Site Operations Technician

The role

The Site Operations Technician performs preventive maintenance and corrective repairs on a deployed mobile BESS fleet. This role involves high-voltage isolation, site mobilization, and supporting commissioning and testing.

What you will do

• Perform preventive maintenance on mobile BESS units including battery racks, PCS/inverters, HVAC, and switchgear
• Execute corrective repairs from work orders and field diagnosis
• Perform high-voltage isolation, lockout/tagout, and zero-energy verification
• Set up, connect, and demobilize mobile units at customer sites
• Support commissioning and site acceptance testing
• Isolate faults using diagnostic tools
• Keep complete service records in the CMMS
• Manage depot spares and tooling
• Train junior and contract technicians

Required qualifications

• 5+ years hands-on as a technician working with high voltage electrical systems
• Demonstrated competence on energized and de-energized high-voltage DC systems, including isolation, LOTO, and zero-energy verification
• Practical understanding of Li-ion packs: BMS behavior, cell balancing, thermal management, and safe handling of damaged or faulted modules
• Works from electrical schematics, wiring diagrams, and manufacturer service procedures without hand-holding
• Documentation discipline
• Valid driver's license with clean record
• Able to tow and position trailer-mounted equipment
• Lift 50 lb
• Work outdoors in all weather

Nice to have

• OEM high-voltage certification (Tesla, Rivian, Ford, GM, or similar) or EVITP certification
• NFPA 70E training
• OSHA 10/30
• Experience with 480 VAC three-phase equipment, switchgear, or industrial controls
• Experience with stationary storage, solar, generator, or microgrid systems
• Forklift certification
• Class A CDL

Benefits

• Equity ownership through stock options
• Comprehensive health coverage (medical, dental, and vision) through an HRA with a generous allowance
• Retirement savings plan
• Unlimited paid time off

Before you apply

• Critical Loop does not provide visa sponsorship for this role
• Please do not apply if at any time you will need immigration support

About the company

Critical Loop is shaping the next generation of energy systems by building the integrated edge grid of the future. They specialize in advanced energy management and battery control systems.