Sr. Scientist, Analytical Development

Job Description Join Our Company’s Rahway Animal Health Team Our Company's Global Animal Health Research & Development (R&D) division is a pioneer in the discovery, development and registration of medicines, products, and therapeutics for animals. To strengthen the team responsible for our global initiatives, we are looking for a highly skilled and motivated individual to join our R&D team. Purpose of the Role The Senior Scientist - Analytical Development plays a key role in our company' animal health research and development, by supporting the analytical development of high priority drug candidates and execute studies to characterize key physical and chemical properties of active pharmaceutical ingredients, excipients, and formulated drug products (e.g., tablets, solutions, implants). Key responsibilities include, but not limited to the following Work in a team environment on multiple, concurrent projects and experiments of moderate complexity. Maintain high-quality documentation, independently analyze and interpret data, and prepare technical reports and external publications (as appropriate). Work as part of a team to develop, characterize, and apply new analytical methods, generating data to guide product development and secure successful commercialization of new veterinary medicinal products. Use non-routine approaches to solve challenging technical problems related to purity, stability, packaging, and manufacturing. Techniques often used by persons in these positions include separation techniques (e.g., HPLC, GC, TLC), in-vitro dissolution, general/wet chemical methods, physical characterizations (e.g., particle size analysis, SEM and light microscopy), spectroscopy (e.g., UV/Vis and FTIR) and thermal methods (e.g., DSC, TGA). Opportunities are available for candidates with intermediate to advanced levels of experience. The candidate will have demonstrated good laboratory skills and a solid understanding of analytical and physical chemistry. This position requires the ability to work well in a highly collaborative environment as well as excellent oral and written communication skills. With the direction of management, the Senior Scientist participates in project teams and collaborates with key partner groups in the successful and efficient execution of project and department goals. Moreover, this individual will help develop junior staff and embrace cultural change to support and realize the strategic vision of the organization Education Minimum Requirement: Masters degree or Ph.D. in Chemistry, Pharmacy or other scientific discipline Required Experience and Skills Minimum 3 years previous pharmaceutical experience with a master's degree, or a PhD in relevant scientific studies Candidates must have strong technical skills and a demonstrated track record of successfully contributing to the development of pharmaceutical raw materials/actives and/or drug products for animal or human health. Experience should include high proficiency in analytical laboratory techniques. Ability to work under the general direction of a laboratory supervisor is required. Preferred Experience and Skills: The ideal candidate will have a personal drive for results and a demonstrated history of achievement in pharmaceutical research & development. The candidate should have strong oral and written communication skills, including experience authoring technical documents. An ability to multitask is important in this role. Attention to detail, customer focus, and continuous improvement are also important to this role. Animal Health Our Animal Health Division is a trusted global leader in veterinary medicine, dedicated to preserving and improving health, well-being, and performance of animals and the people who care for them. We are a global team of professionals working together to make a positive difference in animal care and the world’s food supply and have a deep sense of responsibility towards our customers, consumers, animals, society, and our planet. Through our commitment to The Science of Healthier Animals®, we offer veterinarians, farmers, pet owners and governments one of the widest ranges of veterinary pharmaceuticals, vaccines and health management solutions and services. We invest in dynamic and comprehensive R&D resources and a modern, global supply chain. We are present in more than 50 countries, while our products are available in some 150 markets. Required Skills: Adaptability, Bioprocessing, Data Analysis, Flow Cytometry, Infrared Spectroscopy, Innovative Thinking, Laboratory Analysis, Laboratory Techniques, Molecular Biology Techniques, Multi-Color Flow Cytometry, Particle Size Analysis, Preformulation, Protein Biochemistry, Research and Development, Spectrometry 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: EEOC Know Your Rights 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 $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 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: Not Indicated Valid Driving License: No Hazardous Material(s): N/A Job Posting End Date: 06/22/2026 *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. Our company is a global health care leader with a diversified portfolio of prescription medicines, vaccines and animal health products. The difference between potential and achievement lies in the spark that fuels innovation and inventiveness; this is the space where we have codified our legacy for over a century. Our success is backed by ethical integrity, forward momentum, and an inspiring mission to achieve new milestones in global healthcare.