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Staff Mechanical Engineer

Mariana Minerals· Process Development
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Houston, TX$140k - $175k + equityFull-timePosted 2mo ago

About the role

Staff Mechanical Engineer to support pilot-scale mineral processing at Mariana Minerals in Houston, TX. Lead design, integration, and deployment of pilot-scale mechanical systems and processing equipment, ensuring reliability, safety, and scalability to production.

Responsibilities

  • Design, specify, and deploy mechanical systems and equipment for pilot-scale mineral processing operations
  • Work closely with process engineers to translate process requirements into practical mechanical and plant designs
  • Support installation, troubleshooting, and maintenance of pilot plant equipment including pumps, piping systems, reactors, separators, filtration systems, and material handling equipment
  • Develop and maintain mechanical design documentation including equipment specifications, layout drawings, piping schematics, and CAD models
  • Identify opportunities to improve equipment reliability, maintainability, and operational performance
  • Coordinate with vendors, fabricators, and contractors during equipment procurement and installation
  • Support safe plant operations by contributing to hazard reviews, equipment safety design, and mechanical integrity programs

Qualifications

  • B.S., M.S., or PhD in Mechanical Engineering or a related field
  • 9+ years of experience in operations, process scale-up, or plant design in minerals processing, chemicals, specialty materials, oil & gas, or related industries
  • Demonstrated experience driving equipment design, commissioning, operations, and reliability
  • Experience designing and maintaining furnaces, pumps and fluid handling systems, pressure vessels and reactors, piping systems and valves, filtration and separation equipment, and materials handling systems
  • Ability to work closely with cross-functional teams including process engineering, operations, and project execution
  • Strong troubleshooting and problem-solving skills in hands-on plant environments
  • Strong commitment to Health, Safety, and Environmental compliance and mechanical integrity standards
  • Excellent technical writing, communication, and teamwork skills
  • Comfortable working in fast-paced environments, wearing multiple hats, and managing ambiguity

Skills

Required:Mechanical designPumps and fluid handlingSafety and mechanical integrity

Benefits

  • Not specified in the description
Last updated Sep 9, 2026. Interested? Apply on the company site.

About Mariana Minerals

We to the Future of Minerals, verify the mineral supply chain.

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.

software-firstmineralsenergyAIdefense
Company profileWebsite

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