BESS Service Engineer
Location: Coimbatore
Job Type: FTC /Direct Contract
Job Summary
The BESS Service Engineer is responsible for commissioning support, preventive maintenance, troubleshooting, diagnostics, and corrective maintenance of Battery Energy Storage Systems. The role involves working with battery systems, PCS/Inverters, MV/LV equipment, EMS/SCADA systems, HVAC, Fire Suppression Systems, and ensuring maximum system availability and safety.
Key Responsibilities
Installation & Commissioning Support
Support installation and commissioning of BESS projects.
Perform pre-commissioning checks and site acceptance tests.
Verify battery racks, PCS, transformers, switchgear, EMS, and auxiliary systems.
Coordinate with EPC contractors, OEMs, and customers during commissioning.

Preventive Maintenance
Conduct routine inspection and preventive maintenance activities.
Check battery health parameters including:
Cell Voltage
String Voltage
SOC
SOH
Temperature
Insulation Resistance
Inspect HVAC, fire protection, and safety systems.




Prepare maintenance reports and service documentation.

Fault Diagnosis & Troubleshooting
Diagnose and rectify faults in:
Battery Packs
BMS (Battery Management System)
PCS/Inverter
EMS
SCADA
MV/LV Switchgear
Transformer Systems
Analyze alarms and event logs.
Coordinate with OEM technical teams for complex issues.

Performance Monitoring
Monitor plant performance remotely and on site.
Analyze charging/discharging performance.
Evaluate system efficiency and Round Trip Efficiency (RTE).
Recommend corrective and optimization measures.

Safety & Compliance
Follow electrical safety standards and LOTO procedures.
Ensure compliance with local regulations and OEM guidelines.
Conduct toolbox talks and safety audits.
Support incident investigations and root cause analysis (RCA).

Customer Support
Provide technical support to customers.
Participate in warranty claim assessment.
Conduct trai

📌 Bess Service Engineer Bengaluru
🏢 LT-Larsen & Toubro
📍 Bengaluru