Maintenance Technician – Electrical & Controls

Joaquin, TXfull time

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On Site

mid

H1B: no

Marianaminerals Maintenance Technician – Electrical & Controls at Mariana Minerals installs, tests, maintains, and repairs electrical and controls equipment at a lithium refinery. The role involves troubleshooting PLCs, VFDs, relays, and instrumentation to ensure safe and reliable operations.

Responsibilities

Install, maintain, repair, and test electrical and controls equipment, including medium and low voltage motors, 480V three-phase and single-phase circuits, transformers, switchgear, breakers, generators, load centers, and motor control centers
Troubleshoot and diagnose issues with PLCs, VFDs, HMIs, relay systems, instrumentation, and industrial networks during both planned maintenance and unplanned breakdowns, find the root cause, and make timely repairs
Maintain, program, and upgrade control systems, including Allen Bradley PLCs, and own controls projects from start to finish
Perform and document preventive maintenance, inspections, and calibration on electrical, controls, and instrumentation equipment, and recommend equipment for inclusion in PM programs
Read one-line diagrams, blueprints, and schematics, calculate circuit load requirements, and log work, parts used, and asset history accurately in our in-house CMMS
Work closely with operations, engineering, mechanics, and the maintenance crew; support pump, motor, valve, and piping repairs; flag potential hazards; and suggest improvements to planning, scheduling, PM, and storeroom processes
Follow all OSHA and company safety procedures (including lockout/tagout, confined space, and traffic rules) and local, state, and national electrical codes; participate in safety meetings and report hazards, near misses, or equipment damage right away

Qualification

Associate’s degree in electricalAbility to read one-line diagramsWell-rounded mechanical aptitudeExperience in oil & gasValid driver’s license12-hour shifts

Required

3+ years of industrial or manufacturing maintenance experience with a focus on electrical and controls
Associate’s degree in electrical, electronics, or instrumentation preferred, or equivalent experience
Hands-on experience with 480V three-phase and single-phase AC circuits, motors, transformers, switchgear, breakers, MCCs, relay systems, and instrumentation, plus solid knowledge of electrical power and distribution systems
Ability to read one-line diagrams, blueprints, schematics, and manufacturer specs, and to calculate circuit load requirements
Well-rounded mechanical aptitude, including hydraulics, pneumatics, pumps, valves, and piping
Skilled with hand and power tools and electrical test and measurement equipment
Able to walk through how you approach planned vs. unplanned maintenance, including how you troubleshoot when equipment fails unexpectedly
Experience in oil & gas, water treatment, chemical processing, or a similar industrial setting; hydrometallurgy, mining, or battery materials experience is a plus
Strong communication across shifts and good computer skills; CMMS experience preferred
Valid driver’s license
12-hour shifts, 6 AM–6 PM
Sunday–Tuesday plus every other Wednesday, or Thursday–Saturday plus every other Wednesday

Company

Marianaminerals

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Source: ashby

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Maintenance Technician – Electrical & Controls at Marianaminerals · LumiJobs