Merck Posted October 9, 2026

Associate Specialist – Modality Agnostic Chemistry Scaleup Operations (Alternating Shift)

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

Job Description

Job Description:

MACS (Modality Agnostic Chemistry Scaleup) Operations group within the Chemical Engineering Research & Development (CERD) Department is seeking a highly motivated individual to work in a fast-paced job that provides operations experience and a strong understanding of engineering fundamentals. The MACS Operations Specialist position will report to the Associate Director, Engineering and will be a member of the MACS Operations team at the Rahway, NJ facility.   Responsibilities of the Operations Specialist include the following:

The Operations Specialist role at the Associate Specialist level will serve as an operations team member supporting the Modality Agnostic Chemistry Scaleup (MACS) Center. This is a new potent, multi-modality (small molecule, macrocyclic peptides, bioconjugates) Drug Substance development and GMP clinical manufacturing plant under construction in Rahway, New Jersey. They will serve as a team member for the MACS Center  startup and testing phase and will go on to support MACS pilot plant operations and/or existing facilities across the Small Molecule Process Research & Development (SM PR&D) network.

As the facility is currently under construction, the selected candidate will contribute to equipment and facility design, equipment or material testing, system commissioning/qualification, as well as other critical activity workstreams to enable facility startup. Additionally, the selected candidate will be a key contributor to the Operational Readiness program with the purpose of establishing the procedures, documentation, and training necessary to operate and maintain a new business area after completion of the facility startup. The selected candidate is expected to be a key part of the operations team and foster a culture of collaboration, learning and innovation.

They will collaborate closely with the development engineers & chemists, compliance representatives, and other team members to ensure the quality and safe delivery of clinical supplies. Once the MACS Center is operational, additional tasks could include equipment setups, raw material sampling and subdivisions, solution preparations, batch processing planning and execution at a pilot scale, process knowledge capture, and troubleshooting equipment with the aim of advancing process development, aiding technology development, and supplying Active Pharmaceutical Ingredient (API) for clinical use and drug product development. This will involve handling of a variety of reagents, solvents, and active pharmaceutical ingredients during “wet chemistry” operations (performing chemical reactions, extractions, distillations, crystallizations, filtration, drying, etc.) as well as dry powder processing (e.g., dry milling).

Additional Supported Areas:

As required and in addition to support of current capital projects the Associate Specialist may provide direct support to other areas such as:

Small Scale Organics Pilot Plant (SSO) : The SSO is a Good Manufacturing Practice (GMP) manufacturing facility in the Process Research and Development (PR&D) organization.  The pilot plant’s mission is to serve as PR&D’s internal node for small molecule drug substance clinical manufacture, and as preferred site for first pilot of commercial small molecule processes, enabling gain of critical internal experience with scale-up of manufacturing GMP steps, demonstration of new manufacturing technology/processes, training opportunities for improved manufacturing process development and seamless tech transfer to commercial sites.

Prep Lab Area: The Prep Lab is used to generate data which contributes to process definition and provides Phase I/IIa clinical material when needed. This kilo scale capability establishes reaction parameters and ensures successful batches when transferring to pilot scale. The Prep Lab includes a cleanroom suite for GMP small-scale manufacturing of potent and multi-modality clinical materials. Areas of the Prep Lab have been and are continuing to be upgraded to support pipeline programs such as ADCs, PDCs, and other cross modality compounds that require a more flexible potent compound processing space.

Education Minimum Requirement:

 

Bachelor’s degree in Chemical Engineering, Chemistry, Biology, Pharmaceutical Sciences or related scientific field plus one (1) year relevant work experience – OR - Associate in Science, Associate in Applied Science (ideally in Process Technology), or Associate degree in a relevant technical field of study plus at least six (6)  years experience – OR - High School Diploma/GED plus at least eight (8) years of relevant experience in Pharmaceutical, Chemical, Petrochemical or Food Processing/Manufacturing.

Required Experience and Skills:

This role will require working on 8-hour shifts that are currently one common shift across the Operations team but will later rotate between 1st and 2nd shift on alternating weeks as the MACS Center is coming online and in full operations. Onsite presence is required five days a week. Occasional overtime work may be required based on business needs.

Effective interpersonal and communication skills, both verbal and written.

Excellent organizational skills to multi-task.

Desire and willingness to learn, contribute and lead.

Track-record of independent problem-solving.

A strong mechanical aptitude.

Proficiency in technical writing and the use of word processing, spreadsheet, graphing, and presentation software.

Desired Experience and Skills:

Experience working in a GMP clinical or manufacturing supply facility.

Experience with GMP facility design, equipment start-up and/or qualification.

Experience with small molecule drug substance and/or biologics process development.

Experience in supporting compliance investigations and change management.

Ability to prepare or leverage Standard Operating Procedures (SOP) and cGMP documents.

Experience operating/maintaining pilot scale or prep lab scale equipment.

Experience in Process Hazard Analysis (PHA) and/or Level of Protection Analysis (LOPA)

Experience with Potent Compound processing and containment systems (e.g., isolators), or clean room facilities.

Experience interacting with or overseeing the management of process utility system associated with a large drug substance pilot plant including WFI generation/distribution, Process Chillers, Vacuum Systems, etc.

Experience working in an environment with an Automation System (DeltaV, PLC, etc.).

Operations experience in pilot plant or manufacturing environment.

Familiarity with the administration of cGMPs, Good Documentation Practices (GDPs), and S&E regulations as it pertains to pharmaceutical development.

Lean Six Sigma Training / Certification.

Hours:

1st shift: 8:00am - 4:00pm

2nd shift: 12:30pm-8:30pm (eventually will transition to 4pm - 12pm)

EligibleforERP

MSJR

Required Skills:

Assembly Operations, Bulk Load, Chemical Engineering, Equipment Operations, Equipment Set Up, Manufacturing Technologies, Mechanical Aptitude, Pharmaceutical Manufacturing, Pilot Projects, Powder Handling, Powder Processing, Process Technologies, Production Efficiencies, Safety Protocols, Shift Work, Solids Handling, Specialty Chemicals, Spray Drying, Technical Writing

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

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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:

1st - Day, 2nd - Evening

Valid Driving License:

No

Hazardous Material(s):

HTHM, OEB4/5

Job Posting End Date:

10/26/2026 *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:R420497

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 789 comparable Associate Manufacturing & CMC roles across 94 biopharma companies.

789Comparable roles tracked
713Currently active
94Companies hiring similar roles
38Countries represented

Salary context

167 of 789 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 · Warehouse Associate I (M-F 11am-7:30pm) · AbbVie $16/hr – $29/hr (≈ $33,280–$60,320/yr)
Highest disclosed · Regional Manager - Megasys · Merck KGaA $220,000/yr – $250,000/yr
Peer group range $46,800 – $235,000 (median $139,250)

Where these roles are based

Top locations among the 789 comparable roles

United States404
France55
India55
Germany42
Ireland29
Switzerland23

+ 32 more countries

Seniority mix

789 of 789 peers have a known seniority level

Manager374
Intern/Fellow/Postdoc251
Associate164

Therapeutic area mix

13 of 789 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease9
Rare Disease3
Immunology1

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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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