Industrial Controls Technician — PLC & Electrical Maintenance

Mariana Minerals; East Texas (PA); On-site; USD 65,000 - 90,000; Full time

Job summary

Mariana Minerals is seeking a Controls Technician to provide electrical and controls support at our East Texas refinery. You will troubleshoot and repair electrical wiring, program Allen Bradley PLCs, and maintain control systems across 480V circuits and switchgear.

The role emphasizes PM planning, CMMS data entry, and cross-functional collaboration. Ideal candidates bring 3+ years in industrial maintenance focused on controls, strong knowledge of electrical power distribution, and the ability

Qualifications

• 3+ years of industrial or manufacturing maintenance experience focused on controls and electronics.
• Proficiency with Allen Bradley controls equipment (SLC 500, ControlLogix, PanelView Plus, VFDs), HMIs, and industrial networks, along with the PLC software that supports them.
• Able to own controls projects from start to finish.
• Hands-on experience with 480V three-phase and single-phase AC circuits, transformers, switchgear, and motor control centers, plus strong knowledge of electrical power and distribution systems.
• Ability to read one-line diagrams, blueprints, schematics, and manufacturer specifications, and to calculate circuit load requirements.
• Well-rounded maintenance background, including hydraulics, pneumatics, and machine tools.
• Skilled with hand and power tools and electrical test and measurement equipment.

Responsibilities

• Troubleshoot and diagnose electrical and controls issues across industrial equipment and processes, using system knowledge and the right instruments for the voltages and currents involved.
• Install, test, and maintain electrical equipment, including motor control centers, switchgear, transformers, generators, circuits, and load centers, working from blueprints and one-line diagrams.
• Maintain, program, and upgrade control systems, including Allen Bradley PLCs, VFDs, HMIs, and industrial networks.
• Perform preventive maintenance on electrical and control systems, including disassembly, cleaning, reassembly, and calibration, and recommend equipment for inclusion in PM programs.
• Execute the maintenance schedule, scope each job and determine the best approach, and log work and asset history accurately in our CMMS.
• Work closely with operations, engineering, mechanics, and the maintenance crew; flag potential electrical hazards and suggest improvements to planning, scheduling, PM, and storeroom processes.
• Follow all OSHA and company safety procedures and local, state, and national electrical codes; keep the shop safe and organized and protect product quality at all times.

Skills

Industrial maintenance

Controls and electronics

Reading blueprints/schematics

Troubleshooting/repair

Safety compliance

Tools

Allen Bradley PLCs

HMI programming

Industrial networks

Job description

Mariana Minerals is seeking a Controls Technician to provide electrical and controls support at our East Texas refinery. You will troubleshoot and repair electrical wiring, program Allen Bradley PLCs, and maintain control systems across 480V circuits and switchgear.

The role emphasizes PM planning, CMMS data entry, and cross-functional collaboration. Ideal candidates bring 3+ years in industrial maintenance focused on controls, strong knowledge of electrical power distribution, and the ability