one tech engineering

Field Service Technician II

Salary
Permanent
|
St.Louis, Missouri

One Tech Engineering is looking for a Field Service Technician located in St. Louis, Missouri. The Field Service Technician will work on advanced inspections, preventative maintenance, and system troubleshooting.

The candidate must be a US citizen or hold a green card. The candidate should have 2+ years of hands-on technical, electrical, or mechanical work.

Field Service Technician Responsibilities:
  • Lead by example in promoting a safe working culture in the field.
  • Perform approved hazardous electrical energy control procedures and select the exact PPE required for each task.
  • Participate in and actively critique Pre-Job Briefs and Job Safety Analysis (JSA).
  • Apply personal lockout/tagout as a worker, or serve as work leader once approved.
  • Perform comprehensive electrical and mechanical inspections of solar energy systems.
  • Conduct advanced preventative maintenance including infrared thermography, insulation resistance testing, and I/V curve tracing.
  • Help build and implement preventative maintenance schedules for your assigned sites.
  • Independently diagnose and troubleshoot system and operational issues.
  • Operate and troubleshoot safely in 600VAC and 1500VDC environments without direct supervision.
  • Use specialized diagnostic tools and root-cause analysis to handle equipment repairs and replacements.
  • Create and maintain detailed, accurate records of inspections, maintenance, and repairs with minimal oversight.
  • Prepare clear technical reports and actionable equipment recommendations for the Team Lead.
  • Stay current on industry best practices, safety updates, and emerging technology.
  • Share your expertise and give supportive guidance to junior technicians on site.
  • Help improve the quality, clarity, and safety content of our training materials.
  • Support your teammates and take on other duties as assigned.
Requirements for the Field Service Technician:
  • High school diploma or equivalent.
  • 2+ years of hands-on technical, electrical, or mechanical work in any industry - solar, electrical, automotive, diesel, HVAC/R, telecommunications, wind, power generation, industrial maintenance, utilities, or a military technical specialty.
  • Solid working understanding of electrical fundamentals — AC and DC theory, series and parallel circuits, grounding, and safe work practices around energized equipment.
  • Confident with a multimeter and able to read, interpret, and work from electrical schematics or engineering drawings.
  • Strong analytical, time management, and problem-solving skills, and a track record of working independently without someone checking on you.
  • Strong communication skills and the patience to bring a junior technician along.
  • Valid driver’s license and clean driving record.
  • Solar-specific or grid-tied PV system experience.
  • FAA Part 107 drone certification preferred.
  • OSHA 30 and NFPA 70E preferred.
  • Hands-on time with I/V curve tracers, megohmmeters, or insulation testers — or comparable diagnostic instruments from another trade.
  • Familiarity with Data Acquisition Systems (DAS) or SCADA .
Speak to Our Consultant
Annika McPherson
Technical Sourcing Specialist
Share this page

Apply For this Job

For your job application, please fill in the form below.

Related Jobs

contact us