Site Lead Technician - Operations & Maintenance

Site Lead Technician - Operations & Maintenance
Location: Leesburg, VA
Employment Type: Full-Time/On-Site

Reports to: Senior Field Manager, Storage & Hybrid O&M

Travel: Regional, as needed

On-call: Rotation

Clean Energy Services (CES) is an independent, execution-first operations and maintenance (O&M) provider purpose-built to support complex, utility-scale battery energy storage systems (BESS). Our platform combines dedicated field teams, a 24/7 Remote Operations Center (ROC), and deep energy-storage operating expertise to reduce operational risk, improve availability, and protect long-term asset value

CES is providing long-term O&M for a utility-scale battery energy storage system at the Evergreen Energy Center in Leesburg, Virginia. The facility is a transmission-connected battery storage site serving a Northern Virginia utility offtake. Key equipment includes the substation, main power transformer, Hitachi battery systems, EPC Power conversion systems, balance of plant, and the EMS / SCADA platform.

The technician joins the site through commissioning and commercial operation, working alongside the EPC and the owner's team ahead of care, custody and control transfer, and carries the site into long-term operations. The role also supports CES PV sites in the region as needed, including Bethlehem, Railroad and Reid.

This is a Virginia prevailing wage project.

The Site Lead Technician is the dedicated on-site technician and primary point of contact for the site. You will perform preventive and corrective maintenance, serve as first responder for alarms and abnormal conditions, and own day-to-day site communications and documentation, working in close coordination with the CES Remote Operations Center (ROC) and warranty management team.

This is a hands-on role for a self-sufficient technician who is comfortable being the only CES person on site. You will be writing and executing switching procedures, not just following them.

Job Description 

Site Operations & Coordination

• Run day-to-day site operations and maintenance to keep the assets available, compliant, and running efficiently
• Serve as the primary on-site point of contact, interfacing daily with the CES ROC, warranty management team, and Senior Field Management
• Own on-site communications, documentation, and recordkeeping: status updates, work records, and reporting inputs
• Coordinate on-site subcontractors and service vendors, confirming work is performed safely and on schedule
• Execute the maintenance schedule, provide scope and status for each site visit, and coordinate approved site access and shutdowns
• Develop, review and issue site switching procedures and clearance orders

Preventive Maintenance

• Execute the scheduled maintenance program across the BESS, PCS, and balance of plant per OEM requirements and CES procedures
• Battery / BESS: module and rack inspections, BMS checks and calibration, thermal management system maintenance, DC electrical inspections (bi-annual and annual PM scope)
• Power Conversion System: monthly, quarterly, bi-annual, and annual PM; cooling system maintenance; AC connection inspections; consumable (filter) replacement
• Collector / MV: medium-voltage transformer PM, torque checks, cable termination inspections
• MPT inspections and DGA analysis
• Perform or coordinate annual infrared (IR) / thermographic scans of all site components and connections

Corrective Maintenance & Emergency Response

• Provide rapid fault diagnosis, isolation, and first-response troubleshooting for BESS, PCS, and MV/HV equipment
• Perform OEM-certified low-level battery corrective maintenance and PCS corrective work
• Respond to ROC-dispatched alarms and service requests within established response-time targets
• Document root causes and corrective actions; coordinate OEM and vendor support as needed
• If corrective measures do not resolve fault conditions, convert these to warranty items, ensuring all troubleshooting measures and corrective actions are documented and provided to the warranty management team for disposition and OEM reporting for warranty execution

Safety & Compliance

• Conduct daily tailboards, job hazard analyses (JHA), and lockout/tagout (LOTO) on MV/HV and energized systems
• Maintain compliance with NFPA 855, NFPA 70E, OSHA, and site-specific EHS requirements; exercise stop-work authority when conditions are unsafe
• Support the site Emergency Response Plan (ERP) and participate in site and ERP training

