Solar Design & Technical Engineer – Solar & BESSLocation: Mumbai, MaharashtraEmployment Type: Full-TimeSalary: ₹35,000 – ₹40,000 per monthIndustry: Solar EPC / Renewable Energy / Energy StorageAbout the RoleBRIVIN Solar is building a centrally managed Solar EPC business focused on residential and commercial solar installations, with growing capabilities across Solar PV, hybrid systems and Battery Energy Storage Systems (BESS).We are looking for a Solar Design & Technical Engineer who can take technical ownership of both Solar PV and battery energy storage system design.This is not simply a drafting or AutoCAD role. The person should be technically sound, understand customer energy requirements, design appropriate solar and battery systems, select equipment, prepare engineering drawings and BOMs, and provide technical support through installation and commissioning.Key Responsibilities1. Solar PV Design & EngineeringDesign residential and commercial rooftop Solar PV systems.Analyze electricity bills, load requirements, consumption patterns and available site area.Determine appropriate plant capacity based on technical and customer requirements.Prepare module layouts, string configurations and inverter sizing.Prepare Single Line Diagrams (SLDs), electrical drawings and system architecture.Conduct or review shading analysis and energy-generation estimates.Prepare detailed project-wise Bill of Materials (BOM).Optimize system designs for performance, safety, reliability and project economics.2. Battery Energy Storage System (BESS) DesignDesign battery storage solutions for residential and commercial applications.Analyze load profiles, critical loads, peak demand and required backup duration.Calculate battery capacity considering load, autonomy, efficiency, Depth of Discharge (DoD) and operating requirements.Design Solar + BESS, hybrid and backup power configurations.Understand battery technologies and chemistries, particularly Lithium-ion/LFP systems.Size and select batteries, hybrid inverters, PCS and associated electrical equipment.Ensure compatibility between Solar PV, inverter/PCS, battery, BMS and the customer's electrical system.Prepare BESS system architecture,



technical specifications, drawings and BOMs.Evaluate different battery and energy-storage products from a technical perspective.3. Site Feasibility & Technical AssessmentReview site survey data, roof dimensions, electrical infrastructure and load requirements.Identify technical constraints before finalizing project design.Coordinate with site teams for measurements and additional technical information.Participate in site visits where technical assessment is required.Recommend suitable system configurations based on site and customer requirements.4. Equipment Selection & EngineeringEvaluate solar modules, string/hybrid inverters, batteries, PCS, mounting structures and BOS components.Review manufacturer datasheets and ensure compatibility between components.Perform cable sizing, protection selection, earthing requirements and other relevant electrical calculations.Develop standardized configurations for commonly offered Solar and Solar + BESS systems.Support procurement teams with technical evaluation of products, vendors and alternatives.5. Project Execution & Commissioning SupportWork closely with the EPC Operations & Project Coordinator and on-field teams.Release approved drawings, BOMs and technical documentation before project execution.Provide technical clarification to installation teams during execution.Review design changes required due to actual site conditions.Support testing, troubleshooting and commissioning of Solar PV and BESS installations.Review completed installations against approved designs and technical standards.6. Technical Standards & DocumentationHelp develop BRIVIN Solar's internal design standards, engineering SOPs and technical checklists.Build standardized designs and BOMs for frequently installed system capacities.Maintain drawings, calculations,



equipment datasheets and project technical records.Stay updated with developments in Solar PV, hybrid inverter, battery storage and energy-management technologies.Candidate ProfilePrior hands-on experience in Solar PV system design, renewable-energy engineering or related technical work.Practical understanding of residential and/or commercial rooftop Solar PV systems.Exposure to battery sizing, BESS, hybrid systems or energy-storage applications is strongly preferred.Strong understanding of electrical SLDs, system sizing, cable sizing, protection and earthing.Understanding of lithium-ion/LFP batteries, BMS, hybrid inverters and/or PCS systems is preferred.Experience preparing technical drawings, BOMs and equipment specifications.Working knowledge of AutoCAD and relevant engineering/design tools.Familiarity with PVsyst, HelioScope, SketchUp or similar Solar design/simulation software is an advantage.Solid analytical, technical and problem-solving ability.B.E./B.Tech/Diploma in Electrical, Electronics, Energy, Renewable Energy or a related engineering discipline is preferred.What We Are Looking ForWe are looking for someone who is more than a Solar CAD designer.The ideal candidate should be capable of understanding a customer's energy requirements and thinking through the complete technical solution:Load Analysis → Solar Capacity → Battery Requirement → Inverter/PCS Selection → System Architecture → BOM → Installation RequirementsWe value practical technical knowledge and problem-solving ability over years of experience alone.The candidate should also have an interest in emerging battery and energy-storage technologies and be willing to develop deeper expertise across both Solar PV and BESS as the business grows.Growth OpportunityThis role will be part of the early technical team building BRIVIN Solar's engineering capabilities.As the business expands into larger commercial projects, energy storage and distributed energy solutions, the role can develop into broader responsibilities across Solar Engineering, BESS Design, Technical Standards and Renewable Energy System Design.

📌 Solar Design & Technical Engineer – Solar & Bess (Maharashtra)
🏢 MANOJA RETAIL INDUSTRIES
📍 Maharashtra