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Senior Specialist, Chemistry (Onsite

Job in Rahway, Union County, New Jersey, 07065, USA
Listing for: Merck
Full Time position
Listed on 2026-08-17
Job specializations:
  • Research/Development
    Pharmaceutical Science/ Research, Drug Discovery, Research Scientist
Job Description & How to Apply Below
Position: Senior Specialist, Chemistry (Onsite)
** Job Description*
* The Process Chemistry group within the Small Molecule Process Research & Development Department in Rahway, New Jersey is seeking a Senior Specialist to play a key role in advancing our pipeline of drug substances, including small molecules, macrocyclic peptides, and bioconjugates. This lab-based position offers an opportunity to drive Process Characterization of late-stage programs through establishment of proven acceptable ranges, fate and purge studies, and chemical marker preparation.  

This individual will also synthesize starting materials and intermediates to support route scouting efforts and support kilo lab scale syntheses.  The ideal candidate is highly motivated and has substantial synthetic chemistry experience, can perform independent analysis using various analytical characterization methods, and pays close attention to detail to ensure safe lab practices and rigorous documentation of work. A proven record of technical strength, clear written and oral communication, and collaboration and adaptability in a fast-paced, dynamic research environment is essential.

** Specific Responsibilities*
* + Laboratory-based characterization of late-stage syntheses to support commercialization of small molecule manufacturing by performing Design of Experiments, fate and purge studies, and chemical marker preparation

+ Laboratory work with a large variety of chemicals, using a set of modern manual and automated laboratory equipment, and leveraging an array of analytical technologies, in a safe, compliant, and rigorously documented manner

+ Laboratory-based synthesis and characterization of starting materials and intermediates to support route scouting, including kilo lab scale up of intermediates and APIs

+ Non-lab-based work includes experimental planning, data analysis, and writing clear and concise development reports

** Education*
* ** Minimum Requirement*
* + Ph.D. degree in Chemistry, an M.S. degree with 6 years of pharma/biopharma experience, or a B.S. with 9 years of pharma/biopharma experience.

** Required Experience and Skills*
* + Training must be in the field of organic synthesis, including synthetic methodology, catalysis, or total synthesis

+ Significant experience in chemical synthesis, compound purification, and analytical characterization, including HPLC, MS, and NMR techniques

+ Strong written and oral communication skills and the ability to work effectively and with urgency in a collaborative and team environment

+ The ability to work independently with minimum supervision of daily tasks

+ Productivity and efficiency working in an organic chemistry lab

PRD

eligibleforERP

*
* Required Skills:

*
* Biopharmaceutical Industry, Biopharmaceuticals, Biopharmaceutics, Chemical Synthesis, Cross-Cultural Teams, Data Analysis, Deviation Management, Facility Management, Good Manufacturing Practices (GMP), Nuclear Magnetic Resonance Spectroscopy (NMR), Pharmaceutical Biology, Pharmacokinetics, Proton Nuclear Magnetic Resonance, Sterile Manufacturing, Vaccine Manufacturing

** Preferred

Skills:

*
* Current Employees apply HERE ($6687.htmld)

Current Contingent Workers apply HERE ($4020.htmld)

** 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  ()  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 (https://(Use the "Apply for this Job" box below). EEOC Know Your Rights  10 20.pdf)

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

$ - $

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,…
Position Requirements
10+ Years work experience
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