Senior HV/LV Field Service Technician – Lead

Trystar Inc; Houston (TX); On-site; USD 55,000 - 83,000; Full time

Job summary

Trystar Inc. is seeking an Electrical High Voltage/Low Voltage Field Service Technician III in Houston, TX. This senior role leads complex field operations, major commissioning activities, and mentors the service organization in the field.

You will work directly with customers and installers, performing commissioning, maintenance, upgrades, troubleshooting, and repairs across high, medium, and low voltage equipment while ensuring safety and quality standards.

Qualifications

• Deep understanding of power systems and testing methodologies.
• Strong leadership and mentoring capabilities.
• Advanced analytical and problem-solving skills.
• Ability to interpret complex schematics and specifications.
• Proficiency with electrical testing equipment.
• Excellent communication, problem solving, and organizational skills.
• 4+ years of field service or equivalent experience.
• Electrical Apprentice, Electrical Journeyman, CET, EIT, ASCT required.

Responsibilities

• Serve as person-in-charge for large-scale commissioning, startup, and complex retrofit projects
• Lead troubleshooting and work on and maintain high, medium, and low voltage systems
• Service, maintain, repair, assemble, troubleshoot and commission electrical apparatus and protective devices
• Perform advanced diagnostics and root cause analysis
• Analyze test data and produce detailed technical reports
• Lead multi-resource service projects and coordinate field activities
• Train and mentor Level 1 and Level 2 technicians
• Support engineering with field data, system validation, and continuous improvement efforts
• Operate various types of electrical test equipment, analyze test data and compile technical reports
• Manage critical customer interactions and high-visibility service events
• Ensure compliance with safety standards and operational procedures
• Assist engineers in data collection, completion of power system studies, site inspections, equipment design, project scope development
• Maintain positive client relationships through on-site interactions

Skills

Power systems expertise

Leadership

Analytical thinking

Schematic interpretation

Electrical testing tools

Communication & organization

Team player

Field service experience

Education

Electrical Apprentice

Electrical Journeyman

CET

EIT

ASCT

Job description

Trystar Inc. is seeking an Electrical High Voltage/Low Voltage Field Service Technician III in Houston, TX. This senior role leads complex field operations, major commissioning activities, and mentors the service organization in the field.

You will work directly with customers and installers, performing commissioning, maintenance, upgrades, troubleshooting, and repairs across high, medium, and low voltage equipment while ensuring safety and quality standards.