Job Description
About Our Company Big Sun Solar provides turnkey rooftop, carport, and ground-mount solar systems to Texas businesses to help counter rising energy costs, meet corporate sustainability goals, and enhance property value. Big Sun Solar is an industry leader trusted by prominent brands, including Cavender Auto Group, Rush Enterprises and Baywood Hotels, and has helped San Antonio become 5th in the nation for most solar megawatts installed. With a passion to build a more renewable future for the next generation of Texans, Big Sun Solar is headquartered in San Antonio and serves businesses across the state. Company Purpose Big Sun Solar exists to help save the planet. Summary Big Sun Solar is seeking a skilled and self-motivated Solar PV Service Technician to join our established service team of three technicians supporting commercial & industrial (C&I) and community solar assets across Texas. This field-based role is responsible for diagnosing, troubleshooting, and resolving performance issues across a diverse portfolio of operating solar PV systems. The ideal candidate brings strong electrical and solar troubleshooting skills, the ability to work independently across multiple sites, and a commitment to maximizing system uptime and energy production for our clients. Key Responsibilities Perform scheduled and corrective maintenance on C&I and community solar PV systems, including rooftop, carport, and ground-mount configurations. Diagnose and troubleshoot system underperformance, equipment faults, and alarms using monitoring platforms, string-level data, and field testing equipment. Inspect, test, and replace failed components including inverters, combiners, fuses, disconnect switches, string wiring, and monitoring hardware. Conduct IV curve tracing, insulation resistance testing, and thermal imaging to identify module and string-level issues. Perform inverter commissioning, firmware updates, and configuration changes in coordination with manufacturers and monitoring providers. Respond to service calls and emergency dispatch across Texas; prioritize and manage workload across multiple active sites. Complete detailed service reports documenting findings, work performed, parts used, and site conditions for each visit. Coordinate with monitoring teams, utility representatives, and site contacts to restore system interconnection and resolve outage conditions. Maintain service vehicle, tools, test equipment, and spare parts inventory to ensure readiness for field dispatch. Identify recurring issues and communicate findings to the service manager to support warranty claims, vendor escalations, or engineering review. Support new system commissioning and performance verification as needed. Adhere to all OSHA safety standards, arc flash protocols, fall protection requirements, and company safety policies on every site visit. Qualifications Required: 3+ years of hands-on experience servicing or installing commercial solar PV systems. Strong working knowledge of solar PV system components including string and central inverters, combiners, DC and AC wiring, and monitoring systems. Proficiency with electrical test equipment including multimeters, clamp meters, IV curve tracers, and insulation resistance testers. Ability to read and interpret single-line diagrams, wiring schematics, and O&M documentation. Experience with major inverter platforms (e.g., SMA, Solaredge, Fronius, ABB/Fimer, Schneider, or similar). Working knowledge of NEC Article 690, OSHA standards, and safe electrical work practices including LOTO and arc flash procedures. Strong troubleshooting skills with the ability to diagnose complex system issues independently in the field. Valid Texas driver's license with a clean driving record; ability to travel statewide with overnight stays as needed. OSHA 10 certification required. Preferred: Journeyman Electrician license or progress toward licensure. NABCEP PV Installation Professional or PV Associate certification. Experience with community solar or utility-interconnected systems. Familiarity with monitoring platforms such as AlsoEnergy, PowerTrack, SolarEdge monitoring, or similar. Experience performing thermal imaging, IV curve tracing, or drone-assisted inspections. First Aid / CPR certification. Experience working with ERCOT-interconnected systems or Texas utility coordination. Skills and Competencies: Strong independent troubleshooting and diagnostic abilities in a field environment. High attention to detail