System Design Engineer

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 Benefits 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 : hr@loomsolar.com