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Maintenance Technician

Mariana Minerals· Plant Operations
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East TexasFull-timePosted 1w ago

About the role

Maintenance Technician, Mechanical responsible for preventive and corrective maintenance on process and utility equipment at Lithium One in Joaquin, TX, helping to build and optimize the maintenance program from the ground up with potential electrical/instrumentation duties during initial months.

Responsibilities

  • Perform preventive, predictive, and corrective maintenance on pumps, motors, valves, conveyors, blowers, compressors, and other rotating and process equipment
  • Troubleshoot and diagnose planned and unplanned equipment issues across the Lithium One plant, finding the root cause and making timely repairs
  • Keep production steady by minimizing downtime and completing work to manufacturer specifications and quality standards
  • Perform and document accurate inspections, calibration, and lubrication on process and utility equipment, and recommend equipment for inclusion in preventive maintenance programs
  • Read P&IDs, schematics, and blueprints, requisition parts and materials, and log work, parts used, and equipment condition in our in-house CMMS
  • Work with operations, engineering, and the electrical and controls techs to support start-up, shutdown, and change-out activities, and communicate potential hazards to engineers, electricians, and operators
  • Follow all OSHA and company safety procedures (including lockout/tagout, confined space, and traffic rules), actively participate in safety meetings, and immediately report hazards, near misses, or equipment damage while ensuring operations meet environmental and regulatory standards

Qualifications

  • Technical or trade school training in industrial maintenance or mechanical technology preferred (or equivalent experience)
  • Proven industrial maintenance experience, 3+ years
  • Hands-on experience with piping and with pump, motor, and valve rebuild and repair on rotating and process equipment
  • Experience in an oil & gas, water treatment, chemical processing, or similar industrial setting (oil & gas highly preferred; hydrometallurgy, mining, or battery materials experience is a plus)
  • Working knowledge of electrical and basic instrumentation systems, including motor starters and control circuits
  • Ability to read P&IDs, schematics, blueprints, and equipment manuals
  • Strong mechanical aptitude, with comfort using hand tools, power tools, precision measuring instruments, and basic rigging
  • Strong communication across shifts and good computer skills; CMMS experience preferred
  • Valid driver's license
Last updated Oct 14, 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
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