Job Description

We are seeking a Senior Scientist to join the Process Analytical Technologies (PAT) team within Analytical Enabling Capabilities (AEC). In this role, you will collaborate with a cross-functional, highly engaged team to advance the development pipeline and support commercial manufacturing. The successful candidate will lead the development, validation, and implementation of in-line, on-line, and at-line PAT solutions for both small- and large-molecule modalities. This position offers the opportunity to make a meaningful impact by advancing real-time analytical capabilities, enabling process monitoring and control, as well as supporting technology transfer and launch readiness efforts for programs progressing from early development into manufacturing.

Key responsibilities

• Develop, validate, and implement PAT methods (in-line, on-line, at-line) to monitor and control process parameters and product quality attributes.

• Support the systematic assessment and deployment of in-line, on-line, and at-line PAT methods across small- and large molecule programs.

• Deploy standardized analytical platforms to enable PAT implementation, including real-time monitoring and rapid shop-floor analytics.

• Support the scale-up activities and technology transfer of PAT applications to commercial manufacturing.

• Partner with capital project and facility teams to deploy integrated PAT infrastructure aligned with the launch preparedness strategy.

• Prepare and maintain scientific documentation and validation packages for PAT methods; contribute content for regulatory submissions.

Education guideline

• B.S. in chemistry, biochemistry, biotechnology, bioengineering, chemical engineering, or a related discipline with a minimum of 6 years of relevant industry experience; or

• M.S. with at least 4 years; or

• Ph.D. in a relevant discipline (expected completion no later than August 2026).

Required qualifications

• Technical background in spectroscopy (Raman, FTIR, NIR), chromatography, and chemometric/modeling approaches.

Preferred qualifications

• Experience supporting tech transfer, manufacturing scale-up, or regulatory filings.

• Proven track record of scientific contributions (peer-reviewed publications or equivalent technical outputs).

Attributes and competencies

• Strong collaborative and interpersonal skills; ability to work across functions and with external partners.

Required Skills:

Preferred Skills:

Current Employees apply

Current Contingent Workers apply

US and Puerto Rico Residents Only:

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, 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 .

You can apply for this role through (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:

Relocation:

VISA Sponsorship:

Travel Requirements:

Flexible Work Arrangements:

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