✦ Luna Orbit — Engineering (Non-Software)

Senior Scientist, Engineering- Small Molecule Drug Substance Process Development

at Merck

📍 USA - New Jersey - Rahway Hybrid 💰 $117K – $184K USD / year Posted April 03, 2026
Salary $117K – $184K USD / year
Type Full-Time
Experience mid
Exp. Years 4 years
Education BS and/or MS with a minimum of 5 years relevant work experience or PhD in Chemical Engineering
Category Engineering (Non-Software)

Senior Scientist, Engineering- Small Molecule Drug Substance Process Development develops and optimizes manufacturing processes for small molecules in a collaborative, cGMP-compliant environment, including tech transfer to pilot and production facilities.

  • Process development experiments
  • Scale-up and technology transfer
  • Regulatory filing support
  • Cross-functional collaboration
  • Maintain GDP and data integrity

Role spans bench and kilo labs with emphasis on chemical process development, chromatographic operations, scale-up, and regulatory documentation; requires cross-functional collaboration and adherence to cGMP.

The ideal candidate is a mid-to-senior scientist with hands-on chemical process development in small molecule drug substance, strong understanding of cGMP and scale-up, and ability to lead cross-functional technology transfer initiatives.

BS and/or MS with a minimum of 5 years relevant work experience or PhD in Chemical EngineeringExperience in chemical process developmentcGMP complianceDOEProcess scale-upTechnology transfer
Experience performing regulatory filing/validation planningKnowledge of QbD (Quality by Design)Pilot plant experienceMathematical modeling
HPLCSDS-PAGEUV-VisLight Scattering
BioreactorscGMP RegulationsChemical EngineeringChemical TechnologyChromatographic TechniquesData AnalysisDesign of Experiments (DOE)GMPManufacturing ProcessesProcess DevelopmentProcess OptimizationProcess Scale UpSmall MoleculesTechnology Transfer
BioreactorscGMP RegulationsChemical EngineeringChemical TechnologyChromatographic TechniquesData AnalysisDesign of Experiments (DOE)Good Manufacturing Practices (GMP)Manufacturing ProcessesProcess Development (PD)Process OptimizationProcess Scale UpSmall MoleculesTechnology Transfer
AdaptabilityCommunicationCollaborationInterpersonal RelationshipsTime ManagementDetail-Oriented
Industry Healthcare & Medical
Job Function Develop and optimize small molecule drug substance processes from lab to production scale.
Visa Sponsorship Yes
bioreactorscGMP regulationschemical engineeringchemical technologychromatographic techniquesdata analysisdesign of experimentsGMPmanufacturing processesprocess developmentprocess optimizationprocess scale upsmall moleculestechnology transferregulatory filingvalidation planningpilot plantcGMPsafety compliancecross-functionalchemical process developmentDOEprocess scale-uptech transferHPLCQA documentation

Lack of experience in small molecule process development, No exposure to cGMP manufacturing, Inability to operate in hybrid work model, No BS/MS/PhD in relevant fields

Apply for this Position →

Get matched to jobs like this

Luna finds roles that fit your skills and career goals — no endless scrolling required.

Create a Free Profile