BESS Technical Support Engineer

SolaX Power; Germany (OH); On-site; USD 75,000 - 110,000; Full time

Benefits offered by this job

Competitive compensation

International exposure

Professional growth

Job summary

SolaX Power seeks a BESS Technical Support Engineer to provide pre-sales and post-sales technical support for utility-scale battery energy storage systems, ensuring optimal performance and customer satisfaction. The role emphasizes knowledge of energy storage, system integration, and field operations.

Responsibilities include remote and on-site commissioning support, diagnosis of faults, collaboration with R&D, and assisting with documentation, firmware upgrades, and project reviews.

Qualifications

• Bachelor’s degree in Electrical Engineering, Power Systems, Mechatronics, or related field.
• Minimum 3 years of experience in technical support, commissioning, or service for BESS, solar, or power systems.
• Strong understanding of Li-ion battery technology, inverter operation, communication protocols (Modbus, CAN, TCP/IP), and power electronics.
• Hands-on experience with EMS, BMS, SCADA systems, or grid integration is highly desirable.
• Ability to read and interpret electrical schematics and control diagrams.
• Excellent problem solving, analytical, and customer service skills.
• Strong communication skills in English (both written and spoken); additional languages are a plus.
• Willingness to travel domestically and internationally for site support and training.

Responsibilities

• Provide remote and on-site technical support for commissioning, operation, and maintenance of BESS solutions.
• Diagnose and resolve system faults related to battery systems, inverters, BMS/EMS, and communication networks.
• Work closely with HQ R&D and product teams to escalate and resolve complex technical issues.
• Guide customers and service partners through system testing, firmware upgrades, and troubleshooting procedures.
• Support the sales and application engineering teams with technical documentation, system configuration, and project design reviews.
• Participate in customer meetings and technical discussions to explain system architecture and product functionalities.
• Review project drawings, single-line diagrams, and technical specifications to ensure compliance with standards.

Skills

Electrical engineering knowledge

BESS knowledge

Troubleshooting

English communication

Education

Bachelor's degree in Electrical Engineering / Power Systems / Mechatronics

Tools

EMS

BMS

SCADA

Modbus

CAN

TCP/IP

Job description

Established in 2012, SolaX Power is dedicated to helping our customers transform their homes and businesses to clean energy and reducing the reliance on fossil fuels. SolaX Power is a leading provider of sustainable solar and energy storage solutions, with a strong presence in Europe, Asia, and Africa. Now we have more than 2800 employees globally, and we continue hiring talents to join us. At SolaX, a global organization, your career can reach its full potential.

Position Overview

The BESS Technical Support Engineer / Specialist is responsible for providing pre-sales and post-sales technical support for Utility Scale Battery Energy Storage Systems (BESS), ensuring optimal performance and customer satisfaction. This role requires a strong understanding of energy storage technology, system integration, and field operations.

Key Responsibilities

• Provide remote and on-site technical support for commissioning, operation, and maintenance of BESS solutions.
• Diagnose and resolve system faults related to battery systems, inverters, BMS/EMS, and communication networks.
• Work closely with HQ R&D and product teams to escalate and resolve complex technical issues.
• Guide customers and service partners through system testing, firmware upgrades, and troubleshooting procedures.
• Support the sales and application engineering teams with technical documentation, system configuration, and project design reviews.
• Participate in customer meetings and technical discussions to explain system architecture and product functionalities.
• Review project drawings, single-line diagrams, and technical specifications to ensure compliance with standards.

Training & Documentation

• Conduct technical training for customers, EPCs, and internal service teams.
• Prepare and update user manuals, installation guides, FAQs, and troubleshooting checklists.
• Maintain accurate service reports, failure analyses, and system performance records.

Quality & Feedback

• Monitor field performance and provide feedback to product and R&D teams for continuous improvement.
• Support warranty claim evaluations and root-cause analysis of returned components.
• Contribute to service knowledge base development and standard operating procedures (SOPs)

Qualifications and Requirements

• Bachelor’s degree or above in Electrical Engineering, Power Systems, Mechatronics, or related field.
• Minimum 3 years of experience in technical support, commissioning, or service for BESS, solar, or power systems.
• Strong understanding of Li-ion battery technology, inverter operation, communication protocols (Modbus, CAN, TCP/IP), and power electronics.
• Hands-on experience with EMS, BMS, SCADA systems, or grid integration is highly desirable.
• Ability to read and interpret electrical schematics and control diagrams.
• Excellent problem solving, analytical, and customer service skills.
• Strong communication skills in English (both written and spoken); additional languages are a plus.
• Willingness to travel domestically and internationally for site support and training.

What We Offer

• Competitive compensation and benefits package.
• Opportunity to work with cutting-edge energy storage technologies.
• International exposure and cross-functional collaboration.
• Professional growth and continuous learning in a fast-evolving clean energy industry.