Field Services Engineer

BESS Field Service Engineer - Location site Trenton, MI

LG Energy Solution Vertech, Inc. (LGES Vertech) is a full-service energy storage system supplier and integrator. Using our core strengths of expert service to our customers, unparalleled safety, and excellence in manufacturing, we bring standardized, fully integrated energy storage systems to a rapidly growing worldwide market. Our systems address our customers' needs to reduce capital equipment and installation costs while enhancing system level performance and reliability using automated monitoring systems and analytics across the battery, power conditioning and auxiliary systems.

Our AEROS® energy operating system is the engine of innovation to provide advanced control functions allowing our customers to maximize the value of their energy storage assets. Our service capabilities include advanced monitoring and analytics, scheduled maintenance, augmentation, and auxiliary system upgrades. The combination of excellence in battery technology and production coupled with nearly two decades of energy storage integration makes LGES Vertech a leading supplier and integrator in the power and energy markets.

LGES Vertech is a highly matrixed, team-oriented organization that fosters cross functional collaboration and innovation. The company seeks high caliber candidates with proven experience and with characteristics that embody our corporate commitment to the virtues of humble, hungry and smart in all we do. Our diverse and growing team enjoys competitive salaries and generous benefits, including 100% employer sponsored medical, dental, vision, life and disability insurance.

For more information about LGESVT, please visit

The BESS Field Service Engineer (FSE) is responsible for performing field service activities on Battery Energy Storage Systems (BESS) and associated equipment from installation/commissioning through warranty and long‑term O&M support. The FSE executes preventive and corrective maintenance, supports troubleshooting and upgrades, and works closely with Senior Field Service Engineers, site teams, subcontractors, and customers to ensure safe, high‑quality service delivery.

This role is a hands‑on technical position with growth opportunities toward Senior Field Service Engineer, Site Lead, or Service Operations roles.

• Own availability and service‑level commitments (SLAs) for assigned sites during service activities, ensuring safe execution, timely restoration, accurate communication, and proper documentation to support contractual performance.
• Perform preventive and corrective maintenance activities on BESS and ancillary equipment in accordance with approved procedures and safety standards.
• Support troubleshooting, repairs, component replacement, and system restoration activities under guidance from Senior FSEs or Service Engineering when required.
• Support software and firmware upgrades and routine system checks.
• Accurately document work performed, observations, and findings in service tools/work orders.
• Support service readiness activities for sites transitioning into long‑term O&M (tools, spares, access, and onboarding support as assigned).

• Provide remote technical support and basic troubleshooting assistance using virtual tools (phone, Teams, Web Ex, or similar).
• Support customer and contractor education on basic equipment operation, response expectations, and routine maintenance tasks.
• Participate in after‑hours on‑call support on a rotation basis.
• Utilize CMMS and digital service platforms (e.g., Soft Wrench, SAP, Salesforce) to complete work orders, track issues, and document service activities.
• Contribute field observations and lessons learned to support improvements in procedures, troubleshooting guides, and training material.
• Support root‑cause investigations by collecting data, logs, and observations as directed.
• Support the product return and technical support process as needed.
• Work collaboratively with Senior FSEs, Service Engineering, site teams, and authorized service providers to…