Maintenance Tech III - Night Shift - Tunnel City, WI

Iron Oak Energy Solutions; Wisconsin; On-site; USD 52,000 - 70,000; Full time

Benefits offered by this job

Health benefits

401K with company matching

Vacation + paid holidays

Disability, Life/AD&D, and Long-Term-C

Employee Assistance Program

Job summary

Iron Oak Energy Solutions in Tunnel City, WI is seeking a Night Shift Maintenance Tech III to ensure safe, reliable operation of the plant. You will troubleshoot, repair, and maintain all on-site equipment, support continuous improvement, and uphold stringent safety standards.

The role requires 2–3 years of maintenance experience, electrical troubleshooting skills, welding and fabrication abilities, and the ability to read manuals and blueprints.

Qualifications

• Must wear a respirator and other required PPE.
• Must have and maintain a valid driver’s license.
• 2–3 years of experience preferred.
• Training in industrial electricity & troubleshooting electrical control circuits
• Training in replacing and troubleshooting electrical motors
• Training in welding and metal fabrication
• Training in industrial fluid power and pumping systems
• Training in mechanical drives & power transmission
• Previous experience in mining operations (preferably sand)
• Previous experience in a maintenance role (at least two years)
• Reading manuals, blueprints, and electrical diagrams
• Demonstrated ability to work in a team and deliver targets
• Commitment to safety with risk management experience

Responsibilities

• Perform plant maintenance, troubleshooting, and repairs on all on-site equipment.
• Fabricate new equipment or repair components for plant machinery.
• Cut and weld components as needed.
• Install electrical components and complete wiring work.
• Maintain housekeeping and safety standards in the plant.
• Proactively manage equipment to meet availability and reliability targets.
• Assist in planning maintenance tasks.

Skills

Respirator use

Driver's license

Electrical troubleshooting

Welding & fabrication

Fluid power systems

Mechanical drives

Blueprints reading

Team collaboration

Safety awareness

Job description

Maintenance Tech III - Night Shift - Tunnel City, WI

Job Category: Production

Requisition Number: MAINT001194

• Posted : July 1, 2026
• Full-Time

Locations

Showing 1 location

Tunnel City Plant
Tomah, WI 54660, USA

Description

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.

Iron Oak Energy is looking for a dynamic Night Shift Maintenance Tech III to be based out of the company’s Tunnel City, WI. facility.

The Night Shift Maintenance Tech III is accountable to ensure the safe and productive operation of the plant and must possess aptitude for multiple disciplines and be proficient in the operation of equipment associated with all functional areas within the plant.

Key Accountabilities:

Safety

• Comply with applicable MSHA regulations as outlined in the Code of Federal Regulations (CFR) and procedures applying to the worker or person that are part of a safety and health management system for themine.
• If the worker has information that other persons need to know to fulfill their obligations or duties under the CFR, or to protect themselves from the risk of injury or illness, to give the information to the other persons
• Take any other reasonable and necessary course of action to ensure anyone is not exposed to an unacceptable level of risk
• Work or carry out the worker’s activities in a way that does not expose the worker or someone else to an unacceptable level of risk
• Ensure, to the extent of the responsibilities and duties allocated to the worker or person, that the work and activities under the worker’s control, supervision, or leadership is conducted in a way that does not expose the worker or person or someone else to an unacceptable level of risk
• To the extent of the worker’s or person’s involvement, to participate in and conform to the risk management practices of the operation
• Comply with instructions given for safety and health of persons by a supervisor at the operation
• Work at the operation only if the worker is in a fit condition to carry out the work without affecting the safety and health of others
• Not do anything willfully or recklessly that might adversely affect the safety and health of someone else at the operation

General

• Adhere to site procedures and instructions given by supervisors
• Operate equipment in a safe manner which is most efficient and reduces damage, downtime, and quality issues
• Complete required paperwork in an orderly, accurate, and professional fashion
• Assist with any continuous improvement projects as necessary
• Perform all other duties as needed or assigned

Operations

• Perform plant maintenance, troubleshooting, and repairs associated with all on-site equipment
• Fabricate new equipment or repair components for the plant’s machinery
• Cut/weld components within the plant
• Complete electrical component installations
• Maintain housekeeping in the plant
• Proactively manage equipment to ensure availability and reliability targets are met
• Assist in the planning maintenance tasks

Minimum Qualifications:

• Must be able to wear a respirator and other required personal protective equipment.
• Must have and maintain a valid driver’s license
• 2-3 years of experience preferred.
• Training in industrial electricity & troubleshooting electrical control circuits
• Training in replacing and troubleshooting electrical motors
• Training in welding and metal fabrication
• Training in industrial fluid power and pumping systems
• Training in mechanical drives & power transmission
• Previous experience within mining operations (preferably sand)
• Previous experience in a maintenance role (at least two years)
• Previous exposure to preventative maintenance strategiesMust be able to read manuals, blueprints, and electrical diagrams
• Demonstrated experience contributing to a team of professionals to deliver against set targets
• Demonstrated commitment to safety with previous experience in identifying and managing risks
• Excellent Healthcare Benefits – medical, vision, dental
• 401K with company matching
• Vacation + Paid Holidays
• Disability, Life / AD&D, and Long-Term Care Insurances
• Employee Assistance Program

Iron Oak Energy is committed to fostering diversity and inclusion in our workforce. We provide equal employment opportunities based on work‑related factors without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, or veteran status. We offer competitive salaries, advancement opportunities, and a comprehensive range of benefits.

This job description reflects the principal functions of the role and may not cover all work requirements. Additional tasks may be assigned as needed to meet exceptional conditions.

An Equal Opportunity Employer. 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.