1. System Architecture
• Develop complete system architecture for:
• Solar PV systems
• Grid-connected solar systems
• Hybrid solar + battery systems
• Residential energy storage systems
• Commercial & industrial BESS
• Solar + BESS + grid systems
• Backup power systems
• EV charging + solar + storage systems
• Define system voltage, current, power, energy and communication architecture.
• Develop system block diagrams and functional architectures.
• Define interfaces between PV modules, inverter, battery, BMS, EMS, grid and loads. 2. Solar PV System Design
• Design PV systems from module level to complete system level.
• Perform:
• String sizing
• DC/AC ratio calculations
• MPPT configuration
• Voltage/current calculations
• Cable sizing
• Protection selection
• Earthing and SPD design
• System efficiency calculations
• Develop designs for residential, C&I;, utility and specialized applications.
• Evaluate module, inverter and BOS compatibility. 3. Inverter System Design Work with engineering teams to develop:
• On-grid/grid-tied inverters
• Hybrid inverters
• Off-grid inverters
• Battery PCS
• Bidirectional converters
• DC-DC converters
• AC-DC/DC-AC power conversion systems Responsibilities include:
• Define electrical architecture.
• Select power semiconductors and major components.
• Develop power-flow architecture.
• Define MPPT and power-conversion requirements.
• Define protection architecture.
• Support control strategy development.
• Work with firmware/control engineers on functional requirements.
• Support thermal and reliability design. 4. BESS System Design Design BESS solutions from 1 kWh to 1 MWh+. Responsibilities include:
• Battery pack architecture
• Cell selection
• Module and rack architecture
• Series/parallel configuration
• Voltage and capacity calculations
• BMS architecture
• PCS selection/integration
• EMS integration
• DC protection




• AC protection
• Thermal management
• Fire and safety architecture
• Communication architecture
• Containerized BESS architecture Develop complete system-level designs for: Cell → Module → Pack → Rack → BESS → PCS → EMS → Grid/Load 5. Battery & BMS Engineering
• Define battery chemistry and cell requirements.
• Calculate usable and nominal energy.
• Define C-rate requirements.
• Calculate charge/discharge current.
• Work with BMS engineers on:
• SOC
• SOH
• Cell balancing
• Over-voltage protection
• Under-voltage protection
• Over-current protection
• Over-temperature protection
• Short-circuit protection
• Define BMS communication requirements with inverter/PCS and EMS. 6. Thermal Engineering
• Perform thermal calculations for:
• Inverters
• Battery packs
• BESS racks
• Power electronics
• Define cooling architecture.
• Work with mechanical engineers on:
• Air cooling
• Liquid cooling
• Heat sinks
• Fans
• HVAC
• Thermal interface materials
• Identify thermal hotspots and develop mitigation plans. 7. Electrical Protection & Safety Develop system protection architecture including:
• Fuse
• MCB/MCCB
• DC isolator
• Contactor
• Relay
• SPD
• Pre-charge circuit
• Ground fault protection
• Over-voltage protection
• Over-current protection
• Short-circuit protection
• Emergency shutdown Ensure designs consider applicable Indian and international standards. 8. System Simulation & Calculations Perform engineering calculations and simulations for:
• Power flow




• Voltage/current
• Efficiency
• Thermal performance
• Battery sizing
• PV generation
• Energy yield
• Load profile
• Battery degradation
• Backup duration
• Peak shaving
• Energy arbitrage
• Solar self-consumption
• Grid interaction Use appropriate engineering tools such as MATLAB/Simulink, PSpice/LTspice, ETAP, AutoCAD Electrical or equivalent tools, depending on the role. 9. Product Development Support Work closely with:
• R&D;
• NPD
• Firmware
• Electronics
• Mechanical
• Manufacturing
• Quality
• Procurement
• Testing
• Service
• Sales to take products from: Requirement → Architecture → Design → Prototype → Testing → Certification → Production → Field Deployment Requirements Candidates from the following industries are preferred:
• Solar inverter manufacturers
• Solar module manufacturers
• BESS manufacturers
• Battery companies
• EV/EV charging
• Power electronics
• UPS
• Industrial automation
• Renewable energy
• Electrical equipment
• Energy storage
• Power conversion systems Experience with companies working on inverters, PCS, BESS, battery packs, solar systems or power electronics will be an advantage. Educational Qualification Essential:
• B.
Tech / B.
E. in Electrical Engineering
• Electronics & Communication Engineering
• Power Electronics
• Electrical & Electronics Engineering Preferred:
• M.
Tech in Power Electronics / Electrical Engineering
• Experience in renewable energy or energy storage Advantages Work Timing : 10:00 am to 7:00 pm (Monday to Saturday)

Education:
BBA/Bcom/Btech Address : Loom Solar Pvt Ltd (14/4 Mathura Road, Faridabad 121003) Contact : Muskan Singh Gender : Male / Female Job Type : Full Time Job

Location:
Faridabad Industry Type : Renewable Solar Energy Pay Types : Fix Pay and Performance Incentives Support : [email protected]

📌 System Design Engineer (India)
🏢 LOOM SOLAR
📍 India