Chemical Engineer

About the CompanyPrinceton Critical Minerals Inc (PCM) is a Princeton University spinout developing breakthrough technologies to enable sustainable extraction of lithium and other critical minerals. Our mission is to increase global mineral supply while minimizing water use, energy consumption, and environmental impact. We operate at the intersection of materials science, chemical engineering, and field-scale deployment, with active pilot programs in the U.S. and internationally.About the RoleWe are seeking a highly motivated Chemical Engineer or Chemist to join our team and help develop innovative, cost-effective solutions for mineral extraction from brine resources. This role spans lab research, pilot testing, and field deployment, with direct impact on scaling next-generation extraction technologies.ResponsibilitiesDesign and develop materials, coatings, and chemical processes to enhance mineral extraction efficiency from brine systemsPlan and execute laboratory experiments and field trials independently, including pilot-scale testingAnalyze experimental data and translate findings into actionable process improvementsDevelop and maintain technical documentation, SOPs, and operational protocolsSupport product validation and performance benchmarking in real-world environmentsCollaborate on sensor integration, data analysis, and process monitoring systemsParticipate in technical reviews and contribute to engineering design decisionsCommunicate results and insights to internal teams, partners, and customers QualificationsBachelor’s, Master’s, or PhD in Chemical Engineering, Chemistry, Environmental Engineering, Geoscience, or related fieldStrong foundation in process engineering, brine chemistry, and materials scienceExperience with experimental design, data analysis, and process optimizationFamiliarity with process simulation tools, sensor systems, or data analytics platforms is a plusExperience in field work, pilot systems, or industrial environments preferredStrong written and verbal communication skills (English required; Spanish is a plus)Hands-on, problem-solving mindset with the ability to work in fast-paced, multidisciplinary teamsWillingness to travel to field sites (U.S. and international) as needed PCM Inc. is an equal opportunity employer committed to building a diverse and inclusive team.