2.1 Senior Process Engineer – Hydrometallurgist

About Phoenix Tailings 

Phoenix Tailings is a rapidly growing clean mining and metals production startup dedicated to sustainable and economic critical metals production. Our mission is to be the world’s first fully clean mining and metals production company—producing the resources required to power the technology of today and tomorrow. 

Why Phoenix Tailings 

At Phoenix, we’re building more than technology—we’re building the future supply chain for critical and rare earth metals. This work matters. It demands urgency, rigor, and creativity. You’ll join a team that values ownership, technical excellence, and the courage to challenge legacy approaches to mining and metals production. 

Our Values:  

 

Who We Are Looking For: 

Key Responsibilities:

Lead the design, execution, and analysis of hydrometallurgical experiments involving leaching, purification, precipitation, precipitation, solid-liquid separation, solvent extraction, and related critical metals processes 
Develop and optimize process conditions for laboratory, bench-scale, and pilot-scale hydrometallurgical systems 
Translate experimental results into process flow diagrams, mass balances, operating windows, equipment specifications, and scale-up recommendations  
Provide technical leadership for wet chemistry work, including solution chemistry, acid-base chemistry, pH control, filtration, precipitation, reagent selection, and process troubleshooting 
Support equipment sizing and selection for reactors, filtration systems, thickeners, mixer-settlers, tanks, pumps, and other hydrometallurgical process equipment 
Lead root-cause analysis and troubleshooting for process performance issues, including recovery losses, impurity behavior, phase separation challenges, and process instability  
Collaborate with engineering, R&D, and operations teams to develop pilot-scale test plans, operating procedures, and process control strategies  
Mentor junior engineers, scientists, and technicians in experimental design, lab execution, safety practices, data interpretation, and technical documentation  
Maintain clear technical records and prepare reports, presentations, and recommendations for internal design reviews and leadership discussions  
Support the scale-up of Phoenix Tailings’ critical metals production processes from R&D through commercial deployment  

Qualifications:

Bachelor’s, Master’s, or PhD in Chemical Engineering, Metallurgical Engineering, Materials Science, Chemistry, or a related technical discipline  
5+ years of experience in hydrometallurgy, wet chemistry, chemical process development, mineral processing, metals refining, or related chemically intensive systems  
Strong hands-on experience with hydrometallurgical unit operations, including leaching, precipitation, filtration, solid-liquid separation, solvent extraction, purification, and crystallization  
Demonstrated experience translating laboratory or bench-scale data into pilot-scale or commercial process development decisions  
Strong underst