Electrical & Controls Maintenance Tech - PLC & VFD Expert

marianaminerals.com; Joaquin (TX); On-site; USD 34,000 - 55,000; Full time

Job summary

Mariana Minerals is seeking a Maintenance Technician (Electrical & Controls) to keep the electrical, controls, and instrumentation systems at Lithium One refinery in Joaquin, TX running safely and reliably. You’ll install, test, and maintain motors, switchgear, transformers, MCCs, and when something goes down, troubleshoot PLCs, VFDs, relays, and instrumentation to restore production.

This startup-style role offers the opportunity to help build our maintenance program from the ground up, from PM

Qualifications

• 3+ years industrial/manufacturing maintenance experience with electrical/controls focus
• Associate degree in electrical, electronics, or instrumentation preferred, or equivalent experience
• Hands-on experience with 480V three-phase and single-phase circuits, motors, transformers, MCCs, relays, and instrumentation
• Ability to read one-line diagrams, blueprints, schematics, and manufacturer specs
• Strong safety mindset and ability to follow OSHA and company procedures
• Experience in oil & gas, water treatment, chemical processing, or similar industrial setting; hydrometallurgy/mining knowledge a plus
• CMMS experience and good computer skills are preferred
• Valid driver s license

Responsibilities

• Install, maintain, repair, and test electrical and controls equipment including motors, transformers, and MCCs
• Troubleshoot PLCs, VFDs, HMIs, relay systems, instrumentation, and networks
• Maintain, program, and upgrade control systems (Allen Bradley PLCs) from start to finish
• Perform and document preventive maintenance, inspections, and calibration
• Read diagrams, blueprints, and schematics and log work and asset history in CMMS
• Collaborate with operations, engineering, mechanics; support pump, motor, valve, and piping repairs
• Follow all safety procedures and report hazards or equipment damage promptly

Skills

Industrial maintenance

Electrical & controls

Troubleshooting

Safety procedures

Communication

Education

Associate degree in electrical/electronics/instrumentation

Tools

Allen Bradley PLCs

CMMS

Electrical test equipment

MCCs and switchgear

Job description

Mariana Minerals is seeking a Maintenance Technician (Electrical & Controls) to keep the electrical, controls, and instrumentation systems at Lithium One refinery in Joaquin, TX running safely and reliably. You’ll install, test, and maintain motors, switchgear, transformers, MCCs, and when something goes down, troubleshoot PLCs, VFDs, relays, and instrumentation to restore production.

This startup-style role offers the opportunity to help build our maintenance program from the ground up, from PM