Associate Principal Scientist
Architecture & Engineering (Physical)Posted 17 Jul 2026
Advertised as “Associate Principal Scientist, Engineering”
Posted 17 Jul 2026
Advertised as “Associate Principal Scientist, Engineering”
The original posting with the fluff stripped out
| Base salary | US$142,500 – US$224,000 / yr |
|---|
Field of studyBiochemical Engineering, Chemical Engineering (or related)
Study levelBachelor's or higher
Job Description
Position Description
The Chemical Engineering Research & Development department (CERD), part of the Process Research and Development organization, is seeking highly motivated individuals who are looking for an opportunity to work in a fast-paced job that provides a high degree of technical responsibility. This position involves hands-on process development/scale-up work performed at scales spanning the range from laboratory scale to commercial manufacturing scale.
Under scientific and administrative direction, an engineer in this role conducts independent research which involves conceiving, designing, planning, and implementing advanced experiments aimed at achieving research goals related to process development, technology development, and production of active pharmaceutical ingredients (API). The candidate may also have the opportunity to manage process development and/or manufacturing activities at external suppliers. The engineer will be expected to exhibit a mindset of safety and quality compliance, which will include following current Good Manufacturing Practices (cGMPs), and participating in risk assessments, deviation investigations, and Good Documentation Practices (GDPs).
A high level of innovation, creativity, and self-initiative along with the ability to plan and organize activities are expected. Successful candidates will be required to communicate regularly, clearly, and with confidence as they discuss technical problems, support pilot plant operations, and interface with cross-functional colleagues/customers.
This role requires approximately 10-15% travel.
Position Qualifications:
Education Minimum Requirement:
The position requires either a BS and/or MS in Chemical/Biochemical Engineering (or comparable) from an accredited College/University plus at least 8 years of relevant work experience in process development
OR
PhD in Chemical/Biochemical Engineering (or comparable) from an accredited College/University with at least 3 years of relevant work experience post PhD defense.
Required Experience and Skills:
For BS/MS candidates, at least 8 years of relevant work experience post-graduation - OR – for PhD candidates with at least 3 years of relevant work experience post PhD defense, where relevant work experience would include the following:
Experience performing lab-based research/process development in a chemical engineering-related area.
Experience with process scale-up and/or technology transfer, moving from laboratory to pilot plant or production scale.
Highly effective communication and collaboration skills
Good organizational, interpersonal, writing, and time management skills
Preferred Experience and Skills:
Direct experience with pharmaceutical drug substance development
Familiarity with concepts and application of cGMP and GDP during pharmaceutical development and production.
Experience applying statistical experimental design (i.e. Design of Experiments) and/or process modeling
Experience with chemical engineering-related technology development
Required Skills:
Chemical Engineering, Communication, Data Analysis, Decision Making, Detail-Oriented, Manufacturing Scale-Up, Mentorship, Pharmaceutical Development
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:
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/International
VISA Sponsorship:
Yes
Travel Requirements:
10%
Flexible Work Arrangements:
Not Applicable
Shift:
Not Indicated
Valid Driving License:
No
Hazardous Material(s):
N/A
Job Posting End Date:
07/24/2026
*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.