BESS Engineering (Utility, C&I;)
Role Summary
The Engineering Manager for Utility & Industrial Battery Energy Storage Systems (BESS) is responsible for defining system architecture, ensuring product performance, managing technical requirements, and supporting engineering teams throughout the lifecycle of large-scale BESS products. The role bridges product management, engineering, certification, and customer application teams to deliver reliable and cost-optimized energy storage solutions.
Key Responsibilities
1. System Architecture & Design
Define end-to-end BESS system architecture including PCS, battery racks, protection, controls, thermal systems, fire safety, auxiliaries, and SCADA integration.
Develop system sizing models, performance simulations, and grid-integration assessments.
Create and maintain System Requirements Specifications (SRS), Interface Control Documents (ICDs), and system design documents.
Evaluate design options for containerized, modular, or skid-based BESS platforms.
2. Product Development & Engineering Support




Work closely with R&D; teams to translate product requirements into subsystems (battery, PCS, EMS, HVAC, fire suppression, wiring harness, structural components).
Own the system BoM, configuration rules, and product variants.
Validate subsystem integration with hardware, firmware, and controls engineering.
Coordinate with electrical, mechanical, firmware, and safety engineers for design reviews.
3. Performance & Compliance
Ensure the BESS meets UL 9540, IEC 62933, UL 1973, IEC 62109, IEEE 1547, and local grid code requirements.
Support thermal modeling, cycle life estimation, electrical protection coordination, and control tuning.
Conduct FMEA, safety hazard analysis, arc-flash study, and reliability assessments.
Work with certification agencies and testing labs for compliance audits.
4. System Testing & Validation
Define test plans for FAT, SAT, subsystem testing, container-level testing, and grid functional tests.
Support commissioning

📌 Electrical Design Engineer (Bengaluru)
🏢 LT-Larsen & Toubro
📍 Bengaluru