Maintenance Technician – Electrical & Controls

Valar Atomics•Hawthorne, CA

4h•$30 - $45•Onsite

About The Position

We are seeking an Electrical & Controls-focused Maintenance Technician. This role emphasizes electrical troubleshooting, CNC controls, PLC systems, and automation, with mechanical work as a secondary function. The technician will be responsible for minimizing downtime, improving machine reliability, and supporting safe, high-performance manufacturing. Troubleshoot and repair electrical and control systems , including CNC controllers, HMIs, PLCs, servo drives, VFDs, and power supplies Diagnose faults in servo motors, encoders, feedback devices, limit switches, safety circuits, and I/O Read and interpret electrical schematics, ladder logic, wiring diagrams, and control panel layouts Perform electrical testing using multimeters, megohmmeters, and diagnostic software Support and troubleshoot CNC control platforms (Fanuc, Siemens, Haas, Mazak, Okuma, or similar) Interface with PLC-based systems (Allen-Bradley, Siemens, or equivalent) for troubleshooting—not programming-heavy, but logic-aware Troubleshoot industrial networks and communication issues (Ethernet/IP, Profinet, RS-232/485, device buses) Perform control cabinet work: wiring, terminations, component replacement, and minor panel modifications Support machine startups, retrofits, electrical upgrades, and commissioning activities Collaborate with engineering and production to identify root cause failures and implement permanent fixes Maintain accurate documentation of repairs, changes, and parts usage in CMMS or maintenance logs Ensure compliance with electrical safety, LOTO, and arc-flash procedures

Requirements

3+ years of experience as a Maintenance Technician or Controls/Electrical Technician in a CNC manufacturing environment
Strong background in industrial electrical systems and automation
Solid understanding of CNC controls and servo systems
Solid understanding of Industrial power distribution (single- and three-phase)
Solid understanding of PLC I/O and control logic fundamentals
Proven ability to troubleshoot electrically driven machine faults under production pressure
Ability to read and work from electrical schematics and control drawings

Nice To Haves

PLC troubleshooting experience (Allen-Bradley Compact/ControlLogix, Siemens S7, or similar)
Experience with safety circuits, safety relays, and CNC safety standards
Familiarity with CMMS systems, preventive maintenance planning, and reliability improvement
Technical degree or formal training in Electrical, Controls, Mechatronics, or Industrial Automation

Responsibilities

Troubleshoot and repair electrical and control systems
Diagnose faults in servo motors, encoders, feedback devices, limit switches, safety circuits, and I/O
Read and interpret electrical schematics, ladder logic, wiring diagrams, and control panel layouts
Perform electrical testing using multimeters, megohmmeters, and diagnostic software
Support and troubleshoot CNC control platforms (Fanuc, Siemens, Haas, Mazak, Okuma, or similar)
Interface with PLC-based systems (Allen-Bradley, Siemens, or equivalent) for troubleshooting
Troubleshoot industrial networks and communication issues (Ethernet/IP, Profinet, RS-232/485, device buses)
Perform control cabinet work: wiring, terminations, component replacement, and minor panel modifications
Support machine startups, retrofits, electrical upgrades, and commissioning activities
Collaborate with engineering and production to identify root cause failures and implement permanent fixes
Maintain accurate documentation of repairs, changes, and parts usage in CMMS or maintenance logs
Ensure compliance with electrical safety, LOTO, and arc-flash procedures