Job SummaryWe are seeking an experienced, hands-on Hybrid Inverter Field Technician to lead residential energy storage installations, commissioning, and on-site diagnostics. The ideal candidate brings deep practical expertise in residential hybrid inverters, lithium-ion/LiFePO4 battery systems, household electrical circuit mapping, and local electrical safety compliance. You will work directly in the field—both executing complex technical tasks independently and supervising an accompanying electrician—to ensure every inverter-battery assembly is safely wired, optimally configured, and functioning at peak reliability.

Key Responsibilities

1. Field Installation & Supervision

- Lead and supervise the end-to-end physical and electrical installation of residential hybrid inverter and lithium battery assemblies alongside an assisting electrician.
- Inspect, trace, and understand existing ("native") household electrical circuit layouts, distribution boards (DBs), earthing pits, and load segregation (essential vs. non-essential loads) prior to installation.
- Design and execute clean AC/DC circuit integration, ensuring proper sizing and installation of MCBs, MCCBs, AC/DC SPDs (Surge Protection Devices), isolators, and busbars.
- Enforce strict adherence to national/local electrical codes, earthing standards, and workplace safety protocols across every job site.

2. Inverter Commissioning & Parameter Configuration

- Configure inverter operating modes (e.g., SBU, SUB, zero-export/CT sensor setup) tailored to customer energy goals and local grid conditions.
- Set accurate charging/discharging profiles, voltage cutoffs,



and BMS (Battery Management System) communication protocols (CAN/RS485) between hybrid inverters and lithium battery packs.
- Verify solar PV string voltages, MPPT tracking, load balancing, and automatic grid-to-battery changeover times before handing over the system.

3. Diagnostics, Troubleshooting & Maintenance

- Independently assess, diagnose, and resolve faults in existing residential electrical systems, inverter hardware, PV strings, and lithium battery banks.
- Use diagnostic instruments (clamp meters, multimeters, insulation testers, earth resistance testers) to pinpoint issues such as neutral-earth voltage faults, ground loops, nuisance tripping, BMS communication errors, or inverter fault codes.
- Perform corrective rewiring, firmware updates, component replacements, and preventative maintenance visits to restore system performance with minimal customer downtime.

4. Documentation & Customer Handover

- Complete post-installation commissioning checklists, single-line diagrams (SLDs) of modified circuits, and service reports.
- Educate homeowners on basic inverter display monitoring, mobile app usage, emergency shutdown procedures, and routine safety practices.
- Required Qualifications & SkillsEducation / Certification:



ITI / Diploma in Electrical Engineering, or licensed Electrician / Wireman certification with specialized solar/storage experience.
- Experience: Minimum 3–5 years of hands-on field experience installing and troubleshooting residential hybrid solar inverters (e.g., Deye, Sunsynk, Growatt, Victron, Techfine, Luminous, or similar) and 48V/high-voltage lithium battery banks.
- Circuit & System Mastery: Robust ability to read and trace residential wiring, separate critical backup circuits from heavy non-backup loads, and calculate load/wire/breaker sizing accurately.
- Battery & BMS Expertise: Practical knowledge of LiFePO4 battery safety, parallel bank balancing, pre-charge procedures, and BMS communication pinouts (RS485/CAN).
- Safety Compliance: Thorough understanding of AC/DC arc-flash hazards, dedicated AC/DC earthing requirements, lightning protection, and statutory electrical safety regulations.
- Problem-Solving: Proven ability to troubleshoot complex electrical anomalies independently on-site without constant remote supervision.
- Leadership & Mobility: Comfortable directing an assistant electrician on-site, communicating clearly with homeowners, and traveling daily to residential sites (valid two-wheeler/four-wheeler driving license preferred).
- Preferred QualificationsExperience configuring Wi-Fi/GPRS data loggers and remote monitoring portals.
- Familiarity with net-metering/bi-directional meter wiring and local utility inspection standards.
- Prior experience handling warranty diagnostics and RMA documentation with inverter/battery OEMs.

📌 Hybrid Inverter Field Technician (Bengaluru)
🏢 Unspritz Consultancy Private
📍 Bengaluru