Mariana Minerals is seeking a highly motivated Staff Mechanical Engineer to support our next-generation minerals processing pilot plant in Houston. You will lead the design, integration, and deployment of pilot-scale mechanical systems and processing equipment used to demonstrate and scale innovative refining technologies for critical minerals. This role is highly hands-on and will play a key role in building and maintaining a first-of-its-kind pilot plant. You will work closely with process engineers, technicians, and cross-functional teams to design, install, commission, and improve pilot-scale equipment while ensuring systems are reliable, safe, and scalable to commercial production.

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

Staff Mechanical Engineer

Responsibilities

Qualification

Required

Preferred

Company

Marianaminerals

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