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Lonestar Electric Supply

Wholesale electrical distributor with design services

Lead Field Service Technician – Power Systems

Equipment Field ServiceConfirmed live in the last 24 hours
Full-timeHouston, TX, USANo salary listed

About the Job

Requirements

  • 5–10+ years of experience in field service, commissioning, or electrical testing.
  • Strong experience with medium-voltage and low-voltage power distribution systems.
  • Proven ability to lead field projects independently.
  • Advanced troubleshooting and diagnostic capability.
  • Strong communication and leadership skills in field environments.
  • Willingness to travel as required.
  • Ability to safely perform regular standing, walking, climbing stairs and ladders, kneeling, bending, and work in industrial and outdoor environments, including electrical rooms, substations, and construction sites.
  • Ability to safely lift, carry, push, and pull tools and test equipment weighing up to 50 pounds independently on a regular basis.
  • Ability to wear appropriate personal protective equipment, including arc-flash protective gear, and work extended hours during system startup, commissioning, and energization activities.

Responsibilities

  • Lead startup, commissioning, and acceptance testing of electrical power systems, including medium-voltage switchgear, low-voltage switchgear, switchboards, motor control centers, and variable frequency drives.
  • Perform advanced electrical testing, including insulation resistance, contact resistance, relay testing, and functional verification.
  • Interpret complex one-line diagrams, schematics, and control logic.
  • Diagnose and resolve system issues independently in the field.
  • Serve as the on-site lead, coordinating with customers, contractors, and engineers.
  • Make real-time decisions during system energization and project execution.
  • Prepare complete, accurate, and customer-ready field service reports.
  • Mentor and develop junior technicians by providing guidance and training in field operations.
  • Ensure strict adherence to safety standards, including NFPA 70E and Occupational Safety and Health Administration requirements.
  • Support continuous improvement of field service processes and standards.
  • Travel to customer sites as required to support project execution.
  • Perform other duties as assigned by management.
  • Safely handle heavier equipment using mechanical assistance, carts, hoists, or team-lifting in accordance with company safety procedures and Occupational Safety and Health Administration guidelines.

Desired Qualifications

  • Experience aligned with International Electrical Testing Association standards.
  • International Electrical Testing Association certification at Level II, III, or IV.
  • Experience with protective relays and control systems.
  • Original equipment manufacturer training from Siemens, Eaton, Schneider, or ABB.
  • Journeyman or Master Electrician license.

About the Company

Lonestar Electric Supply

Wholesale electrical distributor with design services

Lonestar Electric Supply is a wholesale distributor of electrical supplies based in Houston, Texas, serving commercial, residential, and industrial contractors since 2015. It provides a broad range of electrical products and value-added services beyond basic distribution, including lighting and controls design, code compliance analysis, submittal packages, and project management to coordinate material delivery and budgeting. The company differentiates itself through strong customer service, deep product knowledge, robust vendor relationships, and efficient logistics, supported by specialized divisions (Lonestar Equipment Solutions, Lonestar Integrated Solutions, Lonestar Electric Industrial Supply) and a focus on high-growth sectors like data centers, oil & gas, and large solar projects. Its goal is to expand its regional footprint across the southern United States while continuing to offer end-to-end solutions that help contractors plan, source, and execute electrical projects.

Company size
501-1,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Houston, TX
Founded
2015

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