Maintenance Electrician-Mobile Equipment

About Mesabi Metallics

When you join the team at Mesabi Metallics, you become part of a pioneering group advancing sustainable mining practices and driving innovation in the iron ore industry. Our commitment extends to providing a safe work environment, supporting environmental stewardship and generating value for all stakeholders. You will be joining us at a pivotal moment in Minnesota’s mining history:
Mesabi Metallics’ cutting‑edge iron ore mining and pelletization project is currently under construction. Once completed, it will mark the first new mine and pellet plant in Minnesota in nearly 50 years.

More importantly, you'll be immersed in a positive, supportive work environment that values your contributions and fosters your professional growth. Our culture is shaped by our core values which are sustainability, integrity, inclusivity, innovation, teamwork, determination and performance, and our employees are empowered to make a difference every day.

At Mesabi Metallics, you are part of a legacy of excellence, playing a key role in shaping the future of global infrastructure and industry.

The Maintenance Electrician – Mobile Equipment plays a critical role in maintaining maximum availability and reliability of Mesabi Metallics' world‑class mobile mining fleet. This role is responsible for the diagnosis, repair, preventive maintenance, and overhaul of all electrical systems on heavy mobile mining equipment, including ultra‑class 400‑ton Komatsu autonomous haul trucks, the electric rope shovel operating at 7,200 volts, electric drills, and support vehicles.

The successful candidate will bring deep expertise in high‑voltage DC and AC electric drive systems, autonomous vehicle technology interfaces, and industrial electrical systems in a demanding open‑pit mine environment.

Reporting to the Maintenance Shift Supervisor - Mine, the Maintenance Electrician – Mobile Equipment will be responsible for the following:

• Diagnose, troubleshoot, and repair electrical faults on mobile mining equipment including Komatsu 930E-5 400‑ton haul trucks, P&H 2800
  
  XPB electric rope shovel, and related mobile fleet.
• Maintain, repair, and overhaul AC/DC electric drive systems, electric wheel motors, alternators, traction motors, and associated control systems on ultra‑class haul trucks.
• Perform electrical maintenance on the 7,200V electric rope shovel systems including high‑voltage trailing cables, transformer connections, and power distribution components.
• Inspect, test, and replace electrical components such as contractors, relays, circuit breakers, inverters, rectifiers, and motor control centers.
• Troubleshoot and repair programmable logic controllers (PLCs), variable frequency drives (VFDs), and onboard machine control systems.

• Support maintenance and troubleshooting of the Komatsu Front Runner Autonomous Haulage System (AHS) onboard electronics, sensors, radar systems, and communication interfaces.
• Collaborate with OEM technicians and automation engineers on software updates, calibration, and diagnostic procedures for autonomous truck systems.
• Maintain GPS, proximity detection, collision avoidance, and machine monitoring systems on mobile equipment.

• Execute scheduled preventive maintenance (PM) on all electrical systems per OEM specifications and the site's computerized maintenance management system (CMMS).
• Conduct predictive maintenance activities including thermographic inspections, vibration analysis, and oil sampling to identify potential failures before they occur.
• Accurately record all maintenance activities, parts used, and equipment conditions in the CMMS (SAP or equivalent).
• Participate in Root Cause Analysis (RCA) for repetitive or significant electrical failures.

• Strictly adhere to all site safety standards, MSHA regulations (30 CFR), NFPA 70E electrical safety requirements, and Mesabi Metallics safety policies at all times.
• Maintain and enforce Lockout/Tagout (LOTO) procedures on all high‑voltage and high‑energy equipment.
• Participate in pre‑shift safety…