Ph.D. in Chemistry, Chemical Engineering, Metallurgy, Materials Science, or Hydrometallurgy, with a focus on rare-earth or critical-material separation. 10+ years of progressive industrial or research experience in rare-earths, specialty chemicals, or advanced materials. Proven success in scaling chemical or metallurgical processes from bench or pilot to production scale. Demonstrated ability to manage or lead multi-million-dollar R&D or CAPEX projects. Deep understanding of solvent extraction, ion exchange, and electrochemical refining. Expertise in laboratory safety, high-purity materials handling, and environmental compliance. Hands-on mindset with the ability to bridge academic theory with industrial practicality.