Lead Field Service Technician – PV/BESS

Job Summary

We are hiring a Lead PV / BESS Master Technician with proven field authority, advanced troubleshooting capability, and the ability to lead commissioning and service execution on complex renewable energy systems. This position is built for a high-level field professional who can own technical performance from installation turnover through energization, commissioning, troubleshooting, remediation, and long-term operational reliability.

Primary Responsibilities

• Serve as the technical field lead for solar PV and BESS commissioning, service, troubleshooting, corrective maintenance, and remediation
• Lead field crews, direct technical workflow, and enforce workmanship standards
• Execute cold commissioning, hot commissioning, functional testing, startup, energization, and performance verification
• Troubleshoot live DC and AC electrical systems under field conditions
• Diagnose and resolve inverter faults, production losses, communication failures, protection issues, and control integration problems
• Validate installation quality against drawings, single-line diagrams, OEM documentation, and commissioning procedures
• Interface directly with owners, utilities, AHJs, EPCs, OEMs, engineers, and commissioning authorities
• Produce detailed turnover packages, commissioning reports, punch lists, corrective action reports, and deficiency documentation
• Support project closeout, warranty investigations, recommissioning, and operational performance optimization

PV Master Technician — Required Technical Competencies

• Advanced knowledge of commercial and utility-scale PV systems
• Full understanding of:
• String inverter systems
• Central inverter systems
• MLPE systems
• DC collection systems
• AC collection systems
• Transformer and switchgear integration
• Protection and interconnection architecture
• Advanced Electrical Troubleshooting
• Must be capable of independently diagnosing ground faults, arc faults, insulation resistance failures, current mismatch, voltage imbalance, string underperformance, clipping and curtailment issues, failed terminations, polarity errors, nuisance trips, communication loss, intermittent production faults, etc.
• Test Equipment Proficiency
• Must have hands-on field experience with digital multimeters, clamp meters, IV curve tracers, insulation resistance testers (Megger), thermal imaging cameras, continuity and polarity testing equipment, torque verification tools
• Must be able to interpret test data, not simply perform the tests.
• Inverters / Power Conversion
• Hands-on commissioning, startup, troubleshooting, and service experience with string inverters, central inverters, microinverters, DC optimizers
• Must be able to diagnose fault codes, firmware upgrades, parameter configuration, protection verification, grid support function setup, inverter replacement and recommissioning
• Mining / SCADA / Communications
• Hands-on experience configuring and troubleshooting Ethernet networks, fiber communications, cellular gateways, RS-485, Modbus TCP, Modbus RTU, remote monitoring platforms, data acquisition systems, inverter telemetry validation, communications fault isolation
• Battery Energy Storage Systems (BESS)
• Strong working knowledge of AC-coupled and DC-coupled architecture, PCS (Power Conversion System), BMS (Battery Management System), EMS (Energy Management System), SCADA integration, battery racks and containerized systems, control and protection interfaces, functional startup logic, fault isolation and safe shutdown procedures
• Prefered for storage systems
• Safety & Compliance
• Working knowledge of OSHA, NFPA 70E, lockout/tagout, arc-flash practices, fall protection, job hazard analysis, NEC Article 690, NEC Article 705, NEC Article 706, basic familiarity with NFPA 855 and UL 9540 / 9540A
• Leadership Expectations
• The Lead PV / BESS Master Technician is expected to:
• lead crews in the field
• mentor junior technicians
• identify issues before they become delays
• maintain technical discipline during commissioning
• communicate clearly with field management and clients
• make sound technical decisions without escalation
• protect schedule, quality, and system performance

Required Experience

• 5+ years of hands-on commercial or utility-scale PV field experience
• Proven lead technician, commissioning technician, or senior service technician experience
• Proven success diagnosing live system failures
• Able to work independently under field pressure
• Able to travel to project sites

Preferred Qualifications

• NABCEP PV Installation Professional
• NABCEP PV Commissioning & Maintenance
• OSHA 10 / 30
• NFPA 70E
• Manufacturer certifications: SMA, SunPower, SolarEdge, Enphase, Tesla, Fluence, Powin, Sungrow
• Examples of major troubleshooting work personally completed