Maintenance Technician III - Mechanical, Facilities, & CNC/Controls in Crystal Lake

Energy Jobline is the largest and fastest growing global Energy Job Board and Energy Hub. We have an audience reach of over 7 million energy professionals, 400,000+ monthly advertised global energy and engineering jobs, and work with the leading energy companies worldwide.

We focus on the Oil & Gas, Renewables, Engineering, Power, and Nuclear markets as well as emerging technologies in EV, Battery, and Fusion. We are committed to ensuring that we offer the most exciting career opportunities from around the world for our jobseekers.

Job DescriptionJob DescriptionDescription:

Immediate permanent Maintenance Technician III opportunity for a growing manufacturing plant located in Crystal Lake, Illinois. This senior-level position is responsible for advanced troubleshooting, repair, and preventive maintenance of production equipment, CNC/industrial controls, and facility infrastructure. The role combines hands-on technical expertise with leadership responsibilities to ensure maximum equipment uptime, safety, and operational efficiency.

Job Responsibilities

• Diagnose and repair complex mechanical systems, including gearboxes, pumps, conveyors, presses, cranes/hoists, and precision components.
• Overhaul hydraulic and pneumatic systems; fabricate/machine repair parts as required.
• Perform preventive maintenance on forklifts, vehicles, and other plant equipment.
• Troubleshoot, repair, and calibrate CNC machines (Fanuc, Siemens, Haas, Okuma, Mazak, Mitsubishi, etc.).
• Resolve electrical/control issues involving drives, servo motors, encoders, amplifiers, relays, and I/O modules.
• Backup, restore, and adjust machine parameters; assist with CNC program edits.
• Maintain and repair facility systems, including HVAC, lighting, plumbing, electrical panels, and compressed air.
• Perform building and seasonal maintenance, including roof inspections and snow removal coordination.
• Follow Lockout/Tagout (LOTO) procedures; comply with OSHA, NFPA, NEC, and company standards.
• Maintain safety devices and participate in safety initiatives and audits.
• Mentor junior technicians in CNC, PLC, and mechanical troubleshooting.
• Support additional projects across departments when needed.

Requirements:

• High school diploma or equivalent required; technical/trade school .
• 8+ years of industrial maintenance experience, including:
  • 3+ years with CNC machinery and controls (required).
  • 5+ years mechanical repair/troubleshooting (required).
  • Proven facility maintenance background.
• Expertise in mechanical systems, hydraulics, pneumatics, and machining.
• Advanced CNC controls and PLC troubleshooting skills.
• Ability to read and interpret schematics, blueprints, and wiring diagrams.
• Proficient with diagnostic tools (multimeter, oscilloscope, laser alignment, vibration analyzer).
• Must have a valid driver’s license with a clean record.
• Ability to stand, kneel, and bend for extended periods and lift up to 50 lbs.
• Comfortable working in confined spaces, at heights, and in varying temperatures.
• Strong problem-solving and leadership abilities with excellent communication skills.
• Willingness to work rotating shifts (every two weeks), weekend duty (every third week), and overtime as business needs dictate.

Pay: $34.00 to $38.00 hourly. The range provided is a guideline and not a guarantee of compensation. Offer decisions are based on factors including a candidate’s experience, qualifications, geography, and internal equity.

Benefits: This position includes an annual profit-sharing incentive bonus payment. Our benefit programs provide choice and flexibility to meet the needs of you and your family. Benefits include health and well-being coverage, financial planning tools, career development opportunities, paid time off (PTO), and more.

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.