Field Service Technician

Dashiell, an operating unit of Quanta Services (trading as PWR), is a leading national provider of technical and construction services supporting critical electric infrastructure. We serve electric utilities, power generation, industrial, renewable, and energy markets with integrated capabilities spanning planning and system studies, engineering and design, maintenance and testing, program management, construction, and turnkey EPC delivery.

With more than 60 years of experience executing large, complex projects, Dashiell specializes in medium- and high-voltage electrical infrastructure and delivers safe, reliable solutions across the full project lifecycle. Backed by the scale, resources, and safety culture of Quanta Services, Dashiell partners with clients to build and maintain the infrastructure that powers communities and economies. Learn more at

Dashiell is seeking a Field Service Technician to join our Field Services team in support of high-voltage substation and power system testing, maintenance, and commissioning operations. The selected candidate will be placed at the Field Service Technician Level I, Level II, Level III, or Senior level based on experience, qualifications, and demonstrated knowledge at the time of hire — offering a clear path for professionals at multiple points in their field services career to contribute and grow with our team.

Scope of responsibility, degree of autonomy, and complexity of assignments increase with each level. The position will be based in our Sulphur, LA office located at 4412 Maplewood Dr. Sulphur, LA 70663 and will report to Dashiell’s Field Supervisor.

Employee may be called upon to perform any or all of the following functions:

• Perform electrical testing and commissioning activities on high-voltage substations, switch gear, transformers, circuit breakers, and protective relay systems under close supervision.
• Perform basic electrical testing under direct guidance, including insulation resistance testing, contact resistance testing, turns ratio testing, power factor testing, and circuit breaker timing tests.
• Assist with protective relay testing and calibration using microprocessor-based relay test equipment (e.g., Doble, Megger, Omicron).
• Assist with testing and inspection of power apparatus including power transformers, current transformers, potential transformers, and medium- and high-voltage switch gear.
• Support testing and maintenance of low-voltage AC/DC systems including station batteries, battery chargers, inverters, DC distribution panels, and AC distribution systems under direct supervision.
• Support equipment start-ups and energization activities by preparing test equipment, running cables, and recording test data as directed.
• Maintain accurate and organized test documentation, field notes, and equipment logs under supervision.
• Follow all safety procedures and protocols, including proper use of PPE, lockout/tagout procedures, and adherence to NFPA 70E and OSHA standards.
• Participate in Job Safety Task Analyses (JSTAs) and safety briefings prior to work activities.
• Develop technical knowledge through on-the-job training, mentorship, and self-directed study of industry standards and equipment manuals.

• Independently perform standard electrical testing and commissioning activities on high-voltage substations, switch gear, transformers, circuit breakers, and protective relay systems with limited supervision.
• Execute a full range of standard test procedures including insulation resistance, contact resistance, turns ratio, power factor, hi-pot, and circuit breaker timing tests.
• Perform protective relay testing and calibration on microprocessor-based relay systems (e.g., SEL, ABB, Siemens, GE) using industry-standard test equipment.
• Perform testing and commissioning of power apparatus including power transformers, current transformers, potential transformers, medium- and high-voltage circuit breakers, and switch gear assemblies.
• Independently perform testing and maintenance of low-voltage AC/DC systems including station batteries, battery chargers, inverters, DC distribution panels, and AC distribution systems.
• Perform electrical calculations including transformer turns ratios, power factor corrections, and relay/metering circuit verification.
• Interpret electrical drawings, schematics, one-line diagrams, and wiring diagrams; redline drawings to reflect field conditions as needed.
• Prepare detailed test reports and commissioning…