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 SummaryShermco 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.
ResponsibilitiesKey ResponsibilitiesPreventive 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.
- 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.
- 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.
- 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.
- 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.
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.
- 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.
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 RangeUSD $80,000.00 - USD $120,000.00 /Yr.
Skills Required
- Two-year electrical technical degree, or equivalent education, experience, and training
- Bachelor's degree in Electrical Engineering or Engineering Technology
- Experience or aptitude developing skills with low- and medium-voltage variable frequency drives and soft starters
- Factory training and certification from a major manufacturer for repair of low- and medium-voltage drive systems
- Automation experience
- Strong computer skills, including Microsoft Word, Excel, and PowerPoint
- Ability to work safely around high-voltage electricity
- Clear verbal and written English communication skills
- Customer service and interpersonal skills
- Ability to coordinate customer, vendor, and manufacturer contacts
- Ability to pass pre-employment and random drug and alcohol screening
- Ability to pass a criminal background check
- Ability to lift up to 50 pounds, climb ladders, stand for extended periods, and drive regularly
- Ability to pass a fit-for-duty physical examination
- Valid driver's license and maintainable good driving record
- Availability for overtime and periodic domestic travel
- U.S. passport and international travel availability
What We Do
Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and electrical power distribution systems and related equipment for the light, medium, and heavy industrial base nationwide. Shermco specializes in industrial, utilities and wind generation technologies and the associated motors, generators, drives, switchgear and protective equipment. Founded in 1974 in Dallas, the company is comprised of two strategic business units; the Machine Services Division and the Engineering Services Division. Shermco's corporate location is in Irving, Texas, with service centers in Angleton, Austin, Cedar Rapids, Columbus, Des Moines, Houston, Minneapolis, Omaha, Port Arthur, San Antonio, Sweetwater, and Tulsa. Shermco Industries Canada is based in Regina, Saskatchewan, with service centers in Calgary, Edmonton, Saskatoon and Winnipeg. Shermco Industries has over 1200 full-time employees. The company is a member in good standing with the Electrical Apparatus Service Association (EASA), American Wind Energy Association (AWEA), Professional Electrical Apparatus Recyclers League (PEARL), and the InterNational Electrical Testing Association (NETA). Shermco is also a six time recipient of the ‘Best Places to Work' award, recognized by the Austin Business Journal as well as the Dallas Business Journal. For more information about Shermco Industries, visit www.shermco.com
.jpeg)
