Principal Scientist, Translational Clinical Biomarkers

Merck & Co.; Upper Gwynedd Township (Montgomery County); Hybrid; USD 191,000 - 300,000; Full time

Benefits offered by this job

Annual bonus

Long-term incentive

Job summary

Merck & Co. is seeking a Principal Scientist to provide strategic biomarker leadership across CVM and ID/Vaccines programs, guiding translational and clinical biomarker strategies from early to late development.

The role emphasizes decision-centric biomarker plans that integrate mechanism of action, biology, pharmacodynamics, patient heterogeneity, and precision medicine to inform go/no-go decisions and program direction. Hybrid work and cross-functional collaboration are offered.

Qualifications

• Extensive experience in translational or clinical biomarker strategies.
• Expertise in CVM, ID/Vaccines, immunology, or related fields.
• Ability to translate hypotheses into biomarker strategies informing clinical decisions.
• Strong communication and cross-functional leadership skills.

Responsibilities

• Develop and lead integrated biomarker strategies across programs.
• Translate disease biology into translational hypotheses.
• Define biomarker-informed development questions and go/no-go decisions.
• Ensure scalable biomarker strategies with clear linkage to actions.
• Serve as biomarker representative on cross-functional teams.
• Partner with Discovery, Clinical Development, Regulatory, Data Science, and more.
• Lead interpretation of biomarker data and translate into recommendations.
• Identify disease heterogeneity and drivers of clinical outcomes.
• For infectious diseases and vaccines, address host/pathogen biology and pharmacodynamics.
• For CV/metabolic programs, address target engagement and pathway modulation.

Skills

Biomarker leadership

Translational biomarker strategy

Cross-functional leadership

Biostatistics

Bioinformatics

Pharmacodynamics

Drug development

Clinical development

Data interpretation

Education

Ph.D., M.D., or equivalent advanced scientific degree

Job description

Job Description

We are seeking an accomplished and highly motivated Principal Scientist to provide strategic and scientific biomarker leadership across programs within the Cardiovascular & Metabolic and Infectious Diseases/Vaccines portfolios.

This role will lead the design, execution, analysis, and communication of translational and clinical biomarker strategies across programs spanning early through late clinical development.

The successful candidate will develop decision-centric biomarker strategies that integrate therapeutic mechanism, disease biology, pharmacodynamics, patient heterogeneity, dose and regimen selection, clinical endpoints, and opportunities for precision medicine. Biomarker plans should focus on generating high-value, interpretable evidence that informs program decisions rather than data generation alone.

Key Responsibilities

• Develop and lead integrated biomarker strategies across CVM and ID/Vaccines programs, in partnership with cross-functional development teams.
• Translate disease biology and therapeutic mechanism into clear translational hypotheses and fit-for-purpose biomarker approaches.
• Define how biomarkers can inform key development questions including proof of biology, target engagement, dose and regimen selection, patient stratification, response assessment, and go/no-go decisions.
• Ensure biomarker strategies are focused and scalable, with clear linkage between the development question, proposed measurement, expected result, and potential action.
• Serve as the biomarker representative on cross-functional program teams and provide strategic biomarker input to program-level decision making.
• Partner closely with Discovery, Clinical Development, Quantitative Sciences, Regulatory, Data Science, Clinical Operations, and other functions to develop integrated translational strategies.
• Lead the interpretation of biomarker and clinical datasets and translate complex findings into clear, actionable recommendations.
• Identify opportunities to understand disease heterogeneity, therapeutic response, resistance or non-response, and biological drivers of clinical outcomes.
• For infectious diseases and vaccines, develop biomarker strategies addressing areas such as host and pathogen biology, immune response, correlates of protection, pharmacodynamic response, and patient or population stratification, as appropriate.
• For cardiovascular and metabolic programs, develop biomarker strategies addressing areas such as target engagement, pathway modulation, disease biology, pharmacodynamic response, patient heterogeneity, and relationships between biological effects and clinical outcomes.
• Evaluate emerging biomarker technologies and analytical approaches based on their ability to address meaningful development questions.
• Communicate biomarker strategies, results, risks, and recommendations clearly to cross-functional teams and key stakeholders.
• Provide scientific guidance and mentorship to biomarker scientists and contribute to a collaborative, strategically focused biomarker organization.
• Support publications, scientific presentations, external collaborations, and interactions with key external experts as appropriate.

Qualifications

Education

Ph.D., M.D., or equivalent advanced scientific degree with relevant experience in translational medicine, biomarker science, drug development, or a related discipline.

Required Experience and Skills

• Significant experience developing and executing translational or clinical biomarker strategies in drug or vaccine development.
• Scientific expertise relevant to one or more areas within cardiovascular disease, metabolic disease, infectious diseases, vaccines, immunology, or related disciplines.
• Demonstrated ability to translate scientific hypotheses into biomarker strategies that inform clinical development decisions.
• Strong understanding of the relationship between mechanism of action, disease biology, pharmacology, biomarkers, clinical endpoints, and development strategy.
• Ability to lead cross-functional scientific work in a matrixed environment and influence without direct authority.
• Strong analytical and problem-solving skills, including the ability to synthesize complex datasets into clear, decision-oriented conclusions.
• Ability to prioritize high-value, decision-enabling biomarker work and distinguish it from lower-priority exploratory activities.
• Excellent written and verbal communication skills and the ability to communicate scientific strategy to stakeholders.
• Working knowledge of biostatistics, bioinformatics, quantitative sciences, and multidimensional biomarker data analysis.
• Strategic mindset with a focus on scientific rigor, prioritization, scalability, and generation of actionable evidence.

Preferred Experience and Skills

• Experience supporting programs across multiple stages of clinical development.
• Experience with pharmacodynamic, predictive, prognostic, patient-stratification, or precision-medicine biomarker strategies.
• Experience in cardiovascular/metabolic drug development and/or infectious disease and vaccine development.
• Experience working across multiple programs or therapeutic areas.
• Experience mentoring or providing scientific direction to other scientists.

Required Skills:

Biomarkers, Cardiovascular Diseases, Clinical Development, Clinical Research, Clinical Study Design, Data Translation, Ethical Compliance, Ethical Standards, Immuno-Oncology, Mechanism of Action, Patient Care, Personalized Medicine, Pharmacodynamics, Scientific Presentations, Scientific Writing, Strategic Thinking, Translational Medicine

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

Employee Status:

Regular

Relocation:

Domestic

VISA Sponsorship:

No

Travel Requirements:

10%

Flexible Work Arrangements:

Hybrid

Shift:

1st - Day

Valid Driving License:

No

Hazardous Material(s):

N/A

Job Posting End Date:

10/9/2026

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

Requisition ID:

R417642

Salary Range:

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.

Benefits:

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 https://jobs.merck.com/us/en/compensation-and-benefits .

EEO Statement:

As an Equal Employment Opportunity Employer, we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or other applicable legally protected characteristics.--As a federal contractor, we comply with all affirmative action requirements for protected veterans and individuals with disabilities.- For more information about personal rights under the U.S. Equal Opportunity Employment laws, visit:

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We are proud to be a company that embraces the value of bringing together, talented, and committed people with diverse experiences, perspectives, skills and backgrounds. The fastest way to breakthrough innovation is when people with diverse ideas, broad experiences, backgrounds, and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one another's thinking and approach problems collectively.