Job Summary

We are looking for an Electrical Design Engineer with 3–7 years of relevant experience in EV charging infrastructure, electrical system design, power distribution, PDU development, or HV/LV electrical systems.

The candidate will be responsible for designing the complete electrical architecture of EV charging stations, from utility/grid input to individual chargers, including power distribution, protection systems, PDU design, HV/LV panels, switchgear, electrical calculations, layouts, and detailed design documentation.

Key Responsibilities

- Design complete electrical architecture for EV charging stations, from utility/grid input to individual chargers.

- Develop power distribution schemes for multiple EV chargers at a single location.

- Perform electrical calculations for

- Connected load, maximum demand, diversity & demand factors

- Voltage drop and short-circuit/fault current

- Cable and busbar sizing

- MCB/MCCB/ACB/fuse selection

- Earthing & grounding

- Power factor and reactive power

- Transformer and DG capacity

- Thermal loading and derating

- Develop Single-Line Diagrams (SLDs), electrical schematics and wiring diagrams.

- Design and develop Power Distribution Units (PDUs) for EV charging applications.

- Design/specify HV/LV panels, switchboards, switchgear, busbars, breakers, contactors, isolators, protection devices and metering systems.

- Develop electrical layouts, panel layouts, cable routing, cable schedules, termination details and interconnection drawings.

- Ensure proper segregation and protection of HV, LV, control and communication circuits.

- Coordinate electrical design with mechanical, civil, charger, controls and electronics teams.

- Review designs for safety, reliability, maintainability, manufacturability and applicable standards.

- Prepare technical specifications, BOMs, schematics and design documentation.





- Support component selection and supplier interactions for panels, switchgear, cables, connectors and protection devices.

- Support installation, commissioning, troubleshooting and resolution of electrical design issues.

- Review existing installations and recommend improvements for capacity expansion and future charger additions.

Required Technical Skills

- Bachelor’s degree in Electrical & Electronics Engineering (EEE), Electrical Engineering, or equivalent.

- 3–7 years of relevant experience in electrical design, EV charging infrastructure, industrial electrical systems, power distribution, PDU development or similar applications.

- Good understanding of EV charging systems and charging station electrical architecture.

- Strong knowledge of grid-to-charger power distribution and multi-charger installations.

- Experience in sizing

- Cables and wires

- Busbars

- Switchgear and protection devices

- Panels and PDUs

- Transformers

- Earthing systems

- Power distribution equipment

- Knowledge of HV/LV systems, switchgear, panel boards and protection systems.

- Experience in PDU design and development, preferably in automotive, EV or industrial applications.

- Experience with HV panel board and switchgear design/development.

- Understanding of electrical protection coordination and basic selectivity/discrimination.

- Good knowledge of electrical safety, isolation, earthing and fault protection.

- Knowledge of relevant IEC/IS and applicable EV charging/electrical installation standards.





- Ability to read and develop electrical schematics, SLDs and wiring diagrams.

Design Software

Practical experience with

- SolidWorks – 3D modelling and mechanical/electrical packaging of panels, PDUs and components.

- AutoCAD Electrical, EPLAN or equivalent electrical design/layout tools.

- Microsoft Excel for electrical calculations, sizing and load analysis.

- Familiarity with electrical simulation/calculation tools is an added advantage.

Preferred Experience

- Experience with AC and DC EV charging systems, including high-power charging.

- Experience designing infrastructure for multiple chargers at a single site.

- Experience with HT/LT distribution systems, transformers, APFC systems, MDBs, SMDBs, MCCs and distribution panels.

- Experience with HV cable selection, termination and routing.

- Knowledge of energy metering, protection relays, surge protection and power quality.

- Experience in automotive, EV, industrial automation, renewable energy or power electronics.

- Exposure to site installation, commissioning and electrical troubleshooting.

Key Competencies

- Strong analytical and electrical calculation skills.

- Ability to convert system-level power requirements into practical electrical architecture.

- Solid understanding of electrical safety and design standards.

- Good technical documentation and communication skills.

- Ability to work independently and coordinate with cross-functional teams.

- Practical approach to design, component selection, cost optimization and manufacturability.

- Ability to own electrical design from concept → calculations → SLD/schematic → detailed design → prototype/panel development → installation → commissioning.

Experience

3–7 years of relevant experience

Education

BE/B.Tech – Electrical / Electrical & Electronics Engineering or equivalent

📌 AH_101 - Electrical Design Engineer (Bengaluru)
🏢 Marutee
📍 Bengaluru