Maintenance Technician — Plant Reliability & Repairs

Mariana Minerals; Joaquin (TX); On-site; USD 60,000 - 90,000; Full time

Job summary

Mariana Minerals is seeking a Maintenance Technician to support day-to-day upkeep, troubleshooting, and repair of process and utility equipment at our East Texas Lithium One facility. You’ll perform routine maintenance, respond to breakdowns, and support reliability initiatives in line with specs and SOPs.

The role requires hands-on work across plant areas, reading blueprints and manuals, and ensuring safe, efficient operations. Flexible hours and teamwork across shifts are expected.

Qualifications

• Minimum 3-5 years industrial maintenance experience in chemical processing, water treatment, mining, or manufacturing.
• Working knowledge of mechanical, electrical, and basic instrumentation systems.
• Experience troubleshooting and repairing pumps, motors, valves, and other rotating and process equipment.
• Ability to read and interpret blueprints, schematic drawings, P&IDs, and equipment manuals to determine work procedures.
• Experience using industrial hand tools and power tools.
• Basic understanding of lubrication practices and preventive maintenance principles.
• Strong attention to detail with solid mathematical and problem-solving skills.
• Troubleshooting skills, with the ability to follow a problem to its source and resolve it.
• Basic understanding of equipment rigging for lifting and positioning equipment.

Responsibilities

• Perform routine preventive and predictive maintenance on plant mechanical, electrical, and instrumentation equipment.
• Troubleshoot and repair pumps, motors, valves, conveyors, blowers, compressors, and other rotating and fixed equipment.
• Respond promptly to equipment breakdowns and unplanned downtime events, diagnosing root cause and implementing timely repairs.
• Perform basic electrical troubleshooting, including motor starters, control circuits, and instrumentation loops.
• Read and interpret work orders, blueprints, P&IDs, schematics, and equipment manuals to guide maintenance activities.
• Complete work orders and maintain accurate maintenance records, including parts used, time spent, and equipment condition.
• Assist in identifying and implementing cost reduction ideas to reduce plant maintenance expenditures.
• Support calibration, lubrication, and inspection programs across the facility.
• Inspect and replace worn or defective parts using appropriate hand tools, power tools, and precision measuring instruments.
• Support start-up, shutdown, and change-out activities for process and utility equipment.
• Maintain a clean, organized, and safe work area, including routine and non-routine housekeeping duties.
• Research and requisition parts and materials needed for repairs and maintenance activities.
• Participate in and support the continuous improvement of the plant’s reliability and maintenance programs.
• Follow all lockout/tagout, confined space, and other safety procedures during maintenance activities.

Skills

Industrial maintenance

Mechanical systems

Electrical systems

Instrumentation

Pumps & motors

Reading blueprints

Safety procedures

Tools

Microsoft Office

Skype

Visio

SharePoint

SAP

Microsoft Project

Job description

Mariana Minerals is seeking a Maintenance Technician to support day-to-day upkeep, troubleshooting, and repair of process and utility equipment at our East Texas Lithium One facility. You’ll perform routine maintenance, respond to breakdowns, and support reliability initiatives in line with specs and SOPs.

The role requires hands-on work across plant areas, reading blueprints and manuals, and ensuring safe, efficient operations. Flexible hours and teamwork across shifts are expected.