Process Engineer (Minerals Processing)

Location: Houston, Texas, United States; on-site

Salary: $140,000–$175,000 annual base salary, plus equity; final compensation depends on experience, location, and other factors.

Company

hirify.global is a software-first, vertically integrated minerals company developing responsible critical-mineral sourcing and refining technologies for energy, AI, and defense applications.

What you will do

• Lead equipment and process design from concept through procurement, fabrication, installation, commissioning, and startup.
• Operate, troubleshoot, and improve pilot-scale processing equipment with pilot plant technicians.
• Design and execute experiments evaluating process performance, recovery, throughput, and product quality.
• Develop process documentation including PFDs, P&IDs, mass and heat balances, operating procedures, and control narratives.
• Analyze experimental and operational data to optimize processes and support scale-up.
• Collaborate with software and machine learning teams on automated plant monitoring and optimization tools.

Requirements

• Bachelor’s, master’s, or PhD in Chemical Engineering or a related field.
• 10+ years of experience in operations, process scale-up, or plant design in minerals processing, chemicals, specialty materials, oil and gas, or related industries.
• Experience driving equipment design, commissioning, and plant operation.
• Understanding of unit operations and equipment such as kilns, furnaces, ion exchange, solvent extraction, solid-liquid separation, leaching, and electrowinning.
• Ability to design experiments, troubleshoot complex processes, and analyze operational datasets.
• Strong commitment to health, safety, and environmental compliance, along with technical writing, communication, and teamwork skills.

Culture & Benefits

• Full-time, hands-on role bridging R&D, pilot operations, and commercial production.
• Work in a fast-paced environment with broad responsibilities and ambiguity.
• Values include extreme ownership, simplifying and automating processes, and open knowledge sharing.
• Equity is offered in addition to the base salary.