Maintenance Support Specialist – 1st, 2nd, 3rd & Weekend Shifts

Caterpillar Inc.

Maintenance Support Specialist roles available at Caterpillar focusing on HVAC, Door, CNC, and PLC systems. Supporting activities and installations during weekends, holidays, and plant shutdowns.

Posted 7/12/2026full-timeSanford • North Carolina • 🇺🇸 United StatesMid-LevelSenior💰 $30 - $32 per hourWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in troubleshooting and maintaining HVAC systems, including multizone heating and cooling, as well as PLC-controlled manufacturing equipment. Proficient in reading and modifying laddered logic and interpreting complex electrical prints and schematics.

Highest-signal resume keywords

HVAC UnderstandingPLC ProgrammingTroubleshooting PLC-Controlled EquipmentMazak Machining Centers ExperienceHMI Configuration and Troubleshooting

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Troubleshooting Multizone Heating SystemsTroubleshooting Cooling SystemsTroubleshooting Industrial Refrigeration SystemsMaintaining Air Treatment SystemsMaintaining Water Treatment SystemsRepairing Loading Dock EquipmentDiagnosing Hardware FaultsDiagnosing Software FaultsReading Electrical PrintsModifying Laddered Logic

Tools & Technologies

Allen-BradleyRockwellSiemensMitsubishiOmronSchneider Electric

Industry Keywords

Electrical SystemsMechanical SystemsPlumbing SystemsDock LevelersCommercial Doors

About the role

Key responsibilities & impact

Troubleshoot multizone heating, cooling and industrial refrigeration systems
Maintain, test and balance air and water treatment systems
Repair loading dock equipment
Conduct inspections on dock levelers and commercial doors
Diagnose and repair hardware and software faults
Read, write and modify laddered logic
Interpret complex electrical prints, wiring diagrams and hydraulic schematics

Requirements

What you’ll need

HVAC (Heating, Ventilation, Air Conditioning) understanding
Knowledge of electrical, mechanical, and plumbing systems related to HVAC equipment
5+ years of experience with Mazak machining centers (FJV and Horizontal)
Experience troubleshooting, diagnosing and repairing PLC-controlled manufacturing equipment
Familiarity with PLC programs using platforms such as Allen-Bradley, Rockwell, Siemens, Mitsubishi, Omron or Schneider Electric
Experience maintaining and modifying PLC programs
Experience configuring and troubleshooting HMIs (Human Machine Interfaces)

Benefits

Comp & perks

Comprehensive benefits (medical, dental, vision, RX, and 401K)
Paid holidays
Paid time off
Paid training that begin on day one of employment
Quarterly bonus
Cash sign-on bonus