Merck Posted September 23, 2026

Principal Scientist, Pharmacokinetics, Biologics

Boston, Massachusetts, United States of America FULL_TIME
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About this opportunity

Job Description

Boston Pharmacokinetics, Dynamics, Metabolism and Bioanalytics – Principal Scientist

Our company is a global health care leader with a diversified portfolio of prescription medicines, vaccines and animal health products. The difference between potential and achievement lies in the spark that fuels innovation and inventiveness; this is the space where our company has codified its legacy for over a century. Our company’s success is backed by ethical integrity, forward momentum, and an inspiring mission to achieve new milestones in global healthcare.

At our company, we are inspired by the belief that a research-driven enterprise dedicated to scientific excellence can create medicines that save and improve lives. Every employee is building on our proud legacy of scientific breakthrough. Our ability to impact the lives of patients worldwide depends on the integrity, creativity, humility and scientific acumen of our team. We are creating an organization that is inspired by invention and founded on a culture of respect and collaboration. At our Research & Development Division Boston, you’ll have the opportunity to expand your knowledge and skills through collaboration with talented and dedicated colleagues while advancing your career.

The Pharmacokinetics, Dynamics, Metabolism and Bioanalytics (PDMB) group is seeking a dynamic, strategic thinking and collaborative Principal Scientist (director-level equivalent) to contribute to our company’s bioanalytical efforts for biologics in our drug discovery portfolio.  This position will be based at our research labs in Boston, MA. The ideal candidate will lead a group focused on bioanalytical efforts (ligand binding assays and mass spectrometry) for biologics and other modalities while also serving as a project-team representative, regularly interacting with multi-disciplinary discovery teams and partners from other functions within our Research & Development Division. Therapeutic area support with focus on our immunology and oncology portfolios, with the potential to contribute to cardiovascular/metabolic, neuroscience and infectious disease efforts as well. The successful candidate will be expected to represent PDMB on cross-functional teams through strategic design and evaluation of bioanalytical approaches and results, interpretation of PK and PK/PD data sets and through effective communication at both internal meetings and external conferences.

In this exciting position, your primary roles will include:

Lead bioanalytical strategies for a portfolio of drug discovery programs with a primary focus on biologics (monoclonal antibodies, bispecifics, and engineered proteins), providing high quality and timely data to project teams across our Research & Development Division’s drug discovery portfolio

Manage a team of lab-based PDMB scientists responsible for developing and executing ligand binding assays and mass spectrometry-based bioanalytical strategies

Project-team representative and subject matter expert on multiple modality DMPK activities within the oncology and immunology therapeutic areas

Contribute to global DMPK strategy through close collaboration with Discovery and Early Development project teams in Boston (MA), South San Francisco (CA) and West Point (PA) focusing on building highly efficient strategies to identify and optimize drug candidates

Education Minimum Requirement

 

Ph.D (with 6+ years relevant experience) or Master’s (minimum of 10 years relevant experience) degree in biochemistry, chemistry, pharmacology, pharmaceutical sciences, biomedical engineering or related field

Relevant experience to include a record of increasing responsibility and independence in a similar industrial/academic setting

 

Required Experience and Skills 

Demonstrated experience leading bioanalytical strategies for biologics (ligand binding assays and mass spectrometry), including method development, data generation, interpretation and report writing

Technical ability to analyze, interpret and provide context around data describing the pharmacokinetic, pharmacodynamic, biomarker or immunogenicity properties of biologics, drug conjugates and peptides

Experience contributing to development and execution of translational pharmacokinetic/pharmacodynamic/efficacy relationships and other useful quantitative pharmacology applications in a discovery setting

Proven management experience, including mentorship and talent development of multiple direct reports

Strong leadership, interpersonal, communication, problem solving and collaborative qualities to deliver high-quality results in a fast-paced environment

Preferred Experience and Skills

Hands-on experience performing translational pharmacokinetic/pharmacodynamic/ efficacy and physiologically-based pharmacokinetic (PBPK) software modeling (e.g., Phoenix WinNonlin, Berkeley Madonna, MATLAB).

Proven track record supporting immunology or oncology-based programs with experience spanning from early discovery through IND-enabling efforts

Familiarity with engineering strategies to improve pharmacokinetic and pharmacodynamic properties of protein therapeutics

Experience working within a research-driven pharmaceutical company

#EligibleforERP

Required Skills:

ADME, Bioanalysis, Bioanalytical Method Development, Biologics, Cross-Functional Teamwork, Drug Development, Drug Discovery Research, Drug Metabolism, Ligand Binding, Pharmaceutical Sciences, Pharmaceutics, Pharmacodynamics, Pharmacokinetics, Pharmacology, PKPD Modeling, Therapeutic Proteins

Preferred Skills:

Current Employees apply HERE

Current Contingent Workers apply HERE

US and Puerto Rico Residents Only:

Our company is committed to inclusion, ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here if you need an accommodation during the application or hiring process.

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:

EEOC Know Your Rights

EEOC GINA Supplement​

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.

Learn more about your rights, including under California, Colorado and other US State Acts

The salary range for this role is

$176,200.00 - $277,300.00

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

You can apply for this role through https://jobs.merck.com/us/en (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:

Not Applicable

Shift:

Not Indicated

Valid Driving License:

No

Hazardous Material(s):

n/a

Job Posting End Date:

10/16/2026 *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:R418497

Job details

Seniority
Principal
Function
Drug Discovery & Preclinical Research
Therapeutic area
Not listed
Location
Boston, Massachusetts, United States of America
Employment type
FULL_TIME

How this role compares

Computed from every other active Drug Discovery & Preclinical Research role in our database, not just this employer's listings.

We currently track 222 comparable Principal Drug Discovery & Preclinical Research roles across 42 biopharma companies.

222Comparable roles tracked
213Currently active
42Companies hiring similar roles
13Countries represented

Salary context

91 of 222 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject $176,200/yr – $277,300/yr
Peer group range $91,450 – $322,000 (median $186,375)

Where these roles are based

Top locations among the 222 comparable roles

United States175
India11
China5
United Kingdom5
Spain4
China's Mainland4

+ 7 more countries

Seniority mix

222 of 222 peers have a known seniority level

Senior104
Principal79
Director39

Therapeutic area mix

25 of 222 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology8
Immunology4
Cardiovascular / CVRM4
Respiratory3
Neuroscience3
Vaccines & Infectious Disease2
Gastroenterology1

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How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

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Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.