Bachelor's or advanced degree in Metallurgical Engineering, Extractive Metallurgy, Mining Engineering, Mineral Processing, Materials Science, Chemical Engineering, or a related discipline
15+ years of experience in extractive metallurgy, mineral processing, or metals process engineering
Proven track record of deploying a flowsheet from pilot scale to commercial operation
Extensive industrial-scale experience in pyrometallurgy or hydrometallurgy; experience in both is preferred
Hands-on experience in an operating plant environment, such as a smelter, refinery, or concentrator
Familiarity with comminution and physical separation of heterogeneous feedstocks
Responsibilities
Serve as the senior technical authority on extractive metallurgy for recycling and refining flowsheets
Lead evaluation and selection of flowsheet options, translating data into recommendations for commercial deployment
Own the metallurgical basis for product quality specifications and diagnose impurity issues
Direct strategy for mineral processing and mechanical separation of heterogeneous feedstocks
Guide scale-up from bench to commercial operation, including mass and energy balances
Partner with Business Development to define process pathways and pricing for new feedstocks
Advise operations and process engineering teams on recovery and yield shortfalls, enhancing metallurgical rigor
Benefits
Full-time position
Opportunity to work closely with CTO and CEO
Engagement in innovative and strategic projects
Potential for professional growth and mentorship opportunities
Involvement in cutting-edge recycling and refining technologies
Full Job Description
Position Summary:
The position serves as Redwood's senior technical authority on extractive metallurgy across the company's recycling and refining operations. The role owns the metallurgical basis of design for how Redwood liberates, separates, and refines metals from recycled feedstocks, spanning mechanical separation of heterogeneous feeds, high-temperature processing, hydrometallurgical refining, and electrochemical upgrading of battery metals and other critical minerals. The position exercises independent judgment on methods and evaluation criteria for first-of-a-kind processes where data is incomplete, and its recommendations determine which flowsheets Redwood deploys at commercial scale. This is a strategic individual contributor role with regular interaction with Redwood's CTO and CEO, and success depends on driving innovation and plant deployment at an exceptional pace.
Essential Duties and Responsibilities
Serves as Redwood's senior technical authority on extractive metallurgy, owning the metallurgical basis of design for recycling and refining flowsheets from feedstock through refined product
Leads evaluation and selection of competing flowsheet options, translating bench and pilot data into defensible recommendations for commercial deployment
Owns the metallurgical basis for intermediate and final product quality specifications, diagnosing impurity deportment across unit operations and driving issues to root cause
Directs strategy for mineral processing and mechanical separation of heterogeneous feedstocks, including comminution, liberation, classification, and physical concentration
Guides scale-up from bench through pilot to commercial operation, including mass and energy balances, equipment selection, and vendor test campaigns
Partners with Business Development to define process pathways and pricing for new feedstocks and to identify offtake markets and their value drivers
Advises operations and process engineering teams on recovery, yield, and reliability shortfalls at commissioned plants, and raises metallurgical rigor across the engineering organization through technical review and mentorship
Skills, Knowledge, and Abilities
Bachelor's or advanced degree in Metallurgical Engineering, Extractive Metallurgy, Mining Engineering, Mineral Processing, Materials Science, Chemical Engineering, or a related discipline
15+ years of experience in extractive metallurgy, mineral processing, or metals process engineering, or equivalent depth of expertise
Demonstrated ownership of deploying a flowsheet from pilot scale through commercial operation, with accountability for the plant's technical performance
Deep industrial-scale experience in pyrometallurgy or hydrometallurgy; experience across both preferred
Hands-on experience in an operating plant environment such as a smelter, refinery, or concentrator, with ability to travel to plant sites as required
Experience with comminution and physical separation of variable, heterogeneous feedstocks
The position is full-time. Compensation will be commensurate with experience.
