Merck Posted August 30, 2026

Biologics Process Research & Development, Associate Scientist

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

Job Description

Our Research Scientists are our Inventors.  Using innovative thinking, state-of-the-art facilities, and robust scientific methodology, we partner to deliver the next medical breakthrough.

Biologics Process Research & Development (BPR&D) within our Research & Development Division is on a mission to rapidly deliver diverse biotherapeutics to patients by efficiently developing innovative, robust manufacturing processes and technologies. To achieve this, we work closely with colleagues in Discovery, Pre-clinical, Early Development, Analytical, Formulation, and Commercial Manufacturing while providing a diverse and inclusive environment for all. Beyond process development for pipeline biologics, we innovate and build next generation biomanufacturing technologies. Examples include investments for development of continuous manufacturing, green and sustainable processes, and proprietary technology platforms. We actively publish and engage with the scientific community to influence the field.

BPR&D includes three lab-facing technical functional areas: Process Cell Sciences (PCS), Upstream and Downstream Process Development & Engineering. The latter two together form our Process Development (PD) group that works on both the early- and late-stage pipeline. This job posting covers opportunities for the PD group. We are actively looking for highly motivated people with a passion for innovation and interest in contributing to upstream and/or downstream bioprocessing.

As an Associate Scientist, you will work with a highly collaborative team of scientists and engineers to design, develop and execute robust processes in support of early- to late-stage biological products. You will apply rigorous scientific principles to solve challenging problems focused on developing the best processes to deliver life-changing medicines to patients worldwide. You will also have an opportunity to contribute to additional areas of interest such as biophysical, process, economic and/or multivariate modeling as we are committed to leveraging digital ways of working to enhance our ability to design robust processes.

Responsibilities include but are not limited to:

Contribute to the development of innovative and disruptive technologies for next-generation biologic manufacturing processes

Develop and characterize robust clinical processes capable of delivering multi-kilogram quantities of drug substance

Independently design and conduct experiments for individual unit operations using relevant operational parameters and analytical inputs

Integrate unit operations both physically and with relevant process control and monitoring platforms for concurrent operations

Collaborate across BPR&D, process analytics, and other functional teams in both R&D and manufacturing to advance the biologics pipeline

Conduct laboratory-scale and/or pilot-scale studies to support scale-up and tech transfer of processes

Contribute to a safe and compliant laboratory work environment

MINIMUM EDUCATION REQUIREMENTS:

Education:

BS degree (or expected completion by June 2027) in Chemical/Biochemical/Biomedical Engineering, Biotechnology, Biochemistry, Microbiology, Structural biology, or related fields

REQUIRED EXPERIENCE AND SKILLS:

Scientific understanding of the engineering principles for recombinant protein production unit operations.

Knowledge with aseptic technique, protein biophysical properties, and general protein laboratory practices

Strong passion and commitment to integrate science and innovation into biologics’ process development

PREFERRED EXPERIENCE AND SKILLS:

Experience with molecular biology, protein expression, mammalian cell culture, protein purification, biochemical engineering, or protein analytical technologies

Knowledge of statistical data analysis tools such as the design of experiments and multivariate data analysis

#BPRD #PRD # eligibleforERP

Required Skills:

Bioprocesses, Business Process Documentation, Centrifugation, Chromatographic Techniques, Cross-Functional Teamwork, Data Analysis, Downstream Process Development, Evaluating New Technologies, Experimentation, Innovation, Membrane Filtration Systems, Process Scale Up, Protein Biochemistry, Protein Purifications, Technology Transfer

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

$71,900.00 - $113,200.00

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:

10%

Flexible Work Arrangements:

Not Applicable

Shift:

Not Indicated

Valid Driving License:

No

Hazardous Material(s):

N/A

Job Posting End Date:

11/25/2026 *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:R413843

Job details

Seniority
Associate
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 488 comparable Associate Manufacturing & CMC roles across 80 biopharma companies.

488Comparable roles tracked
469Currently active
80Companies hiring similar roles
31Countries represented

Salary context

109 of 488 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 $71,900/yr – $113,200/yr
Lowest disclosed · Distribution Associate 2 · Merck KGaA $25/hr – $28/hr (≈ $52,000–$58,240/yr)
Highest disclosed · Regional Manager - Megasys · Merck KGaA $220,000/yr – $250,000/yr
Peer group range $55,120 – $235,000 (median $136,800)

Where these roles are based

Top locations among the 488 comparable roles

United States273
India52
Germany17
Switzerland15
Netherlands15
Ireland15

+ 25 more countries

Seniority mix

488 of 488 peers have a known seniority level

Manager248
Associate130
Intern/Fellow/Postdoc110

Therapeutic area mix

7 of 488 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease5
Rare Disease2

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 Associate
Same function Same seniority Same country
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Bayer Indianola, United States Associate
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Notify me about similar jobs

Get an email when we spot other openings like this one – same job function, comparable seniority, roles you'd actually want to see.

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%
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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.