Join to apply for the Chemical Process Engineer role at Mariana Minerals Join to apply for the Chemical Process Engineer role at Mariana Minerals Role Overview Role Overview Mariana Minerals is looking for a highly motivated Process Engineer to work on building the critical minerals supply chain. As a Process Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind chemical refining processes, while also supporting development of software for capital project execution and automated plant optimization. Responsibilities will include leading equipment scopes from concept through to design, installation, commissioning, ramp, and handover to the operations team. What You’ll Bring Lead equipment scopes from concept and modeling validation, through procurement, engineering, fabrication, installation, commissioning, and ramp Manage external equipment providers, technology licensors, and engineering companies to deliver fully integrated and functional mineral refining scopes. Build heat and material balances for integrated mineral refineries Build hydraulic models and develop P&IDs for mineral refineries Build first-principles-based models of chemical reactors and unit operations to validate and scale-up designs Identify, evaluate, and implement engineering solutions to optimize process and reactor designs, confirming functionality and performance under various operating conditions Work closely with cross-functional teams including lab technicians, pilot plant engineers, process engineers, project execution teams, and more to scale designs from lab through to commercial scale Work closely with the software and machine learning teams to automate capital project execution workflows and develop reactor and plant optimization algorithms What You’ll Bring Strong understanding of engineering fundamentals and demonstrated ability to leverage the understanding to solve challenging problems Experience with equipment engineering and design. Including but not limited to: Brownfield equipment modifications and upgrades Greenfield equipment design Evaluation and optimization of operating equipment Experience with the following industries and/or production environments: Industrial manufacturing Large-scale mining or mineral processing Large-scale chemical production processes Engineering, procurement, and construction firms Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Industries Metal Ore Mining Referrals increase your chances of interviewing at Mariana Minerals by 2x Sign in to set job alerts for “Chemical Process Engineer” roles. San Francisco, CA $117,000.00-$150,000.00 1 month ago San Francisco, CA $117,000.00-$150,000.00 1 month ago Martinez, CA $90,700.00-$136,100.00 2 weeks ago OPEN POSITIONS AT AMMOBIA (SAN FRANCISCO, CALIFORNIA) Refining Chemical Engineering Intern/Co-op Fall 2025 Chemical Engineer, Pilot Reaction and Process Development San Francisco, CA $100,000.00-$200,000.00 1 month ago Oakland, CA $90,000.00-$122,000.00 2 weeks ago Reactor/Process Modeling and Simulation Engineer San Francisco, CA $100,000.00-$170,000.00 1 month ago San Francisco, CA $130,000.00-$220,000.00 4 months ago Associate Engineer (Downstream Process Development) Process Engineer, application via RippleMatch Process Engineer, application via RippleMatch Air Quality Engineer/Scientist (Environmental Compliance Specialist) Alameda, CA $116,000.00-$174,000.00 2 weeks ago San Francisco, CA $110,000.00-$140,000.00 1 month ago Associate Scientist II, Downstream Pilot Plant, Protein Process Development & Manufacturing AI Trainer for Chemical Engineering (Freelance, Remote) Process Design Engineer, Inert Gas System Alameda, CA $125,000.00-$147,100.00 4 days ago Process Integration & Applications Engineer – PCB & Advanced Packaging Alameda, CA $90,000.00-$120,000.00 3 days ago Senior Manufacturing Process Engineer @ Smart Home startup Redwood City, CA $120,000.00-$200,000.00 2 weeks ago Alameda, CA $100,000.00-$130,000.00 1 week ago Pleasant Hill, CA $80,000.00-$100,000.00 1 week ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr Mariana Minerals
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