Warranty Management

• Detect and identify potential warranty issues across battery, PCS, and balance-of-plant equipment during preventive maintenance, corrective work, and inspections
• Document each issue clearly with photos, meter and test readings, serial numbers, fault codes, and a plain-language description, and log it in the work order / warranty tracking system
• Notify and hand off to the CES warranty management team
• Support claim execution: perform OEM-directed troubleshooting, coordinate parts / RMA and return logistics, and supply any additional evidence the OEM requests
• Track each claim through to resolution and record the outcome (repair, replacement, or credit) so warranty status stays current in the system

Spare Parts

• Manage on-site spare parts inventory: consumption, movement, replenishment, min/max levels, and condition monitoring

Reporting & Documentation

• Record all work the same day it is performed, including findings, corrective actions, parts used, and equipment status, and provide clear status updates to the ROC and the leadership team
• Produce monthly reporting inputs: PM completion, corrective-maintenance activity, spare-parts usage, health and safety, and equipment calibration and test results
• Deliver accurate, on-time data to CES for owner and customer reporting and compliance
• Maintain organized, audit-ready site records (logs, checklists, test results, and OEM correspondence)
• Coordinate outage notifications with the CES ROC, interconnecting utility and applicable market participant / scheduler

Balance of Plant

• Maintain site condition: drainage, access roads, fencing and gates, grounds, and control house
• Coordinate with vegetation-management providers to support safe access, drainage, and reliability

Required Qualifications

• Must reside within approximately 1 hour of Leesburg, VA, and be available for on-call and emergency response rotation. Relocation assistance is available for the right candidate.
• 3+ years of hands-on experience in utility-scale electrical operations and maintenance
• Hands-on battery energy storage (BESS) experience, comfortable working across battery, PCS, and balance-of-plant systems. Manufacturer-agnostic; site-specific OEM platforms trained post-hire.
• Strong substation operations background, including HV/MV switching, energization and de-energization, and clearance and switching-order procedures
• Demonstrated medium- and high-voltage switching experience (34.5 kV class and above)
• Able to write switching procedures, not only execute them
• Strong background in lockout/tagout (LOTO) and energized-work procedures
• Proven preventive maintenance experience on substation and electrical equipment: transformers, switchgear, MVT systems, breakers, protective relays, and cable terminations (torque checks, thermal scans, testing)
• Clear, professional communicator, able to give concise written and verbal updates to the ROC, CES leadership, and the owner, and to document work accurately and on time
• Able to work independently as the on-site point of contact, manage daily priorities with minimal supervision, and coordinate vendors and subcontractors
• Strong working knowledge of electrical safety standards (NFPA 70E, OSHA 10/30) and willingness to work on and around energized equipment under proper procedures
• Comfort reading single-line diagrams, schematics, torque and PM specifications, and OEM manuals
• Ability to support the creation of O&M processes and procedures, provide input on day-to-day operations, and efficiently perform daily PM tasks on a schedule
• Valid driver's license and ability to pass background check and drug screen
• Ability to lift up to 50 lbs, work outdoors in all weather, climb, and work at heights as required

Preferred Qualifications

• Substation or utility O&M background (transmission and distribution, power generation, or heavy industrial)
• Experience with Hitachi battery systems and EPC Power conversion systems
• Protective relay testing and calibration and NETA-type electrical testing experience
• Familiarity with power conversion systems (PCS / inverters) and SCADA/EMS platforms
• Medium-voltage switchgear, recloser, and transformer maintenance experience
• Infrared thermography experience, or experience coordinating IR thermography and electrical-testing (NETA-type) vendors
• Journeyman or master electrician license or equivalent military electrical experience
• OEM and equipment-specific certifications provided post-hire
• Prior experience as the sole or lead technician at a site
• Experience supporting utility-scale PV alongside storage, since this role backs up regional PV sites
• Familiarity with NERC GO/GOP roles and reliability-compliance recordkeeping
• Comfort pulling SCADA/EMS and breaker settings trends and data logs to support troubleshooting and reporting

How to Apply

Apply through this posting with your current resume. Our team will reach out directly to schedule a call. Please do not visit or drive to any project site, and do not contact any site owner, operator or on-site personnel about this role.

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.