# Staff Mechanical Engineer

**Company:** [Mariana Minerals](https://hotfix.jobs/companies/mariana-minerals)
**Location:** Houston, TX
**Role:** Hardware Engineering
**Salary:** $140k – $175k/yr
**Experience:** 9+ years
**Skills:** mechanical engineering, CAD, pumps, piping systems, reactors, filtration systems, material handling, furnaces, pressure vessels, valves, process scale-up, plant design, commissioning
**Posted:** 2026-07-29

> Lead the design, integration, and deployment of pilot-scale mechanical systems and processing equipment for a minerals refining pilot plant in Houston. Requires 9+ years experience in mechanical design, commissioning, and operations within minerals processing, chemicals, or oil & gas.

## Job Description

## 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.

## Requirements
- 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.

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