Maintenance Supervisor - Bigfoot Plant - Poteet, TX (Greater San Antonio Area)

Iron Oak Energy; Texas; On-site; USD 70,000 - 110,000; Full time

Benefits offered by this job

Competitive wage

Health, dental, vision insurance

401K retirement plan

Paid holidays

Job summary

Iron Oak Energy Solutions is seeking a Maintenance Supervisor to lead preventive and corrective maintenance for critical equipment at our Bigfoot Plant in Texas. You will coordinate with planning, scheduling, and operations to ensure safe, timely maintenance and reliable equipment performance.

Ideal candidates have 4+ years in mining or heavy industry, a mechanical/manufacturing engineering background, and strong leadership, troubleshooting, and communication skills.

Qualifications

• Bachelor's degree in mechanical or manufacturing engineering or equivalent experience preferred.
• 4+ years of relevant work experience in mining, industrial, or manufacturing environments.
• Experience supervising technical groups is required.
• Ability to read and interpret English-language project reports.

Responsibilities

• Adhere to plant safety and environmental guidelines and participate in safety programs.
• Coordinate maintenance workload with Planner/Scheduler and prioritize tasks.
• Lead repairs and preventive maintenance on heavy industrial equipment at mine site.
• Ensure equipment history, BOM, and refurbishment info are kept up to date in CMMS.
• Communicate effectively with maintenance and production teams to minimize downtime.

Skills

Maintenance planning

Team supervision

Troubleshooting

English language

Computer skills

Driver's license

Education

Bachelor's degree in mechanical or manufacturing engineering

Tools

CMMS knowledge

PMI Scheduling Professional (nice to have)

Job description

Job Details

Posting Details

• Posted on November 2, 2026

Locations

• Bigfoot Plant
  Poteet, TX 78065, USA
• Operations Management
• Full-Time
• Requisition #: MAINT001241

Description

Company Overview

Iron Oak Energy, a leading provider of proppant to the oil and gas industry with a differentiated footprint of low-cost, logistically advantaged mining and terminal assets serving all major U.S. shale basins. Iron Oak Energy Solutions, formed from the strategic combination of Covia Energy and Black Mountain Sand to create a premier frac sand mining company, delivering superior products and solutions to diversified oil and natural gas markets across North America. The combination positions Iron Oak Energy with unmatched scale, reliability, and deliverability to customers in all major oil and gas shale plays.

Position Summary

The Maintenance Supervisor is an important member of the maintenance team that will execute preventive and corrective maintenance tasks for critical equipment getting the support from the planning and scheduling process. This position will be responsible for working with the maintenance and production teams to coordinate maintenance functions and support maintenance planner in the coordination of maintenance jobs. The Maintenance Supervisor is responsible for executing planned maintenance tasks, delivering timely feedback for planning and scheduling, and populating equipment historical information in the computerized maintenance management system (CMMS). This position must demonstrate a pattern of safe behavior, good attendance, good disciplinary record, initiative, effective communication skills, and problem-solving skills.

The Maintenance Supervisor position requires medium to advance-level of mechanical, electrical, and systems troubleshooting knowledge. This position will lead repairs and preventative maintenance activities to heavy industrial machinery/equipment at the mine site working in coordination with the plant mechanical technicians and contractors. This position will be expected to always adhere to all safety regulations and practice safe operations.

Essential Functions

• Adhering to all plant safety and environmental guidelines, policies, and procedures and actively participating in the safety program.
• Perform duties safely and responsibly while always observing all safety and health rules.
• Assist Maintenance Manager in execution of maintenance projects and programs.
• Work closely with Maintenance Planner to prioritize maintenance workload and coordinate preventative and corrective maintenance activities.
• Knowledge of how equipment works, including but not limited to water pumps, baghouses, conveyors (Belt Scale Calibration), Slurry pumps, blowers, dryers, minerals separators, machine repairs, with the ability to troubleshoot and analyze equipment problems.
• Make sure equipment repairs are being done properly and parts are being issued to the work orders, check the status of equipment availability, and work with operation supervisors to coordinate downtime.
• Coordinate work with Planner/Scheduler and follow up on completed jobs/WOs.
• Support planners to keep updated equipment historical information (maintenance performed), equipment bill of material, and information for equipment and parts refurbishment process.
• Work with Warehouse specialist to maintain critical spares for plant equipment.
• Ensure housekeeping standards in the maintenance work areas.
• Assists with any other task required by the management.

Required Knowledge, Skills, and Abilities

• A bachelor’s degree in mechanical or manufacturing engineering is preferred; an equivalent combination of related education, training, and experience will be considered.
• Intermediate to Advance-level maintenance, planning, equipment/process design and manufacturing is required.
• Four (4) plus years of relevant work experience in mining, or industrial or manufacturing environment
• PMI Scheduling Professional certification will be a plus.
• Experience supervising technical groups is required.
• Ability to apply knowledge and experience to a wide variety of situations, recommends solutions to mechanical system problems.
• Ability to speak, read, and have a working knowledge of the English language is required.
• Ability to read and elaborate projects report in English language is required.
• Must have a team player attitude with a high-level of self-motivation requiring minimal supervision.
• Intermediate to advanced computer skills is required.
• Must be able to wear a respirator and other required personal protective equipment.
• Must have and maintain a valid driver’s license

Job Benefits

Iron Oak Energy Solutions offers a comprehensive and competitive compensation package for candidates when they join our team. Benefits enjoyed by members of our team include:

• Competitive wage
• Health, dental, vision and long-term disability insurance following 60-days of employment
• 401(K) retirement savings plans
• Paid holidays and time off

Disclaimers

The above statements are intended to describe the general nature and level of work being performed by candidates applying for the role of Maintenance Supervisor. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications required of candidates hired for Maintenance Supervisor.

Iron Oak Energy is an EEO Employer and E-Verify participating employer and we do not discriminate on the basis of race, religion, national origin, sex, sexual orientation, gender identity, age, physical or mental disability, marital status or veteran status.

Equal Opportunity Employer

This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.