Maintenance Technician

About the Role

We’re looking for a highly skilled Maintenance Technician II to join our team in Ontario, CA! In this hands-on role, you’ll play a critical part in keeping our advanced CNC machinery and facility systems running at peak performance.

If you enjoy solving complex technical challenges, working with cutting-edge equipment, and making a direct impact on production uptime and quality this is the opportunity for you.

• Training Period: 5:00 AM – 1:30 PM (for a few weeks/months doe)
• Permanent Shift: Swing (4:30 PM – 1:00 AM)

What You’ll Do

Production Equipment Maintenance & Repair

• Diagnose, troubleshoot, repair, and optimize CNC machines (mills, lathes, 3- and 5-axis equipment such as Mitsubishi, Mori-Seiki, Okuma).
• Perform hands-on repairs across mechanical, electrical, hydraulic, pneumatic, and servo/drive systems.
• Conduct alignment, calibration, spindle checks, and machine leveling to ensure precision output.

Preventive Maintenance Leadership

• Lead and execute preventive maintenance programs to maximize equipment uptime.
• Perform routine inspections including lubrication, linear guide checks, coolant systems, and machine condition monitoring.

Equipment & Facility Support

• Maintain and repair facility systems including:
• • Electrical wiring, motor starters, PLC I/O
  • Plumbing, pumps, cranes, compressed air systems
  • Conveyors and material handling equipment
• Support machine installations, relocations, rebuilds, and upgrades.

Troubleshooting & Continuous Improvement

• Lead root cause analysis for recurring equipment issues and implement long-term solutions.
• Partner with production, quality, and engineering teams to improve processes and reduce downtime.

Safety First

• Follow and enforce lockout/tagout (LOTO) procedures and all safety protocols.
• Participate in job safety analyses, toolbox talks, and ensure safe use of equipment (forklifts, lifts, etc.).

What You Bring

• 5–7 years of hands-on maintenance experience in aerospace, defense, or manufacturing environments.
• Strong expertise in CNC diagnostics and repair (mechanical, electrical, servo systems, spindles, axes).
• 5 years of electrical and mechanical experience with solid understanding of industry best practices.
• Experience working with facility systems (electrical, plumbing, pumps, cranes, compressed air).
• Proven ability to troubleshoot and resolve complex technical problems independently.
• Experience (or willingness to certify) in operating:
• • Forklifts
  • Boom lifts
  • Scissor lifts

Education

• High School Diploma or GED required
• Technical certification or AA degree in Electronics, CNC Repair, or related field preferred

Work Environment & Physical Requirements

• 90% shop floor / 10% office environment
• Ability to stand for extended periods and lift up to 50 lbs
• Comfortable working at heights and in an industrial setting
• Frequent bending, stooping, and use of tools requiring manual dexterity
• PPE required (safety shoes, glasses, gloves, etc.)