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Maintenance Technician

Join Mariana Minerals as a Maintenance Technician to support safe operations and build a maintenance program in a startup environment.

Location
Joaquin, Texas, United States
Compensation
Not disclosed
Level
mid
Type
full time · On-site

Posted by employer 1 day ago

First seen on Joblaze 6 hours ago

Last verified on the company career page 6 hours ago

Apply at Mariana Minerals → Save job Scanned from marianaminerals.com

What you'll build

  • Perform preventive, predictive, and corrective maintenance on equipment
  • Troubleshoot and diagnose equipment issues
  • Minimize downtime and complete work to specifications
  • Document inspections and recommend equipment for maintenance programs
  • Support start-up and shutdown activities

Must have

  • 3+ years of industrial maintenance experience
  • Hands-on experience with pumps, motors, and valves
  • Ability to read P&IDs and schematics
  • Valid driver's license

Nice to have

  • Experience in oil & gas or similar industrial setting
  • Working knowledge of electrical and instrumentation systems

Practical constraints

  • 12-hour shifts
  • Work in extreme temperatures and hazardous materials

Requirements

Experience
3+ years
Education
No formal education required

Not disclosed in this posting: compensation, visa sponsorship.

Joblaze summary

The Maintenance Technician at Mariana Minerals is responsible for performing preventive and corrective maintenance on various mechanical equipment, ensuring smooth operations at the Lithium One facility. This role requires hands-on experience with pumps, motors, and valves, along with a solid understanding of electrical systems and schematics. Ideal candidates will have over three years of industrial maintenance experience, particularly in oil and gas or similar sectors, and should be comfortable with a variety of tasks in a startup environment. The position emphasizes safety and collaboration, reflecting the company's commitment to responsible mineral sourcing.

Joblaze insights

  • Listed today — first seen on Joblaze October 9, 2026. Last confirmed on Mariana Minerals's careers page October 9, 2026.
  • This exact title is also open at 1 other location at Mariana Minerals: East Texas.

Quick facts

Is the Maintenance Technician role remote?
No — this is an on-site role in Joaquin, Texas, United States.
How much experience is required?
At least 3 years of relevant experience for this Maintenance Technician role.
Where is the role based?
Mariana Minerals is hiring for this position in Joaquin, Texas, United States.
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 Maintenance Technician role at Mariana Minerals.

From the original posting

The Maintenance Technician, Mechanical supports safe, reliable operation of our process and utility equipment at Lithium One in Joaquin, TX. In this role, you will perform preventive and corrective maintenance on pumps, motors, valves, conveyors, blowers, compressors, and other rotating equipment, then respond to unplanned breakdowns and trace problems to the root cause. You will play a critical role in keeping production steady and downtime low, and you will have a real hand in building our maintenance program from the ground up, including finding ways to simplify or automate repetitive maintenance tasks. As a startup, the first 6-8 months will include work beyond your mechanical specialty, such as electrical and instrumentation support, so the ideal fit is someone who loves variety and wants to build something.

Responsibilities

  • Perform preventive, predictive, and corrective maintenance on pumps, motors, valves, conveyors, blowers, compressors, and other rotating and process equipment

  • Troubleshoot and diagnose planned and unplanned equipment issues across the Lithium One plant, finding the root cause and making timely repairs

  • Keep production steady by minimizing downtime and completing work to manufacturer specifications and quality standards

  • Perform and document accurate inspections, calibration, and lubrication on process and utility equipment, and recommend equipment for inclusion in preventive maintenance programs

  • Read P&IDs, schematics, and blueprints, requisition parts and materials, and log work, parts used, and equipment condition in our in-house CMMS

  • Work with operations, engineering, and the electrical and controls techs to support start-up, shutdown, and change-out activities, and communicate potential hazards to engineers, electricians, and operators

  • Follow all OSHA and company safety procedures (including lockout/tagout, confined space, and traffic rules), actively participate in safety meetings, and immediately report hazards, near misses, or equipment damage while ensuring operations meet environmental and regulatory standards

Qualifications & Experience

  • Technical or trade school training in industrial maintenance or mechanical technology preferred (or equivalent experience)

  • Proven industrial maintenance experience, 3+ years

  • Hands-on experience with piping and with pump, motor, and valve rebuild and repair on rotating and process equipment

  • Experience in an oil & gas, water treatment, chemical processing, or similar industrial setting (oil & gas highly preferred; hydrometallurgy, mining, or battery materials experience is a plus)

  • Working knowledge of electrical and basic instrumentation systems, including motor starters and control circuits

  • Ability to read P&IDs, schematics, blueprints, and equipment manuals

  • Strong mechanical aptitude, with comfort using hand tools, power tools, precision measuring instruments, and basic rigging

  • Strong communication across shifts and good computer skills; CMMS experience preferred

  • Valid driver's license

Schedule
12-hour shifts (6am-6pm): 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

  • Must wear and use all required PPE

Our culture is built on four principles:

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

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