Our company is a global health care leader with a diversified portfolio of prescription medicines, vaccines and consumer health products, as well as animal health products. Today, we are building a new kind of healthcare company – one that is ready to help create a healthier future for all of us.
The Department of Pharmacokinetics, Dynamics, Metabolism, and Bioanalytics (PDMB) within our Company’s Research Laboratories is seeking a highly motivated and scientifically accomplished Senior Scientist to join the Vaccine Regulated Bioanalytics (RegBA) team.
Regulated Bioanalytics serves as a center of excellence for the development, validation, and execution of bioanalytical methods that support our Company’s portfolio across all stages of drug and vaccine development. The group generates high-quality, regulatory-compliant data to enable decision making for clinical and preclinical programs, while advancing bioanalytical science through automation, innovative assay platforms, and modern data capabilities.
The successful candidate will possess strong expertise in ligand binding assays (LBA) and/or cell-mediated immunogenicity (CMI)/cell-based assays, along with a demonstrated ability to generate high-quality data in a GxP-regulated environment. The individual will contribute hands-on to assay development, qualification/validation, troubleshooting, and regulated sample testing, while collaborating across cross-functional teams.
This lab-based role requires strong bench-level expertise, critical thinking, and the ability to design, execute and interpret complex experiments. Excellent communication skills and the ability to work effectively in a highly collaborative, cross-functional environment are essential.
This position offers the opportunity to collaborate with scientists across the PDMB network and with colleagues in Clinical, Regulatory, Quality, Data Science, and Discovery to advance programs. The successful candidate will also contribute to the evolution of bioanalytical strategy, including implementation of automated platforms and emerging technologies to improve assay robustness, throughput, and data quality.
Education Minimum Requirement:
PhD in Biological Sciences or related area with 0-3 years, or a MS degree with 4+ years, or a BS degree with 7+ years
Required Experience and Skills:
Demonstrated ability to design experiments, troubleshoot assay performance, and interpret complex data using sound scientific judgment.
Strong hands-on, bench-level experimental expertise, with demonstrated critical thinking and the ability to independently design, execute, and evaluate outcomes
Strong data analysis and interpretation skills, including use of common analytical tools (e.g., GraphPad Prism or equivalent).
Understand and adhere to regulated frameworks and guidance in collaboration with team leads.
Ability to document findings and prepare high-quality reports and protocols to support regulatory submissions.
Strong written and verbal communication skills, with the ability to communicate findings to both technical and non-technical stakeholders.
Ability to work independently while managing multiple priorities and responsibilities within a regulated environment.
Preferred Experience and Skills:
Experience developing, optimizing, and executing bioanalytical assays in a regulated environment, particularly ligand binding assays (LBA) (e.g., ELISA).
Luminex) and/or cell-based/CMI assays (Fluorospot, ELISpot, Flow Cytometry).
Hands-on experience with laboratory automation (e.g., liquid handlers, robotics) to support assay execution and scaling.
Familiarity with Laboratory Information Management Systems (LIMS) and electronic lab notebooks.
Experience contributing to SOP development and continuous improvement initiatives.
Ability to evaluate and implement emerging bioanalytical technologies to enhance assay performance and efficiency.
Experience participating in regulatory submissions or supporting regulatory interactions.
Demonstrated ability to mentor or guide junior scientists and contribute to a collaborative team environment.
Required Skills:
Assay, Assay Development, Bioanalysis, Biochemical Analysis, Biochemical Assays, Cell-Based Assays, Clinical Decision Making, Clinical Decision Support (CDS), Critical Thinking, Detail-Oriented, Drug Metabolism, Flow Cytometry, Fluoroscopy, GraphPad Prism, Laboratory Automation, Ligand Binding Assay, Partnership Strategy, Pharmacokinetics, Teamwork
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
$117,000.00 - $184,200.00
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:
No Travel Required
Flexible Work Arrangements:
Not Applicable
Shift:
Not Indicated
Valid Driving License:
No
Hazardous Material(s):
N/A
Job Posting End Date:
06/25/2026
*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.

At MSD, known as Merck & Co., Inc., Rahway, NJ, USA in the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world – and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities. For more information, visit www.msd.com and connect with us on Facebook, Instagram, Twitter, and YouTube.