Merck Posted August 12, 2026

Associate Principal Scientist Engineer, Drug and Device Combination Products (Onsite)

Rahway, New Jersey, United States of America FULL_TIME
Manufacturing & CMC Principal

Merck is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

Job Description

The Associate Principal Scientist / Engineer of Method Development, Testing & Transfer will be responsible for helping to lead the Center of Excellence (CoE) focused on developing and validating platform and innovative device/CP functional test methods with high technical rigor in support of development activities, IND-enabling stability, commercial stability, and Design Verification. This role involves leading the method development technical strategy across multiple products and programs, and defining the transfer strategy and execution to internal and external GMP testing nodes in support of clinical and PPQ supplies. Additionally, the Associate Principal Scientist / Engineer will be responsible for the management and technical development of a small team (4-5 scientist / engineers) responsible for providing routine functional testing support for Device Characterization (DC) and Design Verification (DV) deliverables across development to commercialization for our Company's rapidly expanding medical device and combination product (MDCP) portfolio.

Key Responsibilities:

Technical (co)leadership of a Center of Excellence (CoE) focused on developing and validating platform and innovative device/CP functional test methods with high technical rigor to support development, IND-enabling stability, commercial stability (PSS), and Design Verification (DV).

Lead method tech transfer strategy and execution to internal and external GMP testing nodes in support of clinical and PPQ supplies.

Lead, manage, and develop a team responsible for providing routine functional testing support for Device Characterization (DC) and Design Verification (DV) deliverables across development to commercialization.

Collaborate with Analytical Research & Development (AR&D), Design Controls & Risk Management (DCRM), Quality, Regulatory, and Quality Control (QC) facilities to ensure that functional testing methods meet regulatory requirements, industry standards, and internal Quality Management System (QMS) compliance.

Talent retention, training/upskilling, and recruiting of top talent as needed to deliver on pipeline and innovation projects.

Ensure training, safety, and compliance requirements are met and roles and responsibilities are clearly understood and followed.

Employee development and growth opportunities.

Qualifications:

Advanced degree (PhD) preferred

Demonstrated leadership experience in leading and managing teams, preferably in a regulated industry.

Extensive knowledge of method development, validation, and transfer, with an understanding of regulatory requirements and industry best practices.

Experience in collaborating with cross-functional teams including Quality, Regulatory, and QC facilities.

Strong project management skills and the ability to prioritize and manage multiple projects effectively.

Excellent communication and interpersonal skills, with the ability to collaborate effectively with internal and external stakeholders.

Required Education, Experience & Skills

Bachelor's or Master's degree in Mechanical Engineering, Chemical Engineering, Chemistry, Analytical Chemistry, Pharmaceutical Sciences, or equivalent field.

7+ years of experience in method development, validation, and testing within the pharmaceutical, medical device, or combination product industry.

#eligibleforERP

#PRD

Required Skills:

Analytical Chemistry, Chemical Biology, Collaborative Development, Combination Products, Design Failure Mode and Effect Analysis (DFMEA), GMP Compliance, Mechanical Engineering, Mechanical Testing, Medical Device Quality Systems, Medicinal Chemistry, Project Management, Project Management Support, Quality Control Management, Quality Management Systems (QMS), Test Method Validation

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

$142,400.00 - $224,100.00

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:

No

Travel Requirements:

25%

Flexible Work Arrangements:

Not Applicable

Shift:

1st - Day

Valid Driving License:

No

Hazardous Material(s):

n/a

Job Posting End Date:

08/19/2026 *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:R408328

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 393 comparable Principal Manufacturing & CMC roles across 56 biopharma companies.

393Comparable roles tracked
368Currently active
56Companies hiring similar roles
19Countries represented

Salary context

188 of 393 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 $142,400/yr – $224,100/yr
Lowest disclosed · Senior Scientist II – CMC Developmental Sciences · AbbVie $0/hr – $0/hr (≈ $0–$0/yr)
Highest disclosed · Director, Global Automation Engineering · AbbVie $182,000/yr – $346,000/yr
Peer group range $0 – $264,000 (median $150,600)

Where these roles are based

Top locations among the 393 comparable roles

United States282
India42
Singapore10
Ireland9
Netherlands7
Switzerland6

+ 13 more countries

Seniority mix

393 of 393 peers have a known seniority level

Senior251
Principal78
Director64

Therapeutic area mix

2 of 393 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology1
Vaccines & Infectious Disease1

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

60%similar
Lilly Indianapolis, Indiana, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Louisville, Colorado, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Indianapolis, Indiana, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Watertown, Massachusetts, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Indianapolis, Indiana, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Indianapolis, Indiana, United States of America Principal
Same function Same seniority Same country

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.

60%
Senior/Principal Scientist, Bioprocess Purification Development
Lilly · Indianapolis, Indiana, United States of America · Principal
Function Therapeutic area Seniority Country
60%
Senior Principal Scientist, Analytical Sciences
Lilly · Watertown, Massachusetts, United States of America · Principal
Function Therapeutic area Seniority Country
60%
Sr. Principal or Engineering Advisor - Agentic Lab Automation Integration
Lilly · Indianapolis, Indiana, United States of America · Principal
Function Therapeutic area Seniority Country
60%
Principal Scientist, Downstream Process Development
Merck · Rahway, New Jersey, United States of America · Principal
Function Therapeutic area Seniority Country
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.