Mobile Maintenance-Master (East Tennessee Mines)

Nyrstar Group; Strawberry Plains (TN); On-site; USD 55,000 - 75,000; Full time

Benefits offered by this job

Benefits start day 1

Comprehensive health/vision/dental/ret

Retirement plan

Employee Assistance program

Employee discounts

Job summary

Crucible ETN is seeking a Mobile Maintenance-Master for East Tennessee Mines to oversee maintenance of underground mining equipment and uphold MSHA safety standards. The role requires strong leadership, a safety-first mindset, and the ability to diagnose complex diesel, hydraulic, and electrical systems.

Responsibilities include preventative maintenance, root-cause analysis, and leading component repowers, with a focus on keeping equipment operational and safe in an demanding underground mining

Qualifications

• 5 years heavy equipment mechanical experience.
• Strong safety discipline and MSHA compliance.

Responsibilities

• Adhere to all MSHA regulatory and company standards.
• Must have a Safety-First mindset; leading the way to a safe work environment.
• Promote and assist in maintaining a positive work culture.
• Demonstrate strong leadership qualities.
• Troubleshoot, diagnose, and repair underground mobile mining equipment (LHDs, haul trucks, bolters, scalers, drills, and utility vehicles).
• Inspect, service, and maintain diesel engines, hydraulic systems, braking, drivetrain, and electrical CAN-bus systems.
• Conduct preventative and predictive maintenance to minimize downtime and extend component life.
• Identify root causes of recurring equipment failures and implement corrective actions.
• Interpret schematics, service manuals, diagnostic software, and monitoring systems.
• Lead major component repowers including engines, transmissions, axles, pumps, and cylinders.

Skills

Heavy Equipment Experience

Job description

Mobile Maintenance-Master (East Tennessee Mines)

Crucible ETN is a growth-oriented metals manufacturing company focused on producing high-quality zinc products through safe, efficient, and environmentally responsible processes. We are committed to operational excellence, continuous improvement, and responsible stewardship of our people and resources. Our team-driven culture emphasizes safety, integrity, and collaboration while investing in innovation and employee development. At Crucible ETN, employees play a vital role in supporting reliable operations and delivering value to our customers and communities.

Key Accountabilities

• Adhere to all MSHA regulatory and company standards
• Must have a Safety-First mindset; leading the way to a safe work environment
• Promote andassistinmaintaininga positive work culture
• Demonstrate strong leadership qualities
• Perform advanced troubleshooting, diagnostics, and repairs on underground mobile mining equipment such as loaders (LHDs), haul trucks, bolters, scalers, drills, and utility vehicles.
• Inspect, service, andmaintaindiesel engines, hydraulic systems, braking systems, drivetrain components, and electrical systems including CAN-bus controls.
• Conduct preventative and predictive maintenance to minimize equipment downtime and extendcomponentlife.
• Identifyroot causes of recurring equipment failures and implement corrective actions.
• Interpret schematics, service manuals, diagnostic software, and onboarding monitoring systems.
• Lead majorcomponentrepowers including engines, transmissions, axles, pumps, and cylinders.

Qualifications

• 5 yearsHeavy Equipment Mechanical Experience

Additional Information

Benefits start on day 1

Comprehensive benefits package including health, vision, dental, and retirement plan

Access to Employee Assistance program

Employee discounts for local attractions

Monthly company performance bonus (As earned based on company hourly bonus program. This is not a guaranteedbonus.)

Department: Internal & External
This is a non-management position
This is a full time position

Other Information

• Can you show proof of your legal right to work in the United States?
• Can you pass a mandatory drug test?
• Have you ever worked for us before?
• How did you hear about this position?
• What shifts (days,hours,etc) can you work?
• Salary desired If internal, by checking this box, you have indicated you have alerted your supervisor of your application for this role.