Mechanical Maintenance Technician - Lithium Plant

Mariana Minerals; Texas; On-site; USD 52,000 - 78,000; Full time

Job summary

Mariana Minerals is seeking a Maintenance Technician, Mechanical to support the Lithium One plant in Joaquin, TX. You’ll perform preventive and corrective maintenance on pumps, motors, valves, and other rotating equipment, helping reduce downtime and improve reliability.

Ideal candidates have 3+ years in industrial maintenance, hands-on experience with pumps, piping, motors, and valves, and familiarity with P&IDs. The role requires strong mechanical aptitude, tools, and safety discipline.

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

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

Skills

Industrial maintenance

Piping experience

Pump repair

Motor repair

Valve repair

Reading P&IDs

Electrical knowledge

CMMS experience

Driver's license

Education

Technical/trade school

Tools

CMMS

Job description

Mariana Minerals is seeking a Maintenance Technician, Mechanical to support the Lithium One plant in Joaquin, TX. You’ll perform preventive and corrective maintenance on pumps, motors, valves, and other rotating equipment, helping reduce downtime and improve reliability.

Ideal candidates have 3+ years in industrial maintenance, hands-on experience with pumps, piping, motors, and valves, and familiarity with P&IDs. The role requires strong mechanical aptitude, tools, and safety discipline.