Service Engineer - EV Chargers

Key Responsibilities

1. Customer and Field Support

 Provide on-site and remote technical support for EV chargers and associated charging systems.

 Attend customer complaints promptly, establish immediate containment, and drive issues to technical closure

within the committed turnaround time.

 Act as the technical point of contact for customer escalations and communicate findings, corrective action,

and preventive recommendations clearly.

 Coordinate site visits, customer access, service tools, spares, and replacement units to ensure efficient issue

resolution.

 Provide basic operational, installation, and troubleshooting training to customers, service partners, and field

technicians.

 Follow applicable electrical safety and EHS practices during installation, testing, repair, and site visits.

2. Installation and Commissioning

 Support installation, commissioning, configuration, and functional validation of chargers at customer locations.

 Verify input supply, earthing, protection devices, cable routing, connectors, communication interfaces, and

charger-to-battery compatibility before commissioning.

 Document commissioning results, site observations, deviations, and customer acceptance.

3. Troubleshooting, Repair and Validation

 Diagnose electrical, electronic, communication, thermal, and performance-related failures reported from the

field.

 Inspect and troubleshoot returned chargers using structured fault-isolation methods and appropriate test

equipment.

 Carry out approved repairs, component replacement, wiring correction, or software and configuration updates

as required.

 Validate repaired chargers under appropriate load and operating conditions before customer dispatch or

reinstallation.

 Identify and document "no fault found" cases, including installation, battery, vehicle, usage, or environmental

causes.

 Maintain traceability of serial numbers, failure symptoms, root causes, repairs, replaced parts, and final

validation results.

4. Root-Cause Analysis and Product Improvement

 Perform structured Root-Cause Analysis (RCA) and Failure Analysis (FA) for field returns and major customer

complaints.

 Prepare RCA, 8D, and Corrective and Preventive Action (CAPA) reports for recurring or critical failures.

 Analyze field-failure trends and identify repeat, systemic, or supplier-related issues.

 Coordinate with Production, Quality, R&D, Purchase, and suppliers to implement containment, corrective

action, and preventive action.

 Provide field feedback for design, process, component, firmware, test, and workmanship improvements.

 Verify the effectiveness of corrective actions and monitor recurrence after implementation.

5. Warranty, Spares and Service Operations

 Track warranty claims, repair status, replacements, service closure, and customer communication.

 Maintain a structured complaint tracker and service database with accurate and timely updates.

 Monitor response time, repair turnaround time, first-time-fix rate, repeat-failure rate, and complaint ageing.

 Coordinate spare-parts planning, inventory, consumption, replenishment, and replacement management.

 Ensure returned chargers and defective parts are correctly identified, stored, and controlled for analysis or

supplier return.

 Support warranty-cost analysis and initiatives to reduce service and failure-related costs.

6. Documentation and Training

 Prepare service reports, failure-trend analysis, and weekly or monthly KPI summaries.

 Develop and maintain service SOPs, troubleshooting guides, installation and commissioning checklists, repair

procedures, and validation records.

 Create customer-facing technical advisories and frequently asked questions for common issues.

 Train internal service personnel, customer teams, and field technicians on charger operation, safety,

installation, and troubleshooting.

Technical Knowledge and Skills

Must-have

 Hands-on electrical and electronic troubleshooting experience with EV chargers, battery chargers, power

supplies, UPS systems, inverters, motor controllers, or other power-electronic products.

 Understanding of EV battery-charging systems, lithium-ion and LFP batteries, charger operating principles,

and CC/CV charging profiles.

 Basic understanding of Battery Management Systems (BMS) and charger-to-BMS interaction.

 Ability to read electrical schematics, wiring diagrams, connector pinouts, and basic circuit diagrams.

 Ability to diagnose input/output voltage and current faults, reverse polarity, over-voltage, under-voltage, short-

circuit, over-current, earthing, insulation, leakage-current, thermal, cable, connector, relay, fuse, and contactor

issues.

 Working knowledge of Root-Cause Analysis, Failure Analysis, CAPA, and service documentation.

 Comfortable using electrical test equipment and working safely around mains-powered and battery-connected

systems.

 Working knowledge of Microsoft Excel, Word, and PowerPoint for reporting and analysis.

Good to have

 Basic knowledge of CAN communication and experience using a CAN analyzer.

 Knowledge of RS-485, Modbus, networking, or OCPP for public charging applications.

 Basic soldering and component-level diagnosis or repair experience.

 Exposure to product validation, supplier quality, or production improvement.

Test Equipment

Digital multimeter Clamp meter Electronic load

Programmable DC supply Oscilloscope CAN analyzer

Insulation tester Earth / continuity tester Electrical service tools

Qualifications and Experience

 Diploma or B.E./B.Tech in Electrical Engineering, Electronics Engineering, Electronics and Communication,

Instrumentation, Power Electronics, or a related discipline.

 Preferably 2-5 years of experience in field service, customer support, repair, testing, commissioning, or

quality.

 Experience with EV chargers or related power-electronic products is preferred; strong troubleshooting

experience from adjacent industries may also be considered.

 Willingness to travel to customer and installation locations within NCR and other regions, including urgent

service visits when required.

 A valid driving licence is preferred.

 Ability to communicate effectively in Hindi and English.

LOCATION

Noida, Uttar Pradesh

EXPERIENCE

2-5 years preferred

QUALIFICATION

Diploma / B.E. / B.Tech

PRODUCT RANGE

500 W-6.6 kW chargers; public chargers up to 10 kW

TRAVEL

NCR and other customer locations, as required

DEPARTMENT

Customer Service / Quality

REPORTING TO

Head - Service / Quality / Operations