and resolve program issues with strategic oversight.
  • Mentor and coach Compound Leaders and Discovery Program Leaders in scientific leadership.
  • Strategically plan and identify resource needs for Immunology programs.
  • Influence nonclinical drug safety considerations and serve as a Compound Leader for specific projects.

Benefits

  • Comprehensive healthcare plans including medical, dental, and vision for employees and families.
  • Retirement benefits including 401(k).
  • Paid holidays and vacation days.
  • Compassionate leave and sick days available.
  • Eligibility for annual bonuses and long-term incentives.
Full Job Description

Job Description

The Nonclinical Drug Safety (NDS) Therapeutic Area Leader (TAL) is a senior scientific leader responsible for advancing the vision and goals of NDS and our company as an industry leader in drug development, product registration, and post-marketing support.

Responsibilities include the following:

  • Serve as the NDS Therapeutic Area Leader for Immunology, overseeing the progression of nonclinical development programs and post-marketing support within the therapeutic area. The role requires strong scientific acumen in immunology, a deep understanding of regulatory expectations for immunology programs, and the ability to rapidly integrate complex scientific concepts into sound development strategies.
  • Deliver high-quality nonclinical strategies, risk assessments, and regulatory submissions that support global clinical development, product registration, and post-marketing commitments, while helping shape the external scientific and regulatory environment through engagement with health authorities, consortia, and scientific organizations.
  • Provide scientific and strategic oversight for Immunology candidates through close collaboration with Program Coordinators, Discovery Preclinical Leaders, Compound Leaders, and scientists across NDS and/or Preclinical Development, while ensuring strong partnership with key Research and Development Division functions, including Discovery, chemistry, regulatory affairs, translational medicine, clinical development, and CMC.
  • Demonstrate situational leadership and innovative problem-solving, with impact beyond Program Development, by proactively identifying potential program issues and guiding Compound Leaders through ambiguity and complexity to achieve timely, risk-balanced resolution.
  • Maintain a strong commitment to the development of Compound Leaders and Discovery Program Leaders through active coaching, mentoring, and scientific leadership.
  • Foster a leadership culture that balances coaching, empowerment, accountability, of thought, and talent development to enable both individual growth and program success.
  • Ensure strategic planning across Immunology programs and proactively identify resource needs, prioritization considerations, and emerging risks within the therapeutic area.
  • Strategically influence nonclinical drug safety considerations for Immunology programs by providing drug development mentorship and partnering with Compound Leaders on time-critical matters, including nonclinical program design and toxicology study design, weight-of-evidence risk assessments, science-based waiver strategies, and integrated safety development plans that support clinical trials, global registration, and timely resolution of nonclinical development issues.
  • Be accountable for high-quality nonclinical risk assessments and regulatory documentation, including clear descriptions of experimental design and results, scientifically robust interpretations, and concise risk assessments for Investigator Brochures, CTAs, INDs, NDAs, BLAs, MAAs, regulatory responses, and other legal or scientific documents supporting global clinical trials, registration, and post-marketing activities.
  • Collaborate closely with Discovery Program Leaders in NDS to provide scientific and strategic input on emerging discovery projects within the Immunology therapeutic area.
  • Contribute to global nonclinical development strategy through scientific publications, external consortia, and cross-industry collaborations, and proactively lead internal cross-departmental initiatives to improve policies, procedures, and strategic direction to maintain our company's leadership in nonclinical drug development.
  • May serve as a Compound Leader for assigned development compounds and may oversee or conduct NDS due diligence reviews for in-licensing opportunities relevant to the Immunology therapeutic area.
  • Be recognized for immunology expertise and contribute to our company's external scientific and regulatory reputation.

Required Education, Experience, and Skills:

  • PhD, DVM, and/or MD degree with graduate and/or post-graduate work and/or residency training in Toxicology, Immunology, Pharmacology, Pathology, or a related field.
  • Minimum of 12 years of experience in toxicology, immunology, pharmacology, pathology, or a related field, with pharmaceutical program team experience and demonstrated expertise in nonclinical drug development and/or relevant regulatory experience with a health authority.
  • Demonstrated experience collaborating with and mentoring program team representatives.
  • Solid experience with regulatory processes, nonclinical risk assessments, ICH guidelines, and Good Laboratory Practice (GLP) requirements.
  • Demonstrated expertise in nonclinical drug development across discovery, early development, and late development, with a strong preference for relevant graduate training in immunology and/or substantial experience providing program team representation or scientific oversight for immunology programs.
  • Strong scientific acumen, intellectual curiosity, persistence, and a demonstrated track record of success across multiple phases of drug development.
  • Strong leadership skills and the ability to build effective partnerships in a matrixed environment; demonstrated ability to collaboratively influence strategic direction and foster a culture of mentorship, empowerment, accountability, talent growth, and program success.
  • Excellent organizational skills and strong verbal and written communication capabilities, with the ability to develop and deliver clear, concise, and scientifically rigorous nonclinical documents and presentations.
  • Experience authoring and critically reviewing nonclinical sections of regulatory documents, including Investigator Brochures, briefing books, INDs, CTAs, NDAs, BLAs, MAAs, regulatory responses, and related scientific or legal documents.

