BESS Field Technician 1 – Operations & Maintenance

Job Description 

The BESS Field Technician 1 is responsible for supporting the safe operation and maintenance of utility-scale battery energy storage systems, working under the direction of senior technicians and site leadership. The position is accountable for executing assigned preventive and corrective maintenance tasks, maintaining site conditions, and documenting all work performed to CES standards.

The technician performs all assigned work in accordance with CES safety procedures, OEM maintenance manuals, and applicable OSHA and NFPA requirements. Work is performed on and around energized medium- and high-voltage equipment, battery systems, power conversion systems, and balance-of-plant components.

This is a field-based position. The technician is assigned to a project site, travels between CES locations as required, participates in an on-call rotation, and responds to alarms and equipment faults dispatched by the CES Remote Operations Center, including outside of normal business hours.

The role reports to the site Lead Technician or Site Manager.

Safety Accountability

Battery storage sites carry medium- and high-voltage electrical hazards, stored chemical energy, and arc flash risk. Safety performance is a condition of employment in this role and is evaluated alongside technical performance.

• Participate in daily tailboard meetings and job hazard analyses (JHA) before any work begins
• Follow lockout/tagout (LOTO) procedures without exception
• Wear and maintain required PPE, including arc-rated clothing, for every task that requires it
• Work to NFPA 70E, OSHA, and site-specific EHS requirements
• Understand and support the site Emergency Response Plan
• Exercise stop-work authority. Every CES technician holds stop-work authority from the first day on site and is expected to use it whenever conditions or procedures are unsafe.
• Report every near miss, incident, and unsafe condition, no matter how small

Essential Duties and Responsibilities

Preventive Maintenance

• Assist senior technicians with scheduled inspections of battery systems, power conversion equipment, and balance-of-plant components
• Support battery module and rack inspections, thermal management system checks, and DC electrical inspections
• Assist with power conversion system maintenance, including cooling systems and filter replacement
• Support medium- and high-voltage work under direct supervision, including torque checks and cable termination inspections
• Assist with infrared thermography scans of site components and connections

Corrective Maintenance and Troubleshooting

• Assist the crew in diagnosing faults and isolating equipment
• Support repairs on battery, power conversion, and medium- and high-voltage equipment under the direction of a senior technician
• Respond as part of the crew to alarms dispatched by the CES Remote Operations Center
• Participate in an on-call rotation for after-hours response

Site Upkeep and General Duties

• Perform site-wide grounds inspections, housekeeping, and general site condition checks
• Support drainage, access road, fencing, and gate upkeep
• Maintain company-provided tools, vehicles, and electronics in good working condition
• Assist with spare parts inventory counts and material staging

Documentation and Reporting

• Complete work orders in the CES maintenance system the same day work is performed
• Take clear photos and record readings, serial numbers, and fault codes when issues are found
• Provide accurate equipment and work status to the Lead Technician and the Remote Operations Center

Required Qualifications

• 0–1 years of electrical, wind, solar, construction, or industrial experience, or relevant trade school training
• Valid driver's license and reliable transportation
• Demonstrated commitment to following safety procedure exactly as written
• Ability to take direction from senior technicians and apply it consistently
• Ability to work effectively as part of a crew and communicate clearly with site leadership
• Basic computer skills sufficient to log work in a digital maintenance management system daily
• Ability to pass a background check and drug screen

Physical Requirements and Working Conditions

• Lift, push, or pull up to 50 lbs
• Stand, walk, bend, kneel, stoop, and climb for 8 to 10 hours daily
• Work outdoors in all seasons and weather conditions
• Work at heights and in confined spaces as required
• Work on and around energized equipment under proper supervision and procedure
• Travel to sites and work on-call during off-shift hours and weekends

Training Provided

CES trains its technicians on the equipment they operate. New technicians receive instruction on battery energy storage systems, inverters and power conversion equipment, and the supporting site technology through a combination of structured coursework and on-the-job training at the site where that equipment is installed.

Clean Energy Services (CES) provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, or genetics. In addition to federal law requirements, CES complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

CES expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

To the extent permitted by law, employees are subject to periodic random drug testing, and post-accident and reasonable suspicion drug and alcohol testing.