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Mariana MineralsPosted 1 week ago

Sr. Process Engineer

$120,000–$140,000 year

On-siteSan Francisco, California, United States

Full TimeSenior LevelDoctorate Or Professional DegreeStartup

Job Summary

Operate, maintain, and troubleshoot pilot-scale processing equipment while designing experiments to evaluate performance, recovery, and product quality. Create and maintain engineering documentation including PFDs, HMBs, and operating procedures. Lead equipment design scopes from concept through commissioning and handover to operations. Collaborate with cross-functional teams to scale designs from lab to production and develop reactor optimization algorithms with software and machine learning partners. Travel to pilot and commercial sites to drive startup and ramp-up activities. Requires a Chemical Engineering degree with five years of R&D scale-up experience in minerals processing or similar industries.

Required Qualifications

  • B.S., M.S., or PhD in Chemical Engineering or related field
  • Minimum of 5 years of experience supporting R&D scale up, pilot plant operation, and/or commercial production in minerals processing, chemicals, specialty materials, oil & gas, or similar industry
  • Strong understanding of reaction engineering, solid-liquid separation, leaching, ion exchange, solvent extraction, and/or similar unit operations
  • Hands-on experience designing, commissioning, and operating pilot or commercial-scale process equipment
  • Ability to design experiments, problem-solve, and analyze complex datasets
  • Strong commitment to Health & Safety and experience with risk management, management of change, and hazard assessment
  • Excellent technical writing, communication, and teamwork skills
  • Comfort working in fast-paced, cross-functional environments
  • Travel to pilot and commercial sites to drive commissioning, startup, and ramp-up alongside operations & plant design teams

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