Generator Mechanic Jobs in Raleigh, NC (NOW HIRING)

Primary Function
The Master Technician- Senior Start Up will commission, program, optimize small and large CAT generator systems and integrate them with site power infrastructure, including ATS, switchgear, paralleling equipment, and SCADA/controls systems.  The role will be the technical authority onsite for initial start-up, functional testing, system programming, troubleshooting, and customer turnover. It requires an expert in CAT controls and power system operation who can ensure systems operate safely, reliably, and in compliance with NEC, NFPA 70/70E/110, IEEE, and Caterpillar commissioning standards. 

Essential Duties
Generator Commissioning & CAT Controls 

• Perform full initial startup on Caterpillar generator sets from 10 kW to multimegawatt units 
• Program, configure, and troubleshoot all Caterpillar control platforms, including EMCP 2/3/4 series, Cat Digital Genset Controllers, paralleling controls (MCP, LSM), and CANbus/Modbus components 
• Validate and adjust governor/AVR parameters, load sharing, kVAR/PF controls, droop/isochronous settings, and paralleling logic 
• Run complete load bank tests (resistive/reactive), step tests, waveform analysis, and transient response testing 
• Ensure all programming aligns with Caterpillar commissioning standards and site design documents 

Automatic Transfer Switch (ATS) StartUp, Testing & Troubleshooting 

• Perform full initial startup, functionality testing, and troubleshooting for Caterpillar, ASCO, Eaton, Zenith, ABB, and other ATS manufacturers. 
• Verify voltage/frequency sensing, time delays, transfer/retransfer logic, and contact/interlock verification 
• Test closedtransition/opentransition operation and verify proper communication with CAT generator controls 
• Document all ATS test data and ensure compliance with NFPA 110 Level 1/Level 2 requirements 

Switchgear Integration (LV/MV) 

• Possess extensive knowledge of switchgear components, protective devices, interlocking schemes, and control wiring 
• Perform I/O verification, pointtopoint checks, and sequence-ofoperations testing 
• Troubleshoot breaker circuits, sync check circuits, PT/CT circuits, and protection elements 
• Validate paralleling with gensets and utility and confirm relay configurations 
• Coordinate with engineering on settings and coordination studies 

Troubleshooting & System Optimization 

• Diagnose issues involving mechanical, electrical, controls, and network communication layers 
• Perform rootcause analysis on sync failures, load sharing imbalance, nuisance trips, communication faults, and power quality problems 
• Adjust CAT controller parameters to ensure stable and reliable performance 

Safety, Documentation & Project Execution 

• Lead on-site safety (NFPA 70E, arc flash boundaries, LOTO, JHAs) 
• Maintain documentation: commissioning reports, asbuilts, redlines, test results 
• Provide enduser training on CAT generator and controls operation 
• Coordinate with engineers, electricians, utilities, contractors, and inspectors 

Minimum Requirements 

Education 

High School graduate; technical college graduate preferred. 

Work Experience 

• 5-7+ years' experience with generator packages, switchgear, and Automatic Transfer Switches (3+ years as a high level GPEC EPG Master Technician performer for all internal candidates).  
• Experience in diagnosing and repairing diesel and gas engine failures. 

Physical 

• Must be able to periodically lift and handle 75 lbs. in a safe manner. 

Other 

• Former Caterpillar (CAT) dealership or OEM experience is highly preferred. 
• Experience with Caterpillar Electronic Technician Software is a plus.   
• Must be well versed in the electrical and mechanical aspects of power generation.  
• Must have knowledge of Generator and Utility Paralleling, PLC’s, Electronic Engine Governors, Remote Monitoring Systems, Industrial Controls, and other Power Distribution equipment. 
• Proficient with various types of electronic test equipment such as Oscilloscopes, Digital Voltage Meters, Phasing Indication Meters, Harmonic Distortion Meters, and Load Banks (resistive/reactive).  
• Must be able to understand electronic diagrams and schematics 
• Possess or immediately obtain related mechanical/electrical hand tools that meet required company standards. 
• Must have a valid state driver’s license with an acceptable driving record. 
• Must be able to drive a company vehicle daily and periodically take overnight business trips. 
• Must have advanced PC skills preferably with MS Excel, Word, Outlook and other Windows based programs.  
• Excellent customer service and communication skills are required.