Skip to content
Mariana MineralsMariana MineralsHouston, TX

Staff Mechanical Engineer

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.

140k – 175k/yr
On-site9+ YOEHardware Engineering

About the role

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.

Skills

mechanical engineeringCADpumpspiping systemsreactorsfiltration systemsmaterial handlingfurnacespressure vesselsvalvesprocess scale-upplant designcommissioning
Shield AI

Staff Engineer, Propulsion

Shield AIDallas, TX

Staff Mechanical Design & Analysis Engineer owning propulsion hardware (fuel/oil systems, engine components, mounts, thermal controls) from concept through production. Performs strength, fatigue, vibration, and thermal FEA/hand calculations to validate designs for the V-BAT aircraft.

140k – 210k/yrOn-site7+ YOEHardware Engineering
Shield AI

Staff Engineer, Thermal - Air Vehicle (R4856)

Shield AIDallas, TX +1

Develops thermal systems for VTOL strike aircraft, performing analysis, CFD modeling, trade studies, and testing validation. Requires 7+ years experience in thermal engineering, expertise in heat transfer/fluid mechanics, and proficiency in tools like FloEFD and STAR-CCM+.

140k – 210k/yrOn-site7+ YOEHardware Engineering
Crusoe

Staff Commissioning Engineer, Mechanical

CrusoeAbilene, TX

Leads full lifecycle commissioning of mechanical and controls systems for data centers, overseeing third-party agents, testing from factory to turnover, and ensuring alignment with design and operational standards. Requires 7+ years experience, Mechanical Engineering degree, and deep data center expertise.

140k – 165k/yrOn-site7+ YOEHardware Engineering
Carbon

Staff Electrical Engineer

CarbonSunnyvale, CA

Design and implement electronic systems and PCBAs spanning analog, digital, and power domains. Collaborate cross-functionally to prototype, validate, and transition designs to production. Requires 7+ years of electrical engineering experience and a BS in EE or related field.

138k – 274k/yrHybrid7+ YOEHardware Engineering
Shield AI

Staff Aerostructures Design Engineer

Shield AIDallas, TX +1

Design and develop primary and secondary structural components for next-generation autonomous UAVs from concept through production. Requires 8+ years aircraft structural design experience, CAD proficiency, and knowledge of composites, metals, GD&T, and DFMA in a fast-paced aerospace environment.

137k – 205k/yrOn-site8+ YOEHardware Engineering