Field Service Technician: LV/MV Switchgear & PLCs

Liberty Personnel Services, Inc.; Hackettstown (NJ); On-site; USD 60,000 - 90,000; Full time

Job summary

Liberty Personnel Services, Inc. is seeking a Field Service Technician to perform on-site troubleshooting, maintenance, and repair of electrical systems and equipment, including LV/MV switchgear, ATS, UPS, and PLC controls.

You will diagnose issues, optimize system performance, and support startups and commissioning at customer sites. The role requires 3–5 years of hands-on field experience with power systems and electrical equipment, plus strong problem-solving and communication skills.

Qualifications

• High school diploma or equivalent required; associate’s degree in electrical engineering or related field preferred.
• Certifications such as NFPA 70E, OSHA 30, or other relevant technical certifications are a plus.
• 3-5 years of hands-on experience as a field service technician, with a focus on power systems, electrical equipment, or industrial controls.
• Experience with basic troubleshooting, maintenance, and repair of electrical systems, transformers, and circuit breakers.
• Strong troubleshooting and problem-solving skills.
• Proficiency with field service management software, ERP systems, and Microsoft Office (Excel, Word).
• Good communication skills and the ability to explain technical issues clearly to customers.
• Ability to work independently and manage service priorities in a fast-paced environment.
• Experience with electrical systems at low and medium voltage levels.
• Basic experience with PLCs, SCADA systems, and protective relay systems is a plus.

Responsibilities

• Perform on-site troubleshooting, maintenance, and repair of electrical systems and equipment, including transformers, LV/MV switchgear, and PLC controls.
• Conduct system diagnostics and address technical issues to ensure minimal downtime and efficient system operation.
• Support system startups and commissioning, ensuring systems are operational and meet customer specifications.

Skills

Electrical Troubleshooting

Electrical Installation

Electrical Repair

SCADA Experience

Field Service Readiness

Microsoft Excel

Education

High school diploma or equivalent

Associate’s degree in electrical engineering or related field (preferred)

Tools

ERP software

Field service management software

Microsoft Excel

Microsoft Word

Job description

Liberty Personnel Services, Inc. is seeking a Field Service Technician to perform on-site troubleshooting, maintenance, and repair of electrical systems and equipment, including LV/MV switchgear, ATS, UPS, and PLC controls.

You will diagnose issues, optimize system performance, and support startups and commissioning at customer sites. The role requires 3–5 years of hands-on field experience with power systems and electrical equipment, plus strong problem-solving and communication skills.