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Job DescriptionThe Mixed Modalities team within Sterile Product Development is responsible for developing parenteral dosage forms (injections, implants, ophthalmic and inhaled products) for small molecules, intermediate modalities, and biologics from preclinical development through commercialization. Our development teams ensure robust formulation, primary packaging, sterilization strategy, and manufacturing process selection through deep scientific understanding and characterization, enabling scalable processes without compromising product quality, safety, efficacy, or delivery.This role is a technical leadership position with a strong focus on sterilization science and sterility assurance across drug products, primary containers, devices, and combination products, with specific focus on Intravitreal Product Development. The successful candidate will serve as a sterilization subject matter expert (SME), influencing development strategy, regulatory approaches, and manufacturing readiness for sterile products navigating transversally between fill finish, combination product, sterile barrier packaging and terminal surface sterilization areas.Primary DutiesServe as a principal level sterilization scientist, providing technical leadership for sterilization strategy, sterility assurance, and contamination control for sterile drug products, including injectable, ophthalmic, implantable, and inhaled dosage formsDefine, evaluate, and implement sterilization strategies across development stages, including moist heat, vaporized hydrogen peroxide (VHP), alternative low temperature technologies, and aseptic processing when terminal sterilization is not feasibleProvide strategic technical leadership on cross functional program teams, ensuring robust integration of formulation, container/closure systems, device compatibility, sterilization feasibility, and sterility assurance throughout developmentLead or contribute to sterilization, washing, and decontamination cycle development and validation, including:Cycle design aligned with user requirements specifications (URS), product and packaging constraints, and regulatory expectationsThermal and microbiological mapping studiesApplication of biological indicators, endotoxin control strategies, and sterility assurance principlesEvaluation of process residuals (e.g., moisture, hydrogen peroxide, NO2, ETO) and their impact on product quality, container closure integrity, and packaging performanceWork with cross-functional SME's from devices, packaging, Tech Ops and other functions to lead the Sterilant selection for a given product profile, based on product impact analysis, cycle time, facility fit, long term sustainability and other factors.Contribute to and influence regulatory submissions by authoring or reviewing sterilization- and CMC-related sections and supporting interactions with health authoritiesSupport early- and late-stage development programs by providing sterilization-focused input into scalable manufacturing processes, primary packaging selection, and compatibility assessments for processing, storage, and administrationMentor and technically guide scientists and engineers, fostering capability development in sterile product development, sterilization sciences, and GMP complianceBuild and maintain a strong internal and external professional network, including engagement with academic institutions, vendors, and regulatory bodies; contribute to knowledge dissemination through training, publications, or technical forums as appropriateMinimum Education RequirementsPh.D.

with 6+ years industry experience, orM.S. with 8+ years, orB.S. with 10+ yearsin Chemical Engineering, Biochemical Engineering, Pharmaceutics, Pharmaceutical Sciences, Microbiology, Chemistry, Biochemistry, or a related disciplineRequired Experience and SkillsDeep expertise in sterile drug product development across preclinical, clinical, and commercial stages, within a cGMP-regulated environmentDemonstrated hands-on and strategic experience in sterilization science, including:Sterilization cycle development and validationSterility assurance, microbiology, and environmental monitoringEndotoxin control and contamination control strategiesDecontamination and disinfection processesStrong understanding of sterilization technologies for pharmaceutical products, medical devices, and combination products, including risk-based selection of terminal vs.

aseptic approachesExperience applying Quality by Design (QbD) principles and DOE methodologies to formulation, process, and sterilization developmentProven experience with process scale-up, validation, and technology transfer, including collaboration with manufacturing sites and equipment vendorsWorking knowledge of FDA, ICH, and global regulatory expectations related to sterilization, aseptic processing, and CMCDemonstrated scientific leadership, strong communication skills, and a track record of mentoring and developing junior scientistsAbility to operate effectively in cross-functional, matrixed teams and drive decisions in complex technical environmentsPreferred Experience and SkillsDevelopment and Commercialization experience with Intravitreal product development and launch.Direct experience with working with contract sterilization service providers to develop recipe, transfer to manufacturing sites, and oversight of validation activities.Experience with RTU container sterilization challenges, including glass vial decontamination and low-temperature sterilization alternativesKnowledge of sterile equipment and facility design standards, including involvement in capital project teams and familiarity with FAT, SAT, and qualification/validation activitiesTrack record of supporting or influencing global regulatory filings and inspection readinessExperience delivering technical training or workshops related to sterilization, GMP compliance, or contamination controlRequired Skills: Biopharmaceutics, Combination Products, Contamination Control, Data Analysis, EtO Sterilization, GMP Compliance, Intravitreal Injections, Manufacturing Processes, Ophthalmology, Pharmaceutical Process Development, Process Manufacturing, Process Scale Up, Regulatory Filings, Sterile Products, Sterilization, Sterilization Techniques, Syringe Filling, Technology TransferPreferred 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 $173,200.00 - $272,600.00This 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: RegularRelocation:Domestic/InternationalVISA Sponsorship:Yes Travel Requirements: 10%Flexible Work Arrangements:Not ApplicableShift:Not IndicatedValid Driving License:NoHazardous Material(s):n/aJob Posting End Date:06/6/2026 *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.

Requisition ID:R395712 Salary: . Date posted: 05/28/2026