Assistant Maintenance Manager

Core Natural ResourcesProsperity, PA
Onsite

About The Position

Supports the Maintenance Manager and maintenance leadership in planning, directing, and coordinating mine maintenance activities. The role helps ensure a safe work environment, reliable equipment performance, efficient use of labor and materials, regulatory compliance, controlled maintenance costs, and high equipment availability. The Assistant Master Mechanic provides day-to-day direction to maintenance employees and coordinates closely with operations, safety, engineering, planning, warehouse, and mine management.

Requirements

  • High school diploma or GED.
  • Progressive underground mine maintenance experience involving electrical and/or mechanical equipment.
  • Demonstrated knowledge of underground coal mining operations, maintenance practices, equipment usage, safety requirements, and applicable federal and state mining laws.
  • Prior experience directing work, leading employees, or serving in a maintenance supervisory capacity.
  • Effective verbal and written communication, organization, planning, problem-solving, and interpersonal skills.
  • Basic computer proficiency, including word processing, spreadsheets, and maintenance management or enterprise systems.
  • Ability to work across shifts and respond to urgent maintenance needs, as required by the operation.

Nice To Haves

  • Technical degree in electrical or mechanical technology, or a bachelor’s degree in electrical, mechanical, or mining engineering or a related field.
  • Applicable mine foreman, electrician, fire boss, mine rescue, first aid, or EMT certification.
  • MSHA electrical qualification and applicable state mine electrician certification.
  • Experience with computerized maintenance management systems, reliability-based maintenance programs, industrial controls, programming, or computer networking.
  • Experience supporting continuous improvement, equipment reliability, workforce development, and cost-control initiatives.

Responsibilities

  • Assist in planning and directing preventive, predictive, corrective, and emergency maintenance activities for underground and surface-supported mine equipment, power distribution, and related facilities.
  • Coordinate daily maintenance priorities and work schedules across shifts based on production needs, equipment condition, workforce availability, and safety requirements.
  • Provide day-to-day direction to maintenance employees; assign work, communicate expectations, monitor progress, and help resolve operating or personnel issues.
  • Review shift reports, examination books, equipment logs, work orders, inspection findings, and other records to maintain current awareness of equipment status and follow-up needs.
  • Help maximize equipment availability and minimize downtime by identifying maintenance constraints, coordinating repairs, and developing practical maintenance plans with operations and maintenance leadership.
  • Ensure electrical and mechanical maintenance work is completed in accordance with applicable federal and state laws, company policies, approved procedures, and performance standards.
  • Conduct workplace and equipment inspections; identify unsafe or hazardous conditions and initiate prompt corrective action. Support pre-shift reviews and employee safety meetings as assigned.
  • Develop, communicate, and reinforce safe job procedures. Inspect tools and equipment for safe condition and promote the company’s safety processes and expectations.
  • Coordinate maintenance response when roof conditions, equipment failures, power distribution issues, or other conditions disrupt normal production plans.
  • Assist with maintenance of power distribution systems and related infrastructure, including substations and pumping systems, as applicable to the assigned operation.
  • Recommend equipment repair, replacement, modification, or fabrication solutions based on equipment condition, reliability, safety, operating needs, and cost effectiveness.
  • Coordinate with warehouse and supply personnel on parts availability, requisitions, warranty matters, core recovery, and the procurement and distribution of equipment and supplies.
  • Ensure maintenance work is properly documented and that required maintenance records, maps, logs, and supporting information are retained and accurate.
  • Use the company maintenance management system and standard business applications to monitor work, equipment history, parts, schedules, and completion status.
  • Work with maintenance and mine leadership to identify performance objectives, monitor results, and lead or support continuous improvement and reliability initiatives.
  • Assist with staffing coordination, employee training, skills development, performance feedback, corrective action, conflict resolution, and employee communications in partnership with management and Human Resources.
  • Communicate maintenance schedules, operating changes, equipment status, and company policies and procedures to supervisors and employees.
  • Perform the duties of the Master Mechanic or designated maintenance leader when assigned and qualified.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service