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Job Description

Overview

The Senior Plant Technician is a highly skilled individual contributor responsible for troubleshooting, tearing down, and rebuilding all equipment on-site. This role involves using advanced tools, welding, and cutting to maintain and repair plant machinery, playing a critical role in ensuring site reliability and operational efficiency.

Responsibilities

  • Conduct pre-shift and post-shift equipment inspections, lubricate moving parts, and complete scheduled preventative maintenance tasks.
  • Troubleshoot and replace basic mechanical components, including conveyor belts, idlers, pulleys, and water pumps.
  • Perform structural repairs, hard facing, and replace heavy wear-parts using welding, cutting, and grinding equipment.
  • Rebuild and fabricate parts.
  • Order parts from approved vendors and drive Company pick-up/repair truck to pick up parts.
  • Adhere to MSHA and OSHA regulations, execute Lockout/Tagout protocols, and maintain a hazard-free work area.
  • Observe aggregate crushing, washing, and screening areas during operation to identify anomalies and perform minor adjustments.
  • Record and maintain service logs, lubrication reports, and maintenance records for plant equipment.
  • Assist in the maintenance and repair of mobile equipment.
  • Perform other duties as directed by supervisor.

Requirements

  • Two-year technical degree or accredited apprenticeship program or the equivalent in a technical field is preferred.
  • High School diploma or GED equivalent required.
  • Minimum of 5 plus years of experience in operations, preferably within the aggregate industry.
  • Strong mechanical aptitude with hands-on experience in welding (stick, flux-core), cutting torches, and using power/hand tools.
  • Familiarity with heavy equipment commonly found in quarries.
  • Understanding of plant operations, processes, and performance goals.
  • Knowledge of inspection procedures for critical areas of the site.
  • Knowledge of routine maintenance tasks and troubleshooting techniques.
  • Understanding of larger maintenance tasks and repair processes.
  • MSHA Certified or willingness to complete required MSHA training.
  • An active valid driver's license.
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How this job compares in El Mirage, AZ

Pay in context

At roughly $38/hr, this posting sits about 25% above the $30/hr median for welding jobs across Arizona — toward the top of a $24–$35/hr middle band drawn from 96 postings with published pay. Put another way, it pays more than about 81% of the comparable postings we have wage data for. Pay that far above local median usually comes attached to something: a harder cert requirement, travel, night shift, or overtime that isn't really optional. Worth establishing which before you accept.

The local market in El Mirage, AZ

El Mirage, AZ currently has 7 other active welding openings besides this one, spread across 7 employers. None of them were added in the last week, so this is a slower-moving market. Across Arizona as a whole we're tracking 285 other active welding openings from 175 employers. That's enough local activity to be worth comparing two or three offers before committing. Browse every welding job in El Mirage, or widen the search to Arizona.

Vulcan Materials Company currently has 3 other openings live in Arizona, which is usually a sign of either steady growth or steady turnover — worth asking which in the interview.

The most active employers in Arizona at the moment, by number of open welding reqs, are Welding Shop in Phoenix, AZ (9), Sundt Construction (8), and Comfort Systems USA Southwest (7). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.

Within Arizona, the best-paying metros we track by median hourly rate are Mesa at $38/hr, Phoenix at $30/hr, and Tucson at $30/hr. If you can relocate or commute, that spread is worth factoring in.

What you'll be running

This posting calls for Flux-Core. Flux-cored (FCAW) runs a hollow wire filled with flux, combining MIG-like deposition rates with the outdoor tolerance of stick. It is the workhorse on heavy structural steel and shipbuilding, where thick sections and long welds reward speed.

Similar openings near El Mirage, AZ

Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Plant Maintenance Tech - Senior figures were last recalculated when this page was built.