Industrial Controls Technician — PLC & Automation

Mariana Minerals; Joaquin (TX); On-site; USD 65,000 - 95,000; Full time

Job summary

Mariana Minerals is seeking a Controls Technician to provide electrical and controls support for refinery operations. The role involves troubleshooting, testing, and maintaining electrical systems up to 480V, three-phase & single-phase AC circuits, transformers, switchgear, and motor control centers.

The technician will execute preventive maintenance, upgrade electronic control systems, and ensure compliance with safety codes.

Qualifications

• 3–5 years of manufacturing maintenance experience focused on controls and electronics.
• Proficiency with Allen Bradley PLCs, VFDs, HMIs, and industrial networks.
• Basic PLC knowledge and ability to use PLC software.
• Ability to read wiring schematics, one-line diagrams, and blueprints.
• Experience with SLC 500, ControlLogix, PanelView Plus, and VFDs.
• Strong safety awareness and compliance with electrical codes.

Responsibilities

• Read blueprints and diagrams to install outlets, circuits, and control equipment.
• Test electrical connections after installation to ensure safe operation.
• Troubleshoot and diagnose electrical and control issues in industrial equipment.
• Perform preventive maintenance on electrical and control systems.
• Maintain MCCs, switchgear, robots, transformers, and generators.
• Update CMMS with maintenance records and job reports.
• Collaborate with operators and engineers to address hazards.

Skills

Allen Bradley PLCs

VFDs

HMIs

Industrial Networks

Job description

Mariana Minerals is seeking a Controls Technician to provide electrical and controls support for refinery operations. The role involves troubleshooting, testing, and maintaining electrical systems up to 480V, three-phase & single-phase AC circuits, transformers, switchgear, and motor control centers.

The technician will execute preventive maintenance, upgrade electronic control systems, and ensure compliance with safety codes.