hirly

Lonestar Electric Supply Partners

Senior Field Technician

Houston, LA

See how you match this job — and similar ones. Free.

Upload your resume and hirly scores it against this role at Lonestar Electric Supply Partners first, then against similar open jobs, and shows where you fit and why.

PDF or DOCX, up to 12MB. No sign-up to see your matches.

Get past the screening software and onto a recruiter's desk

hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.

  • Keywords matched to this posting
  • Fit score before you apply
  • Cover letter included
Tailor my resume for this job →

Apply from your AI assistant

Connect hirly to Claude and ask it to apply to this job. hirly tailors your resume, fills the employer’s form and asks before sending. ChatGPT: manual setup today.

Some employer sites stop an application at a CAPTCHA or sign-in and hand it back with a link. Applying needs a paid plan. Works with any assistant that supports MCP.

hirly's read of this role

Role family
Skilled trades
Seniority
Senior
Country
US
Work mode
On-site / unstated
First seen by hirly
27 Oct 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

Description

VETERANS ARE ENCOURAGED TO APPLY

The Senior Field Technician – Power Systems supports the startup, commissioning, testing, and troubleshooting of electrical power distribution systems at customer sites throughout the country. This role serves as the on-site technical lead, working independently to execute complex field projects, ensure safe system energization, and deliver high-quality service to customers.

The position requires regular local travel to multiple customer locations within Louisiana and other states, though occasional extended hours may be necessary during critical commissioning or energization activities.

Responsibilities:

Lead startup, commissioning, and acceptance testing of electrical power systems, including medium-voltage switchgear, low-voltage switchgear, switchboards, motor control centers (MCCs), and variable frequency drives (VFDs).

Perform advanced electrical testing, including insulation resistance, contact resistance, relay testing, primary injection testing, secondary injection testing, and functional verification.

Conduct low-voltage and medium-voltage electrical acceptance testing and commissioning activities in accordance with project specifications and industry standards.

Perform ground fault system testing, troubleshooting, and validation of protective schemes.

Test, inspect, and verify the operation of switchgear, switchboards, MCCs, circuit breakers, protective relays, and associated power distribution equipment.

Analyze test data, document results, identify deficiencies, and recommend corrective actions necessary for system acceptance and energization.

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, engineers, and internal stakeholders.

Make real-time decisions during system energization and project execution.

Prepare complete, accurate, and customer-ready field service reports.

Assist with project planning, scope review, and technical evaluation to support accurate project quoting and execution.

Work closely with the Service Coordinator and Sales Team to help establish realistic project scopes, schedules, and customer expectations.

Mentor and develop junior technicians, providing guidance and training in field operations.

Ensure strict adherence to safety standards, including NFPA 70E and OSHA 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.

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.

Preferred Qualifications:

NPFA 70E

Experience aligned with International Electrical Testing Association (NETA) standards.

NETA Certification (Level II–IV) preferred.

Experience with protective relays and control systems.

OEM training (Siemens, Eaton, Schneider, ABB).

Journeyman or Master Electrician license.

Physical Requirements and Work Environment

This role requires regular standing, walking, climbing stairs and ladders, kneeling, bending, and working in industrial and outdoor environments, including electrical rooms, substations, and construction sites.

The Senior Field Service Technician must be able to safely lift, carry, push, and pull tools and test equipment weighing up to 50 pounds independently on a regular basis.

Occasional handling of heavier equipment may be required and is typically performed using mechanical assistance, carts, hoists, or team-lifting in accordance with company safety procedures and OSHA guidelines.

The role requires the ability to wear appropriate personal protective equipment (PPE), including arc-flash protective gear, and to work extended hours during system startup, commissioning, and energization activities.

Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential functions of the position.

Benefits:

Medical, dental, life and vision insurance

401(k) Retirement Plan and Match

Paid Time Off

Specified Holiday Pay

Flexible Spending Account

Disclaimer:

This job description is a general outline of the day-to-day duties to be expected and may not cover all job responsibilities that may be assigned by management.

Ranger Field Services is an equal opportunity employer and does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age or other legally protected status.

Original posting on Lonestar Electric Supply Partners's site ↗

Listed on hirly, a job board. hirly is not the employer: Lonestar Electric Supply Partners is hiring for this role.

Browse similar roles

Want this one?

Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.

Tailor my resume for this job