Senior Electrician - Utility-Scale BESS Lead Technician

Critical Loop; United States; On-site; USD 110,000 - 170,000; Full time

Job summary

Critical Loop is seeking a Master Electrician with deep BESS expertise to lead electrical execution for field deployments. You will serve as the technical expert for installation, commissioning, troubleshooting, and service across the battery storage fleet.

This hands-on leadership role requires mentoring junior electricians, making field decisions, and partnering with engineering to solve complex problems. Travel up to 30% is expected.

Qualifications

• Master Electrician license or equivalent field leadership.
• 8+ years of electri­cal experience in industrial, utility, or commercial settings.
• 3+ years with utility-scale Battery Energy Storage Systems (BESS).
• Experience commissioning/servicing major storage platforms (Tesla Megapack, Fluence, Sungrow, Powin, Wärtsilä, BYD, etc.).
• Experience with 480V AC and 1000–1500V DC systems and MV equipment.
• Hands-on inverter installation/commissioning with major brands.
• Strong knowledge of BESS, BMS, phase rotation, multi-phase commissioning, arc flash, and DC hazards.
• LOTO/arcing testing and electrical safety procedures.
• Ability to read electrical schematics and one-line diagrams.
• Valid driver's license and ability to travel.

Responsibilities

• Lead electrical installation, commissioning, maintenance, and troubleshooting of utility-scale BESS.
• Perform FAT and continuity, impedance, phase rotation, and multi-phase testing.
• Oversee commissioning activities including energization, startup, and testing.
• Troubleshoot high-voltage AC/DC systems.
• Isolate, de-energize, and return BESS to service safely.
• Install/replace PCS/inverters, transformers, switchgear, and racks/modules.
• Interpret electrical drawings and commissioning procedures.
• Route and terminate large-diameter wire (2/0 to 500 MCM).
• Support root-cause analysis of electrical failures.
• Follow QA, torque, and inspection requirements; document results.
• Collaborate with Engineering to resolve field issues and improve reliability.
• Mentor junior technicians and electricians.
• Maintain NFPA 70E, OSHA, LOTO, and site safety standards.
• Travel up to 30% to customer sites for commissioning and service.

Skills

Master Electrician

Field leadership

BESS experience

8+ years electrical experience

Inverter installation

High voltage awareness

LOTO and NFPA 70E safety

Tools

Tesla Megapack

Inverter platforms (EG4, SMA, Sungrow, SolarEdge)

Job description

Critical Loop is seeking a Master Electrician with deep BESS expertise to lead electrical execution for field deployments. You will serve as the technical expert for installation, commissioning, troubleshooting, and service across the battery storage fleet.

This hands-on leadership role requires mentoring junior electricians, making field decisions, and partnering with engineering to solve complex problems. Travel up to 30% is expected.