Preferred Experience and Skills:

  • Experience in immunology and/or immuno-oncology drug development.
  • Experience supporting nonclinical development across multiple therapeutic modalities.
  • Demonstrated leadership in an area of scientific expertise, with experience influencing global regulatory strategy through scientific publication, external consortia, or cross-industry collaboration.
  • Previous experience coaching project team representative with varying skill sets and serving on or providing strategic oversight to product development teams. 
  • Supported programs that have advanced to and/or achieved BLA or WMA 

Required Skills:

Cell Line Engineering, Clinical Judgment, Drug Development, Human Health Risk Assessment, Innovative Thinking, Mentorship, Omics Technologies, Pharmacodynamics, Pharmacokinetics, Product Registrations, Project Leadership, Risk Assessments, Strategic Planning, Toxicity Studies, Toxicology

Preferred Skills:

Current Employees apply

Current Contingent Workers apply

US and Puerto Rico Residents Only:

The salary range for this role is

$190,800.00 - $300,300.00

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee’s position within the salary range will be based on several factors including, but not limited to relevant education, qualifications, certifications, experience, skills, geographic location, government requirements, and business or organizational needs.

The successful candidate will be eligible for annual bonus and long-term incentive, if applicable.

We offer a comprehensive package of benefits.  Available benefits include medical, dental, vision healthcare and other insurance benefits (for employee and family), retirement benefits, including 401(k), paid holidays, vacation, and compassionate and sick days. More information about benefits is available at .

You can apply for this role through (or via the Workday Jobs Hub if you are a current employee). The application deadline for this position is stated on this posting.

San Francisco Residents Only: We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance

Los Angeles Residents Only: We will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance

Search Firm Representatives Please Read Carefully 
Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company.  No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails. 

Employee Status:

Regular

Relocation:

Domestic

VISA Sponsorship:

Yes

Travel Requirements:

10%

Flexible Work Arrangements:

Hybrid

Shift:

1st - Day

Valid Driving License:

No

Hazardous Material(s):

N/A

Job Posting End Date:

09/25/2026

*A job posting is effective until 11:59:59PM on the day BEFOREthe listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.

About Merck & Co, Inc

Schering-Plough Corporation is a major U.S.-based manufacturer of pharmaceuticals. It operates in three segments: Prescription Pharmaceuticals, Animal Health, and Consumer Health Care. Schering-Plough develops products targeting on allergy, cancer, hepatitis, cardiovascular, central nervous system, respiratory system, and more.  It was founded in 1851 by Ernst Christian Friedrich Schering as Schering AG in Germany. Schering-Plough manufactured several pharmaceutical drugs, the most well-known of which were the allergy drugs Claritin and Clarinex, an anti-cholesterol drug Vytorin, and a brain tumor drug Temodar. It also developed drugs targeting on central nervous system and the respiratory system. Schering Plough also owned and operated the major foot care brand name Dr. Scholl's and the skin care line Coppertone. These also became a part of the new company. Schering-Plough was a full member of the European Federation of Pharmaceutical Industries and Associations (EFPIA), a membership which is also maintained by the new Merck.

Merck & Co, Inc Careers

Join the visionary team at Merck & Co, Inc, a global leader in healthcare dedicated to advancing the world of medicine. As part of our professional community, you'll find dynamic job opportunities that foster innovation and leadership across various fields. Merck & Co, Inc is not just a company; it's a place where you can make a difference.

Work You’ll Do

At Merck & Co, Inc, we are committed to improving global health through groundbreaking research and innovative healthcare solutions. Our team is at the forefront of developing new therapies and vaccines that significantly impact public health worldwide. By joining us, you will collaborate with some of the brightest minds in the industry, using your skills to contribute to projects that save and improve lives around the globe.

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Whether you're seeking an internship, a graduate opportunity, or a professional position, Merck & Co, Inc offers a range of career paths in environments that promote rapid professional growth and development. Explore job opportunities in research, digital transformation, manufacturing, and more, all while benefiting from a culture that supports diversity and inclusion.

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Merck & Co, Inc is an ideal environment for those who lead with curiosity and the drive to innovate. Our leadership is committed to fostering a culture where inventive thinking and collaboration are encouraged, making it a perfect place for professionals who seek to make an impact through their work.

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With Merck & Co, Inc, you are not just getting a job; you're gaining access to unparalleled career development opportunities. Enhance your skills through diverse training programs, workshops, and continuous learning courses designed to help you grow at every stage of your career.

Benefits and Culture

We understand that our employees are our greatest asset, which is why we offer competitive benefits designed to support the health and well-being of you and your family. From comprehensive health care coverage and retirement plans to flexible working conditions and wellness programs, our benefits package is designed to meet the diverse needs of our team members.

Join Our Team

Ready to advance your career at Merck & Co, Inc? Search open positions that match your skills and interests. We are continuously hiring and looking for passionate, creative, and solution-driven team players. Prepare your resume, sharpen your interview skills, and become part of a company that's dedicated to making a difference.

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Learn more about Merck & Co, Inc
Size
68,000 employees
Market Cap
$282.6 billion
Industry
Net Income
$7 billion
Founded
1668
5 Year Trend
+4.1%
Revenue
$47.9 billion
NASDAQ

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