Pfizer Posted October 9, 2026

Principal Scientist - Materials Science

Groton, United States Full time
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About this opportunity

Why Patients Need You

Pfizer’s purpose is to deliver breakthroughs that change patients’ lives. Research and Development is at the heart of fulfilling Pfizer’s purpose as we work to translate advanced science and technologies into the therapies and vaccines that matter most. Whether you are in the discovery sciences, ensuring drug safety and efficacy or supporting clinical trials, you will apply cutting edge design and process development capabilities to accelerate and bring the best-in-class medicines to patients around the world.

What You Will Achieve

In this laboratory-based position, you will investigate and understand the solid form and particle properties of Pfizer’s drug molecules that will range from small molecules to “Beyond Rule of 5” candidates to peptides.  Your responsibilities include generating solid-state chemistry and particle characterization data using state-of-the-art instrumentation and computer models and interpreting the data to allow new medicines to be brought to the market.  You will serve on multidisciplinary project teams and will be responsible for defining the final drug substance form (salt/polymorph/hydrate) of active pharmaceutical ingredients (API) and the preferred physical attributes (particle shape/particle size/surface energy) needed for optimum API, drug product intermediate (DPI) and drug product performance.

How You Will Achieve It

Participate on multidisciplinary project teams as the Materials Science Lead to advance molecules from Discovery to drug product launch by leading a matrix team of MatSci colleagues to define and implement solid form/particle design and characterization strategies according to project timelines.

Influence formulation design and drug product process development through integration of physical and surface characterization data for API and DPI powders of pharmaceutical relevance.

Crystallizing and screening neutral molecules, salt, and co-crystal forms of drug candidates (including hydrates, solvates and polymorphs) and evaluate these forms for acceptability as drug substances as it relates to chemical manufacturing and formulation into pharmaceutical products.

Conduct solid-state physical and chemical characterization of small molecules of pharmaceutical relevance.  This includes particle characterization (e.g., particle size, shape) and solid-state characterization (e.g., spectroscopy, single crystal X-ray diffraction, electron diffraction,  X-ray powder diffraction, thermal analysis).

Apply state-of-the-art computational approaches to aide in designing experiments as well as predict both the solid form and particle crystalline properties and performance of drug substance and drug product intermediate samples.

Oversee the work of external partners conducting laboratory studies and provide tactical guidance and critical analysis of raw data.

Coach and mentor laboratory scientists in the design, execution, and analysis of materials science data.

Solve scientific problems using contemporary materials science experimental and computational techniques.

Draft and review sections of regulatory submissions and query responses as well as deliver reports to support patenting Pfizer’s intellectual property.

Provide materials science support for colleagues in other departments as well as collaborate with project teams in defining the drug development strategy.

Lead the development of new scientific approaches and knowledge within the global Materials Science organization as well as with key academic collaborators.

Qualifications

Must-Have

Ph.D. in Chemistry, Engineering, Materials Science, Pharmaceutics or related field and a minimum of 5 years of relevant materials science experience in industry OR relevant master’s degree with minimum of 10 years of relevant materials science experience.

Experience in small molecule crystallization and solid-state characterization (e.g., x-ray powder diffraction, polarized light microscopy, IR/Raman spectroscopy, laser diffraction techniques, differential scanning calorimetry, thermogravimetric analysis, NMR).

Experience with regulatory submissions and query responses related to solid form and particle characterization.

Strong data analysis skills and knowledge of statistical concepts.

A strong interest and motivation to learn new technologies and concepts.

Strong oral and written communication skills.

Nice-to-Have

Experience with using contemporary computational approaches to predict the properties and performance of pharmaceutical materials. Specifically, applying state-of-the-art computational approaches (e.g., HABIT, Materials Studio, Mercury, CosmoTherm, SimCU) to predict the properties and performance of powder samples

Experience curating data to support developing predictive tools.

Experience in powder characterization (such as polarized light microscopy, electron microscopy, image analysis, laser diffraction methods, etc) and surface property testing (e.g., inverse gas chromatography, EDX, atomic force microscopy, etc) for fine powders.

Experience with using contemporary computational approaches to predict the properties and performance of pharmaceutical materials.

Understanding of the physical and chemical properties needed for drug substance and drug product intermediate manufacture as well as impact to successful formulation into drug product.

