Senior Electrical Engineer – Energy Storage / Renewable Systems

Expleo • Full-time • Chennai • 1w ago

Overview

We are seeking a Senior Electrical Engineer with strong expertise in utility-scale renewable energy and Battery Energy Storage Systems (BESS). The role involves electrical system design, commissioning support, sustaining engineering activities, and cross-functional collaboration to ensure robust, reliable, and cost-effective system performance.

The engineer will support product improvement initiatives, field issue resolution, and electrical system standardization while working closely with product development, supply chain, and project execution teams.

Responsibilities

Electrical System Design & Engineering

Lead electrical architecture design for BESS enclosures and plant-level systems.
Perform electrical design calculations including:
- Load flow analysis
- Short circuit analysis
- Protection coordination
- Arc flash analysis
Conduct power system simulations using tools such as ETAP and MATLAB.
Execute cable sizing, scheduling, and harness design.
Select electrical components such as circuit breakers, fuses, disconnectors, UPS, SMPS, sensors, etc.
Support development and update of technical specifications and procurement documentation.

Sustaining & Product Engineering

Support sustaining engineering activities including:
- System modifications
- Product upgrades
- Stabilization initiatives
Translate project-specific requirements into system and subsystem requirements within PLM systems.
Manage and release Bill of Materials (BOM) in coordination with supply chain teams.
Perform root cause analysis of field issues and support change management processes.
Develop technical application notes and design guidelines.

Cross-Functional Collaboration

Work closely with:
- Electrical and multi-disciplinary design teams
- Program and product management teams
- Supply chain and procurement teams
- Commissioning and service teams
Provide technical consultation across departments.
Support commissioning activities and system integration testing.

Qualifications

Bachelor’s or Master’s degree in Electrical Engineering.
6–10 years of experience in electrical system design.
Minimum 1+ year experience in grid-tied BESS, large-scale renewable, or commercial PV systems.

Essential skills

Strong experience in:
- Power system studies (load flow, short circuit, protection coordination)
- Electrical equipment selection
- Cable sizing and scheduling
- BOM management
Hands-on experience with ETAP, MATLAB (or similar simulation tools).
Knowledge of applicable standards:
- NEC, NESC
- IEEE standards
- IEC standards
- UL certification requirements
Understanding of grid interconnection standards (US or European codes preferred).
Exposure to PLM systems and configuration management practices.
Experience working in multi-disciplinary and global teams.
Strong written and verbal English communication skills.