Technical Field Service Engineer (Residential & C&I)

Technical Field Service Engineer - Solar PV & BESS (Residential & C&I)

Position Summary

The Technical Field Service Engineer is responsible for providing high-quality technical support and customer service for Solar Photovoltaic (PV) and Battery Energy Storage System (BESS) solutions across Residential and Commercial & Industrial (C&I) projects. The role involves commissioning, maintenance, troubleshooting, repair, technical training, and system performance optimization.

The successful candidate will support customers, installers, EPC contractors, and channel partners through on-site services, remote technical support, hotline assistance, and email communications. The position also serves as a technical representative of the company during customer meetings, training sessions, seminars, webinars, and industry events.

This is a permanent full-time role requiring frequent domestic travel and occasional overseas travel.

Key Responsibilities

• Perform pre-commissioning, commissioning, testing, system acceptance, and handover activities for Solar PV and BESS projects.

• Provide on-site and remote technical support for Solar PV systems, hybrid inverters, battery energy storage systems, monitoring platforms, communication devices, and related electrical equipment.

• Conduct preventive maintenance, corrective maintenance, fault diagnosis, troubleshooting, and repair activities to ensure system reliability and performance.

• Diagnose and resolve issues related to PV inverters, batteries, Battery Management Systems (BMS), Energy Management Systems (EMS), monitoring platforms, communication networks, and other system components.

• Ensure all field service activities comply with local electrical regulations, company standards, and workplace health and safety requirements.

• Coordinate service activities with customers, installers, EPC contractors, service partners, and internal departments to ensure timely completion of service requests and project milestones.

• Manage service cases and maintain accurate records of commissioning reports, maintenance activities, spare parts inventory, warranty claims, service expenses, and customer feedback.

• Support service partner management activities, including technical guidance, training, performance evaluation, and coordination of field service work.

• Identify opportunities for service revenue generation through maintenance contracts, spare parts sales, warranty extensions, system upgrades, and value-added service offerings.

• Monitor system performance, analyze operational data, conduct root-cause analysis, and provide recommendations to improve system efficiency, reliability, and customer satisfaction.

• Deliver technical training, product demonstrations, and knowledge-sharing sessions for customers, installers, EPC partners, distributors, and service providers.

• Represent the company as a technical expert during customer meetings, technical workshops, webinars, exhibitions, industry events, and conferences.

• Support the sales and business development teams by providing technical expertise, conducting site assessments, and presenting Solar PV and BESS solutions to prospective and existing customers.

• Establish and maintain strong relationships with customers and business partners to support long-term cooperation and business growth.

• Communicate effectively with management, sales teams, service partners, and customers to support operational excellence and business objectives.

Education & Experience

• Bachelor’s Degree or above in Electrical Engineering, Electronics Engineering, Renewable Energy Engineering, or other related Engineering disciplines.

• Minimum 3 years of experience in field service, commissioning, technical support, operations and maintenance, or related roles within the renewable energy, solar, energy storage, or power electronics industry.

• Minimum 2 years of hands-on experience in Solar PV system installation, commissioning, troubleshooting, and maintenance.

• Experience with Battery Energy Storage Systems (BESS), hybrid inverter systems, energy management systems, or related renewable energy technologies is highly preferred.

• Experience working with Residential and Commercial & Industrial (C&I) Solar PV projects is an advantage.

Skills

• High level of commitment, accountability, customer focus, and responsiveness.

• Strong technical understanding of Solar PV systems, battery energy storage systems (BESS), hybrid inverters, BMS, EMS, and related power electronics equipment.

• Solid knowledge of electrical systems, protection devices, switchgear, grid-connected renewable energy systems, and electrical safety practices.

• Strong troubleshooting, analytical, and problem-solving skills with the ability to perform root-cause analysis and develop effective solutions.

• Demonstrated leadership, teamwork, and stakeholder management skills.

• Strong project coordination and time management skills in a fast-paced environment.

• Excellent written, verbal, presentation, and public speaking skills, with the ability to communicate technical concepts to both technical and non-technical audiences.

• Excellent customer relationship management and interpersonal skills.

• Proficiency in Microsoft Office applications and technical reporting tools.

• Knowledge of SCADA systems, Modbus communication protocols, remote monitoring platforms, and networking fundamentals is an advantage.

• Excellent communication skills in English. Chinese language proficiency is a plus.