Job Description

Overview

Position: Variable Speed Drives (VFD) Field Service Technician

Location: Remote / Field-Based – Irving, TX Office

Travel Requirements: 30–50%

Experience Required: Minimum 5 years of Medium Voltage VFD experience

Position Summary

Shermco Industries is seeking an experienced Variable Speed Drives (VFD) Field Service Technician to join our growing field service team based out of our Irving, Texas location.

The ideal candidate will have extensive hands-on experience performing preventive maintenance, troubleshooting, diagnostics, and repair of Low Voltage (LV) and Medium Voltage (MV) Variable Frequency Drives. This position requires a highly skilled technician who can work independently, diagnose complex drive system issues, and provide exceptional technical service to our industrial customers.

This is a remote, field-based position with approximately 30–50% travel to customer facilities. Candidates must have a minimum of five years of direct experience working with Medium Voltage VFD systems.

Responsibilities

Key Responsibilities

Preventive Maintenance & Field Service

• Perform scheduled preventive maintenance (PM) on Low Voltage and Medium Voltage Variable Frequency Drives.
• Conduct detailed inspections of drive components, including power cells, rectifiers, inverters, DC bus components, capacitors, cooling systems, control boards, and associated electrical equipment.
• Perform electrical testing, inspections, cleaning, and component replacement in accordance with manufacturer recommendations.
• Evaluate drive performance and identify potential failures before they result in unplanned downtime.
• Perform startup, commissioning, and operational verification of VFD systems as required.

Troubleshooting & Technical Support

• Diagnose and troubleshoot electrical, electronic, and control-related failures on Low Voltage and Medium Voltage VFD systems.
• Troubleshoot drive faults, communication issues, power quality problems, and motor-related operating conditions.
• Interpret electrical schematics, wiring diagrams, control circuits, and manufacturer technical documentation.
• Utilize diagnostic software, multimeters, oscilloscopes, insulation resistance testers, and other electrical testing equipment.
• Identify failed components and perform repairs or recommend corrective actions.
• Provide technical support to customers during equipment failures and unplanned outages.
• Work independently to resolve complex technical issues while minimizing customer downtime.

Customer Service & Documentation

• Serve as a technical representative of Shermco Industries at customer facilities.
• Communicate technical findings, equipment conditions, and recommended corrective actions to customers.
• Prepare detailed field service reports documenting inspections, test results, troubleshooting activities, and repairs.
• Maintain accurate service records and documentation.
• Coordinate with internal service teams, project managers, and customers to ensure successful project execution.
• Maintain a professional appearance and deliver a high level of customer service.

Safety & Compliance

• Follow all Shermco Industries safety policies and customer-specific safety requirements.
• Demonstrate a strong working knowledge of NFPA 70E, electrical safe work practices, and Lockout/Tagout (LOTO) procedures.
• Properly utilize personal protective equipment (PPE) when working around energized electrical equipment.
• Conduct job safety analyses and identify potential hazards before beginning work.
• Maintain a safety-first approach during all field service activities.

Qualifications

Required Qualifications

• Minimum of five (5) years of hands-on experience servicing and troubleshooting Medium Voltage Variable Frequency Drives.
• Strong technical knowledge of both Low Voltage and Medium Voltage VFD systems.
• Demonstrated ability to independently troubleshoot complex VFD faults and electrical system failures.
• Experience performing preventive maintenance, diagnostics, and repairs on industrial VFD equipment.
• Strong understanding of power electronics, including IGBTs, SCRs, diodes, rectifiers, inverters, and DC bus systems.
• Knowledge of three-phase electrical power systems, industrial motors, and motor control applications.
• Ability to read and interpret electrical schematics, wiring diagrams, and technical manuals.
• Experience using electrical testing equipment and manufacturer diagnostic software.
• Working knowledge of electrical safety standards, including NFPA 70E and LOTO procedures.
• Strong written and verbal communication skills.
• Ability to work independently with minimal supervision in a field service environment.
• Willingness and ability to travel approximately 30–50%, including occasional overnight stays.
• Valid driver’s license and ability to meet company driving requirements.

Preferred Qualifications

Experience servicing Medium Voltage VFDs from manufacturers such as:

• Rockwell Automation / Allen-Bradley (PowerFlex 7000)
• Siemens (SINAMICS and ROBICON)
• ABB (ACS Series)
• Toshiba (Medium Voltage Variable Frequency Drives)
• TMEIC
• Yaskawa
• Schneider Electric
• Danfoss
• OEM factory training or certifications on Medium Voltage VFD systems.
• Experience with Medium Voltage motors and associated electrical distribution equipment.
• Familiarity with PLCs, industrial communication networks, and drive control interfaces.
• Experience with drive startup, commissioning, and system integration.
• Previous experience working in industrial facilities such as manufacturing plants, oil and gas operations, water and wastewater facilities, mining, or power generation.
• Electrical technical degree, trade school certification, or equivalent military training.

Work Environment & Travel

• Remote, field-based position supported by Shermco Industries’ Irving, Texas location.
• Approximately 30–50% travel to customer sites.
• Work performed primarily in industrial and commercial facilities.
• Must be comfortable working around Low Voltage and Medium Voltage electrical equipment.
• May require occasional weekend, overtime, or emergency service work based on customer needs.
• Must be capable of working in industrial environments and meeting applicable physical and safety requirements.

Why Join Shermco Industries?

Shermco Industries is a recognized leader in electrical testing, maintenance, engineering, and field services. Our technicians work with a wide variety of industrial electrical systems and have opportunities to expand their technical expertise while supporting critical customer operations.

This position offers an opportunity for an experienced VFD technician to apply specialized Medium Voltage drive expertise, work independently in the field, and contribute to the continued growth of Shermco’s electrical services business.

EQUAL OPPORTUNITY EMPLOYER | DRUG-FREE WORKPLACE

Shermco is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status. Shermco is a drug-free workplace.

NO AGENCIES PLEASE

Pay Range

USD $80,000.00 - USD $120,000.00 /Yr.