Demo

Field Service Engineer - Critical Power

Redline Group - Specialist Recruitment for Technology & Electronics Companies
Phoenix, AZ Full Time
POSTED ON 9/8/2026
AVAILABLE BEFORE 10/10/2026

Field Service Engineer – UPS & Critical Power Systems

Location: Phoenix, Arizona, US


Our client is seeking an experienced Field Service Engineer – UPS & Critical Power Systems to join their growing team based in Phoenix, Arizona. This is an exciting opportunity for a skilled engineer with a strong background in Uninterruptible Power Supply (UPS) systems, critical power infrastructure, and power electronics to support customers across the United States.


The successful candidate will play a key role in the installation, commissioning, maintenance, troubleshooting, and repair of UPS systems and associated critical power equipment, ensuring maximum reliability and uptime for mission-critical applications.


Key Responsibilities:


  • Perform preventative maintenance, servicing, and emergency repairs on a wide range of UPS systems and critical power equipment.
  • Diagnose, troubleshoot, and rectify faults on UPS systems, battery systems, inverters, rectifiers, static switches, and power distribution equipment.
  • Carry out commissioning, start-up, testing, and system verification of new UPS installations.
  • Conduct site surveys, system inspections, and performance assessments
  • Support customers during planned maintenance visits and emergency call-outs.


Candidate Requirements:


  • Minimum 4 years' experience in a Field Service Engineer, UPS Engineer, Critical Power Engineer, or similar role.
  • Proven hands-on experience servicing, maintaining, commissioning, and fault-finding UPS systems from leading manufacturers.
  • Strong understanding of critical power infrastructure, power electronics, inverters, rectifiers, batteries, and IGBT-based power systems.
  • Experience carrying out electrical testing, diagnostics, and root cause analysis.
  • Valid driver's license and willingness to travel extensively.
  • This is a field-based position requiring regular travel throughout the United States.
  • Candidates must be comfortable spending significant time on customer sites and travelling nationwide as required to support service, maintenance, commissioning, and emergency response activities.


If you have a strong background in UPS systems, renewable energy & critical power solutions, commissioning, servicing, and fault finding, and are looking for your next challenge, we'd love to hear from you.


Please send your CV to NDrain@redlinegroup.Com or call 07487 756328 to speak with Nick for more information.

Salary.com Estimation for Field Service Engineer - Critical Power in Phoenix, AZ
$81,095 to $99,788
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