Maintenance Technician - Level 3 (Senior / Lead)

Job Description

Position Summary

The Maintenance Technician Level 3 serves as the Senior Technical Lead and Subject Matter Expert (SME) for critical infrastructure and manufacturing automation. This role is responsible for system reliability, advanced diagnostics, root-cause analysis, mentoring junior staff, and leading emergency response for power, cooling, or production-impacting events.

Key Responsibilities

• Electrical Systems (120–480 VAC)
• Troubleshoot and repair electrical distribution systems, breaker panels, motor starters, VFDs, and control circuits.
• Read and interpret single-line diagrams, schematics, and arc-flash boundaries.
• Critical Power Systems
• Oversee PMs, load bank testing, and troubleshooting of generators, ATS systems, UPS systems, and switchgear.
• Respond to alarms and critical events impacting uptime.
• HVAC, Power Generators & Air compressors equipment & Mechanical Systems
• Perform PMs and troubleshoot on air handlers, CRAH/CRAC units, chilled water pumps, industrial chillers, cooling towers, Power generators and Air compressors.
• Diagnose refrigerant cycle issues, perform motor replacements, align pumps, identify and resolve air/liquid leaks and analyze system performance.
• Automation & Controls
• Troubleshoot PLC-controlled automation, I/O faults, servo motors, pneumatics, and sensors.
• Support production line reliability and improvement efforts.
• Predictive Maintenance & Reliability
• Analyze vibration analysis, thermal imaging, and performance data to prevent failures.
• Drive reliability improvements and root-cause corrective actions.
• Leadership & Vendor Management
• Lead complex maintenance projects and mentor Level 1 and Level 2 technicians.
• Manage spare parts, critical asset inventories, and contractor oversight.
• Coordinate major vendor services (chiller overhauls, generator service).

Required Skills & Qualifications

• Expert electrical troubleshooting skills (True RMS meters, amp clamps).
• Advanced mechanical and HVAC knowledge (thermodynamics, hydraulics, pneumatics).
• PLC hardware troubleshooting and logic interpretation.
• Advanced CMMS reporting and planning capabilities.

Certifications (Required/): - EPA Universal Refrigerant Certification (Required) - NFPA 70E / Arc Flash Training (Required) - HVAC Certification (Required)

Experience: 5–7+ years in data centers, industrial manufacturing, or critical environments.

Physical Demands (All Levels)

• Ability to lift up to 50 lbs.
• Ability to climb ladders, stairs, and work at heights.
• Ability to work in hot, cold, and noisy environments.
• Ability to stand, walk, kneel, and reach for extended periods.