Maintenance Mechanic

MAC Incorporated; South San Francisco (CA); On-site; USD 126,078,000 - 134,674,000; Full time

Job summary

MAC Incorporated in South San Francisco, CA is seeking an Industrial Maintenance Technician to troubleshoot, repair, install, and maintain highly technical production equipment and facility systems.

This role requires strong electrical and mechanical troubleshooting across 480VAC to 24VDC, including PLCs, motors, VFDs, conveyors, pneumatics, hydraulics and welding. OT availability is expected on occasion for continuous operations.

Qualifications

• 6+ years of industrial maintenance experience in manufacturing.
• Strong electrical and mechanical troubleshooting.
• Experience with 480VAC through 24VDC electrical systems.
• Experience with AC/DC motor controls and VFDs.
• PLC logic knowledge preferred.
• Experience with motors, conveyors, pneumatics, hydraulics, and automated production equipment.
• Ability to read electrical schematics, P&IDs, and manuals.
• Welding experience (MIG/TIG) and metal fabrication preferred.
• Conduit layout/installation experience preferred.
• Strong PM/PP maintenance and root-cause analysis experience.
• Experience installing and commissioning industrial machinery and electrical systems.
• Familiarity with NEC, OSHA, ANSI, and machine safety standards.
• Ability to diagnose and resolve complex equipment problems.
• Experience operating forklifts, scissor lifts, and other industrial mobile equipment.
• Overtime willingness.

Responsibilities

• Troubleshoot, repair, install, and maintain industrial equipment.
• Perform preventive and predictive maintenance to reduce downtime.
• Troubleshoot PLCs and machine control systems.
• Troubleshoot electrical systems from 480VAC to 24VDC.
• Maintain motors, VFDs, conveyors, hydraulics, pneumatics, HVAC, lighting.
• Read electrical schematics, P&IDs, and manuals.
• Root cause analysis and corrective actions for recurring issues.
• Support equipment startups and instrument calibration.
• Evaluate and create PM tasks as needed.
• Coordinate with outside contractors as needed.

Skills

Industrial maintenance

Electrical troubleshooting

Mechanical troubleshooting

480VAC-24VDC

Motor controls

VFDs

PLC logic

Motors

Conveyors

Pneumatics

Hydraulics

Automation equipment

Welding

Conduit

PM/RC analysis

Diagnostics

Machinery install/commission

Safety standards

Forklift operation

Job description

Maintenance Mechanic South San Francisco, California
Job Ref: 41619

LARGE MANUFACTURING PLANT IN SOUTH SAN FRANCISCO CA IS LOOKING FOR INDUSTRIAL MAINTENANCE MECHANICS. LOOKING FOR SOMEONE WHO IS SHARP WITH PLCS, 480V, VFDS, ETC.

PAYS: $44-$47 HOURLY

AGAIN LOOKING FOR SHARP AND STABLE INDUSTRIAL MAINTENANCE MECHANICS

WE HAVE OPENINGS ON THE THREE SHIFTS AS WELL!

Industrial Maintenance Technician – Electrical/Mechanical

Position Summary

The Industrial Maintenance Technician is responsible for troubleshooting, repairing, installing, and maintaining industrial production equipment and facility systems.

This is a highly technical, hands‑on position requiring strong electrical and mechanical troubleshooting skills, including experience with PLCs, 480V electrical systems, VFDs, motors, conveyors, pneumatics, hydraulics, welding, and automated production equipment.

Key Responsibilities

• Troubleshoot, repair, install, and maintain industrial production and processing equipment.

• Perform preventive and predictive maintenance to improve equipment reliability and minimize downtime.

• Troubleshoot PLCs and machine control systems and perform program edits as required.

• Troubleshoot electrical systems ranging from 480VAC to 24VDC.

• Maintain and repair AC/DC motors, VFDs, conveyors, hydraulics, pneumatics, HVAC, lighting, and production equipment.

• Diagnose electrical problems involving wiring, switches, sensors, controls, and other electrical components.

• Read and troubleshoot from electrical schematics, P&IDs, equipment manuals, and technical drawings.

• Perform root cause failure analysis and implement corrective actions for recurring equipment issues.

• Support equipment startups, center‑lining, instrumentation calibration, and production troubleshooting.

• Evaluate existing PMs and develop new preventive maintenance tasks as needed.

• Create work orders and identify/order required replacement parts.

• Perform MIG/TIG welding and metal fabrication on steel and stainless steel.

• Support equipment installations, plant improvements, and capital projects.

• Provide technical training and troubleshooting support to production personnel.

• Support Lean, Continuous Improvement, Gemba, and equipment reliability initiatives.

• Coordinate and provide technical guidance to outside contractors.

Qualifications

• 6+ years of industrial maintenance experience in a manufacturing environment required.

• Strong electrical and mechanical troubleshooting experience required.

• Experience troubleshooting 480VAC through 24VDC electrical systems.

• Experience with AC/DC motor controls and VFDs.

• Working knowledge of PLC logic, hardware, and troubleshooting strongly preferred.

• Strong experience with motors, conveyors, pneumatics, hydraulics, and automated production equipment.

• Ability to read electrical schematics, P&IDs, and equipment manuals.

• Experience with MIG/TIG welding and metal fabrication preferred.

• Conduit layout and installation experience preferred.

• Strong preventive/predictive maintenance and root cause analysis experience.

• Experience installing and commissioning industrial machinery and electrical systems.

• Familiarity with NEC, OSHA, ANSI, and machine safety standards.

• Ability to independently diagnose and resolve complex equipment problems.

• Experience operating forklifts, scissor lifts, and other industrial mobile equipment.

• Must be available for overtime, weekends, and holidays as required.

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