Candidate demonstrates a breadth of diverse leadership experiences and capabilities including: the ability to influence and collaborate with peers, develop and coach others, oversee and guide the work of other colleagues to achieve meaningful outcomes and create business impact.

PHYSICAL/MENTAL REQUIREMENTS

None

NON-STANDARD WORK SCHEDULE, TRAVEL OR ENVIRONMENT REQUIREMENTS

None

Relocation support available

Work Location Assignment: On Premise

The annual base salary for this position ranges from $106,000.00 to $176,600.00. In addition, this position is eligible for participation in Pfizer’s Global Performance Plan with a bonus target of 15.0% of the base salary and eligibility to participate in our share based long term incentive program. We offer comprehensive and generous benefits and programs to help our colleagues lead healthy lives and to support each of life’s moments. Benefits offered include a 401(k) plan with Pfizer Matching Contributions and an additional Pfizer Retirement Savings Contribution, paid vacation, holiday and personal days, paid caregiver/parental and medical leave, and health benefits to include medical, prescription drug, dental and vision coverage. Learn more at Pfizer Candidate Site – U.S. Benefits | (uscandidates.mypfizerbenefits.com). Pfizer compensation structures and benefit packages are aligned based on the location of hire. The United States salary range provided does not apply to Tampa, FL or any location outside of the United States.

Relocation assistance may be available based on business needs and/or eligibility.

Candidates must be authorized to be employed in the U.S. by any employer.

U.S. work visa sponsorship (such as TN, O-1, H-1B, etc.) is not available for this role now or in the future.

Sunshine Act

Pfizer reports payments and other transfers of value to health care providers as required by federal and state transparency laws and implementing regulations.  These laws and regulations require Pfizer to provide government agencies with information such as a health care provider’s name, address and the type of payments or other value received, generally for public disclosure.  Subject to further legal review and statutory or regulatory clarification, which Pfizer intends to pursue, reimbursement of recruiting expenses for licensed physicians may constitute a reportable transfer of value under the federal transparency law commonly known as the Sunshine Act.  Therefore, if you are a licensed physician who incurs recruiting expenses as a result of interviewing with Pfizer that we pay or reimburse, your name, address and the amount of payments made currently will be reported to the government.  If you have questions regarding this matter, please do not hesitate to contact your Talent Acquisition representative.

EEO & Employment Eligibility

Pfizer is committed to equal opportunity in the terms and conditions of employment for all employees and job applicants without regard to race, color, religion, sex, sexual orientation, age, gender identity or gender expression, national origin, disability or veteran status.  Pfizer also complies with all applicable national, state and local laws governing nondiscrimination in employment as well as work authorization and employment eligibility verification requirements of the Immigration and Nationality Act and IRCA.  Pfizer is an E-Verify employer.  This position requires permanent work authorization in the United States.

Pfizer endeavors to make   www.pfizer.com/careers   accessible to all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process and/or interviewing, please email   disabilityrecruitment@pfizer.com . This is to be used solely for accommodation requests with respect to the accessibility of our website, online application process and/or interviewing. Requests for any other reason will not be returned.

To learn more about acceptable and prohibited uses of AI during the recruitment process, please review our candidate AI-use guidelines available on  Pfizer Careers .

Research and Development

Job details

Seniority
Principal
Function
Drug Discovery & Preclinical Research
Therapeutic area
Not listed
Location
Groton, United States
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 458 comparable Principal Drug Discovery & Preclinical Research roles across 54 biopharma companies.

458Comparable roles tracked
425Currently active
54Companies hiring similar roles
21Countries represented

Salary context

226 of 458 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 $106,000/yr – $176,600/yr
Lowest disclosed · Senior Animal Behaviorist - Primate · Labcorp $70,000/yr – $80,000/yr
Peer group range $75,000 – $322,000 (median $169,300)

Where these roles are based

Top locations among the 458 comparable roles

United States339
China22
India16
United Kingdom11
Switzerland10
Germany9

+ 15 more countries

Seniority mix

458 of 458 peers have a known seniority level

Senior227
Principal170
Director61

Therapeutic area mix

59 of 458 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Immunology19
Oncology18
Neuroscience15
Cardiovascular / CVRM3
Vaccines & Infectious Disease1
Respiratory1
Gastroenterology1
Dermatology & Aesthetics1

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How we calculate "similar"

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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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