Job Description
Laboratory Scientist, Genetic Toxicology
We are seeking a laboratory scientist to join the Genetic Toxicology group within Non-clinical Drug Safety. This individual will be part of a high performing group and primarily responsible for the conduct of in vitro genotoxicity studies in mammalian cells (e.g., in vitro micronucleus), under both screening and Good Laboratory Practice (GLP) conditions, in support of drug discovery and development.
Primary Responsibilities:
-In this role, the scientist will work with mammalian cell cultures or isolated samples from in vivo studies to perform routine and non-routine genetic toxicology assays.
-Responsibilities will include maintaining laboratory equipment in accordance with GLP, maintenance of cell cultures, manual microscopic analysis of fixed cells for the presence of micronuclei
-The individual will work in close collaboration with other scientists within the genetic toxicology group and other functional areas within Non-clinical Drug Safety.
-The individual will have a range of practical laboratory skills required in a cell biology lab and demonstrated expertise in working with in vitro cell cultures.
-Experience with in vitro micronucleus assay/chromosome aberration assay would be an advantage along with experience working in accordance with GLP standards .
-The individual will be expected to work in a team, be flexible with rapidly changing work assignments/schedules and
priorities, demonstrate problem-solving skills, and the ability to communicate effectively both verbally and in writing.
Education Requirements:
Bachelor of Science or MS degree (Biology, Cellular & Molecular biology, Chemistry, Biochemistry or related sciences) plus at least 3 years of relevant experience
Must-haves:
Excellent verbal and written communication skills
Demonstrated laboratory skills in cellular/molecular biology including in vitro cell culture techniques.
Preferred experience with Genetic Toxicology assay design and conduct, such as in vitro micronucleus assay .
Ability to successfully collaborate among a range of diverse scientific backgrounds, with the ability to
adapt, work in a matrix environment, and often meet tight timelines
Self-driven and accountable for own learning
Required Skills:
Assay, Biomarker Identification, Cell-Based Assays, Cell Cultures, Detail-Oriented, Experimentation, High-Throughput Screening, In Vitro Assays, Laboratory Techniques, Mammalian Cell, Mammalian Cell Culture, Microscopic Examination, Molecular Biology, Molecular Microbiology, Primary Cell Culture, Sample Processing, Scientific Writing, Teamwork, Technology Development, Toxicology
Preferred Skills:
Genotoxicity
Current Employees apply
Current Contingent Workers apply
US and Puerto Rico Residents Only:
The salary range for this role is
$87,300.00 - $137,400.00
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 .
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:
Regular
Relocation:
Domestic
VISA Sponsorship:
No
Travel Requirements:
10%
Flexible Work Arrangements:
Not Applicable
Shift:
1st - Day
Valid Driving License:
No
Hazardous Material(s):
mutagens
Job Posting End Date:
08/18/2026
*A job posting is effective until 11:59:59PM on the day BEFOREthe listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.
