← All roles

Controls Technician

Mariana Minerals· Plant Operations
Apply on company site
Joaquin, TXFull-timePosted 1w ago

About the role

The Controls Technician provides electrical and controls support to keep the East Texas refinery running safely and reliably, troubleshooting and repairing electrical and controls wiring and programming, conducting preventive maintenance, and contributing to the development of the maintenance program (PM/CMMS) in a startup environment.

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

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
  • Hydrometallurgy, mining, or battery materials experience is a plus

Skills

Required:Troubleshooting electrical and controls systemsAllen Bradley PLCs and related softwareElectrical power distributionReading schematics and diagrams
Last updated Oct 21, 2026. Interested? Apply on the company site.

About Mariana Minerals

We to the Future of Minerals, verify the mineral supply chain.

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.

software-firstmineralsenergyAIdefense
Company profileWebsite

More open roles at Mariana Minerals