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Test Engineer - BESS

Date Posted: Jul 27, 2026

Job Detail

  • location_on
    Location Coimbatore, Tamil Nadu, India
  • desktop_windows
    Job Type: Full Time/Permanent
  • schedule
    Shift:
  • analytics
    Career Level:
  • group
    Positions:
  • calendar_view_day
    Experience:
  • male
    Gender: No Preference
  • school
    Degree:
  • calendar_month
    Apply Before: Nov 15, 2026

Job Description

Role Summary

Responsible for validation, testing, and commissioning of Battery Energy Storage Systems (BESS) at component, pack, and container level. Ensures system performance, safety, and compliance with applicable standards.

 

Key Responsibilities

1. Testing & Validation

  • Develop and execute test plans for: 
    • Battery packs (Li-ion, LFP, etc.) 
    • BMS (Battery Management System) 
    • PCS (Power Conversion System) 
    • Complete BESS containers 
  • Perform electrical, thermal, functional, and safety testing 
  • Conduct FAT (Factory Acceptance Test) and SAT (Site Acceptance Test) 

2. System Integration Testing

  • Validate interfaces between battery, BMS, PCS, EMS, and SCADA 
  • Test communication protocols (CAN, Modbus, Ethernet) 
  • Perform charge-discharge cycle testing and efficiency validation 

3. Compliance & Standards

  • Ensure testing as per standards like: 
    • IEC / UL / BIS relevant to BESS 
  • Support certification processes and documentation 

4. Data Analysis & Reporting

  • Analyze test data and identify performance gaps 
  • Prepare detailed test reports and failure analysis 
  • Suggest corrective actions and design improvements 

5. Troubleshooting & Root Cause Analysis

  • Diagnose issues in battery systems, wiring, control logic 
  • Work closely with design, quality, and production teams 

6. Test Infrastructure Setup

  • Define and set up test benches, load banks, cyclers 
  • Support automation of testing where applicable 

 

Qualifications

  • B.E / B.Tech / Diploma in Electrical / Electronics / Mechatronics 
  • 3–8 years experience in BESS, EV, battery, or power electronics testing 

 

Required Skills

  • Strong understanding of: 
    • Lithium-ion batteries & BMS 
    • Power electronics & inverters 
  • Hands-on with: 
    • Battery cyclers, HV testing equipment 
    • Data acquisition systems 
  • Knowledge of: 
    • CAN tools, Modbus tools 
    • Safety practices for high voltage systems

Job details

  • Business: L&T Precision Engineering & Systems IC
  • Location: Coimbatore Campus, Tamil Nadu
  • Experience: 3-8 years
  • CTC range: ₹4,00,000 – ₹10,99,999 a year
  • Skills: Testing Products

Source: Larsen & Toubro careers — Read the original posting and apply

This role is listed by the employer on its own careers site. Kaam Ki Khoj does not process applications for it.

Company Overview

Larsen & Toubro
Larsen & Toubro · Mumbai, Maharashtra, India
799 open roles

Larsen & Toubro is an employer in the Construction/Engineering sector with operations in India. This is a directory listing maintained by Kaam Ki Khoj so that candidates can find the organisation; it is not an official company page and Kaam Ki Kh... Read More

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