CNC Maintenance Engineer

Jobot; Santa Ana (CA); On-site; USD 100,000 - 145,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) matching

Generous PTO

Paid holidays

Onsite role

Hands-on CNC work

Job summary

Jobot, a growing aerospace and defense manufacturer in Santa Ana, CA, is seeking a Senior Maintenance Technician to oversee CNC and PLC-driven equipment on the shop floor.

You will troubleshoot, repair, and prevent downtime by diagnosing faults across Siemens, Fanuc, and Allen-Bradley controls, performing preventive maintenance, and guiding colleagues with root-cause analyses and CMMS documentation.

Qualifications

• Industrial maintenance experience with CNC and PLC controls.
• Ability to read electrical, pneumatic, and hydraulic schematics.
• Experience with root-cause analysis and preventive maintenance.

Responsibilities

• Troubleshoot, repair, and maintain CNC and PLC-controlled equipment on the production floor.
• Diagnose faults on Siemens, Fanuc, and Allen-Bradley controls with meters/oscilloscopes.
• Interpret schematics and control diagrams to guide repairs.
• Lead root cause analysis and implement corrective actions.
• Perform preventive and predictive maintenance on critical equipment.
• Document repairs in CMMS and train technicians on improved methods.

Skills

CNC controls

PLC controls

Electrical troubleshooting

Read schematics

Preventive maintenance

Education

Associate's degree in Electronics/Mechatronics or related field

Tools

Fanuc CNC

Siemens PLC

Allen-Bradley PLC

Job description

Senior Maintenance Technician — CNC & PLC Controls — $45 to $55/hr + Overtime — Santa Ana, CA — Growing Aerospace and Defense Manufacturing Company

Salary: $100,000 - $145,000 per year

A bit about us

We are a Aerospace Manufacturing Company running a precision CNC manufacturing operation supporting Aerospace and Defense Customers. Our floor runs a mix of Mori Seiki, Makino, Cincinnati Milacron, OKK, SNK, and Kuraki machines, and our maintenance team is central to keeping production-critical equipment running.

Why join us

• $45–$55+/hr depending on experience, plus overtime
• Medical, dental, vision, matching 401(k)
• Generous PTO, sick leave, and paid holidays
• Onsite role supporting production-critical equipment
• Hands-on work across a wide range of CNC platforms and controllers, not just one machine line

Job Details

• You’ll own troubleshooting, repair, and maintenance of CNC and PLC-controlled equipment across a precision machining floor, working closely with engineering, quality, and production to minimize downtime.
• Diagnose and repair faults on Siemens, Fanuc, and Allen-Bradley controls, including board-level diagnostics with multimeters and oscilloscopes
• Interpret electrical, pneumatic, and hydraulic schematics, ladder logic, and control diagrams
• Lead root cause analysis and corrective actions on recurring equipment failures
• Run preventive and predictive maintenance on critical manufacturing equipment
• Document repairs and modifications in the CMMS and help train other technicians on improved methods

Looking for

• Industrial maintenance experience with CNC and PLC controls focus
• Technical diploma or associate's degree in Electronics, Industrial Maintenance, Mechatronics, or related field, or equivalent experience; Fanuc or Siemens certification a plus
• Senior-level technician; able to work overtime as required

Experience in any of the following areas welcomed

• Fanuc and Siemens certification
• Mori Seiki, Makino, Cincinnati Milacron, OKK, SNK, or Kuraki machine training
• Rebuilding and repairing NC machinery
• Aerospace quality systems (AS9100)
• OSHA / EHS compliance in a manufacturing environment

Jobot is an Equal Opportunity Employer. We provide an inclusive work environment that celebrates diversity and all qualified candidates receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, age (40 and over), disability, military status, genetic information or any other basis protected by applicable federal, state, or local laws. Jobot also prohibits harassment of applicants or employees based on any of these protected categories. It is Jobot’s policy to comply with all applicable federal, state and local laws respecting consideration of unemployment status in making hiring decisions.

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