
Master Technician - Senior Start Up
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Overview
Job Description
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 start‑up on Caterpillar generator sets from 10 kW to multi‑megawatt unitsProgram, configure, and troubleshoot all Caterpillar control platforms, including EMCP 2/3/4 series, Cat Digital Genset Controllers, paralleling controls (MCP, LSM), and CANbus/Modbus componentsValidate and adjust governor/AVR parameters, load sharing, kVAR/PF controls, droop/isochronous settings, and paralleling logicRun complete load bank tests (resistive/reactive), step tests, waveform analysis, and transient response testingEnsure all programming aligns with Caterpillar commissioning standards and site design documents
Automatic Transfer Switch (ATS) Start‑Up, Testing & Troubleshooting
Perform full initial start‑up, 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 verificationTest closed‑transition/open‑transition operation and verify proper communication with CAT generator controlsDocument 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 wiringPerform I/O verification, point‑to‑point checks, and sequence-of‑operations testingTroubleshoot breaker circuits, sync check circuits, PT/CT circuits, and protection elementsValidate paralleling with gensets and utility and confirm relay configurationsCoordinate with engineering on settings and coordination studies
Troubleshooting & System Optimization
Diagnose issues involving mechanical, electrical, controls, and network communication layersPerform root‑cause analysis on sync failures, load sharing imbalance, nuisance trips, communication faults, and power quality problemsAdjust 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, as‑builts, redlines, test resultsProvide end‑user training on CAT generator and controls operationCoordinate with engineers, electricians, utilities, contractors, and inspectors
Minimum RequirementsEducationHigh 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 schematicsPossess 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.
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