Joblaze summary

The Controls Technician at Mariana Minerals is responsible for troubleshooting and maintaining electrical and control systems to ensure the refinery operates efficiently and safely. Key skills include proficiency with Allen Bradley controls, experience with high-voltage systems, and the ability to read technical diagrams. This role is suited for someone with at least three years of industrial maintenance experience, particularly in controls and electronics, who enjoys problem-solving in a startup environment. The position also offers the chance to influence the maintenance program and collaborate closely with various teams.

Joblaze insights

Listed 3 days ago — first seen on Joblaze October 27, 2026. Last confirmed on Mariana Minerals's careers page October 29, 2026.
PLC appears in 2.3% of 3266 comparable mid other roles in United States; Allen-Bradley appears in 0.1% of 3266 comparable mid other roles in United States.

Quick facts

Is the Controls Technician role remote?: No — this is an on-site role in Joaquin, TX.
How much experience is required?: At least 3 years of relevant experience for this Controls Technician role.
Where is the role based?: Mariana Minerals is hiring for this position in Joaquin, TX.
What's the tech stack?: Joblaze extracted these technologies from the posting: Allen-Bradley, HMI, Industrial Networks, PLC, VFD.
What seniority level is this role?: Mariana Minerals targets mid-level candidates for this position.
Is this full-time or contract?: Full-time for this Controls Technician role at Mariana Minerals.

From the original posting

The Controls Technician provides electrical and controls support to keep our East Texas refinery running safely and reliably. In this role, you'll troubleshoot and repair electrical and controls wiring and programming across production equipment, working with 480V three-phase and single-phase AC circuits, transformers, switchgear, and motor control centers. You'll run tests, isolate problems, and keep our control systems healthy through preventive maintenance and upgrades. Because we're a startup, you'll also have a real hand in shaping how our maintenance program runs, from PM planning to CMMS, so the ideal fit is someone who likes solving problems and improving the way work gets done.

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 & Experience

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

Schedule

12-hour shifts, 6 AM–6 PM
Sunday–Tuesday plus every other Wednesday, or Thursday–Saturday plus every other Wednesday
A night rotation will be added in the near future

Working Environment & Physical Requirements

Work in the processing plant and shop in all weather conditions, including extreme temperatures, with exposure to chemicals and other hazardous materials
Ability to lift a minimum of 50 pounds and to stand, walk, and work in confined or elevated spaces for extended periods
Ability to climb ladders and structures, with the manual dexterity to use hand and power tools

Our culture is built on four principles:

Standard company text repeated across Mariana Minerals's postings is omitted here.

Controls Technician

Our culture is built on four principles:

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