Merck Posted August 16, 2026

Principal Scientist/Engineer, Drug/Device Combination Products - Device Characterization

Rahway, New Jersey, United States of America FULL_TIME
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About this opportunity

Job Description

The company Device Product and Process Development (DPPD) Team is seeking a hands-on device characterization and design focused technical leader. This position will be responsible for technical interrogation of the various drug delivery device technology platforms supporting our company's pipeline to identify risks (i.e. when/how will the device fail?) and opportunities for improvement. In this role, the successful candidate will utilize a wide variety of cutting-edge analytical instruments and methods, including in silico modeling, to build fundamental understanding of the devices’ material and functional properties and attributes. This understanding, combined with extensive data analysis/interpretation, will allow the role to design and develop functional improvements for these platforms and, as the opportunities arise, develop new and novel delivery technologies. These drug delivery device technology platforms can be but not limited to, pre-filled syringes, auto injectors, onbody injectors and inhalers.  The successful candidate must have effective cross functional collaboration skills, demonstrated excellent scientific leadership, and superior written and oral communications abilities.

Our company is a global health care leader with a 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.

Our company is on a quest for cures and is committed to being the world’s premier, most research-intensive biopharmaceutical company. Today, we’re doubling down on this goal. Our company's Research Laboratories is a true scientific research facility of tomorrow and will take our company's leading discovery capabilities and world-class small molecule and biologics R&D expertise to create breakthrough science that radically changes the way we approach serious diseases.

Join us and experience our culture first-hand, one of strong ethics & integrity, experiences, exceptional science, and a resounding passion for improving human health. As part of our global team, you’ll have the opportunity to collaborate with talented and dedicated colleagues while developing and expanding your career.

Education Requirement (minimum):

Ph.D. with 8+ years of industry experience in Mechanical Engineering, Biomedical Engineering, or an equivalent field is required.

Required Experience and Skills:

Proven record of scientific accomplishments in combination product development with a strong scientific publication and presentation track record.

Fluency in structural finite element analysis (FEA).

Solid testing and troubleshooting skills able to work independently in a laboratory setting

Expertise with mechanical testing, imaging, and measurement equipment and techniques. Including, but not limited to, mechanical testing, surface characterization, x-ray computed tomography, rheometry, and microscopy.

Experience in 3D CAD (e.g. Solidworks), geometric tolerancing and stack-up analysis.

Fluency in Design Failure Modes and Effect Analysis (FMEA, DFMEA).

Cross-functional communication – communicating complex engineering information in layman’s terms to facilitate CMC cross-functional understanding and to support project timelines.

Development experience in risk-oriented, regulated environments

Development project leadership with a proven track record collaborating with and managing external vendors/research partners.

Preferred Experience and Skills:

Experience with medical device development with understanding of Design Controls (21 CFR 820.30)

Familiarity with the following standards: Quality Management – ISO 13485, Risk Management – ISO 14971, EU MDR, ISO 11608 Needle-based injection system for medical use.

Familiarity with Design Verification (DV) strategies and mechanical tests with validations, including engineering studies, design verification protocols, stability studies and validation protocols, ensuring appropriate selection of acceptance criteria and sampling plans. Ensures measurement systems analysis (MSA’s) for all finished product performance test methods as needed in tech transfer or lifecycle.

Additional familiarity/experience with the following knowledge is a plus:

21 CFR Part 4

21 CFR 211

FDA Guidance for Industry, Container Closure Systems for Packaging Human Drugs & Biologics

ISO 13485

ISO 14971

ISO 11040

ISO 10993

Required Skills:

Animal Vaccination, Biomedical Engineering, Biopharmaceutical Industry, Combination Products, Design Controls, Finite Element Analysis (FEA), Global Health, Human Factor Engineering, Mechanical Testing, Medical Device Quality Systems, Microscopies, Process Development Engineering, Project Leadership, Quality Management, Quality Standards, Risk Management, Vendor Relationship Management

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 primary location for this posting is:

USA - New Jersey - Rahway

Where required by law, the compensation range for this role is provided below.

The salary range for the primary location of this role is:

$156,900.00 - $247,000.00

This range reflects the Company's reasonable expectation of the base salary applicable to this role at the time of 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 .

Additional location(s): Please note the salary range above applies to the Primary Location of the position. Where a role has other listed locations, different compensation guidelines may apply. You may find the salary ranges for additional locations below. If the salary range is not listed for the location you are applying to, our Talent Acquisition team will provide further information to you relevant to your location.

Additional location(s) Compensation Information:

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:

VISA Sponsorship:

Travel Requirements:

Flexible Work Arrangements:

Not Applicable

Shift:

Valid Driving License:

Hazardous Material(s):

Job Posting End Date:

10/31/2026 *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:R410078

Job details

Seniority
Principal
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Rahway, New Jersey, United States of America
Employment type
FULL_TIME

How this role compares

Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.

We currently track 680 comparable Principal Manufacturing & CMC roles across 90 biopharma companies.

680Comparable roles tracked
618Currently active
90Companies hiring similar roles
35Countries represented

Salary context

263 of 680 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 Not listed on this posting
Lowest disclosed · Senior Technician Calibration - Maintenance · Mylan Technologies, Inc. $37,000/yr – $80,000/yr
Peer group range $58,500 – $288,000 (median $155,000)

Where these roles are based

Top locations among the 680 comparable roles

United States447
India38
Ireland33
Netherlands23
Germany15
United Kingdom13

+ 29 more countries

Seniority mix

680 of 680 peers have a known seniority level

Senior429
Principal133
Director118

Therapeutic area mix

9 of 680 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease4
Oncology3
Respiratory1
Dermatology & Aesthetics1

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Notify me about similar jobs

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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.