Role Overview

We are seeking a skilled Service Engineer with hands-on experience in lithium battery systems and inverter technologies. The candidate will be responsible for installation, commissioning, troubleshooting, and after-sales service of lithium batteries, battery management systems (BMS), and inverter-integrated energy storage solutions.

Reports To: Service Manager / Operations Head

Key Responsibilities

Install, commission, and service lithium-ion battery packs and inverter systems at customer sites.
Conduct routine preventive maintenance, health check-ups, and testing of energy storage systems.
Diagnose and resolve technical issues related to batteries, inverters, and Battery Management Systems (BMS).
Train customers and local technicians on protected operation, handling, and maintenance of lithium batteries and inverters.
Coordinate with R&D; and Quality teams for field feedback, product improvements, and failure analysis.
Maintain service logs, prepare technical reports, and document service history.




Provide remote/telephonic customer support for troubleshooting and warranty queries.
Ensure compliance with all safety protocols, electrical standards, and company guidelines during field work.

Required Qualifications & Skills

Diploma / B.Tech in Electrical or Electronics
2–5 years of experience in servicing UPS systems, solar inverters, or ESS (Energy Storage Systems) with batteries.
Strong knowledge of DC systems, power electronics, and inverter-battery integration.
Familiarity with lithium battery safety, cell balancing, and BMS.
Ability to read technical drawings, wiring diagrams, and electrical schematics.
Excellent problem-solving skills and customer relationship management.
Willingness to travel extensively for field service and customer visits.

Preferred Experience

Hands-on knowledge of solar-hybrid and UPS inverters.
Experience in energy storage projects (residential/commercial/industrial).
Familiarity with testing tools (multimeter, clamp meter,

📌 Service Engineer (Coimbatore)
🏢 Cellex Battery Systems
📍 Coimbatore