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.

Clean Energy Services (CES) was founded on four core values: Safety, Quality, Trust, and Efficiency.

We are looking for motivated individuals who want to grow with our company and contribute to our culture of excellence. Because CES supports projects across multiple regions, this role is designed for people who are comfortable working at locations outside their home area and who enjoy traveling to new sites as part of their regular schedule.

About Our BESS Operations

Clean Energy Services (CES) is an independent operations and maintenance (O&M) provider built to run complex, utility-scale battery energy storage systems (BESS). We combine dedicated field crews with a 24/7 Remote Operations Center (ROC) and deep energy-storage operating expertise.

When a battery site is built, someone has to keep it running safely for the next twenty years. Our field technicians are the people who do that.

Our Expectations

Safety:

Safety is everyone’s responsibility. All employees are expected to actively participate in CES’s safety programs, speak up about safe/unsafe conditions, and always report incidents—no matter how minor. Every employee has both the right and the obligation to stop any work they believe is unsafe or unclear.

Professionalism & Client Interaction:

As a member of our field team, you are often the first point of contact with our clients. We expect professionalism, positivity, and strong representation of CES at all times. If you see opportunities to improve our work processes, we want you to raise them.

Teamwork & Work Ethic:

Project work requires attention to detail, thoughtful planning, and full participation from everyone on site. No one should remain idle when others are working. We expect employees to properly care for and maintain their equipment and to use downtime for maintenance or other improvement work.

What Employees Can Expect from CES

Fair treatment and growth opportunities. We invest in people who want long-term careers with CES and provide clear paths for advancement.
Annual performance bonuses based on results and tenure.
Spot bonuses recognizing exceptional safety practices and job performance throughout the year.

Clean Energy Services remote jobs

BESS Field Technician 1 – Operations & Maintenance

Battery Storage Technician

O&M Technician — Battery Energy Storage (BESS) / Power Systems

Solar Maintenance Technician