ESS Delivery Engineer (BESS Commissioning)

About the role

This role covers the commissioning, project delivery and acceptance of large-scale Battery Energy Storage System (BESS) projects. It involves on-site commissioning, troubleshooting, SAT and grid connection testing, and supporting customer training.

Key responsibilities

• Commission, troubleshoot and resolve defects in battery containers/cabinets, including fire suppression, liquid cooling, DC circuits up to 1500V, auxiliary AC circuits, and BMS communication systems.
• Support commissioning of PCS and EMS with a basic understanding of their operation.
• Analyse on-site issues, carry out fault diagnosis and corrective actions, and track issues to closure.
• Take part in SAT, grid connection testing and project acceptance.
• Train customers on system operation, maintenance and product use.
• Work with R&D, Quality, After-Sales Service and Project Management teams, and comply with EHS requirements.

Required profile

• Bachelor's degree or above; Electrical, Communication, Energy or Renewable Energy Technology preferred.
• More than 5 years of experience in electrical equipment commissioning, energy projects or related fields.
• Fluent English for daily work and on-site communication; Mandarin Chinese required.
• Willingness to travel extensively and take long-term assignments at overseas project sites.

Required skills

• Familiarity with primary and secondary electrical systems, energy storage, PV and power systems, and industrial protocols such as CAN and Modbus RTU/TCP.
• Ability to read electrical schematics, wiring diagrams and communication topology drawings.
• Proficiency in Microsoft Office and standard office software.
• Strong analytical, communication, coordination and teamwork skills.
• Preferred: BESS, PV or wind project experience, low-voltage/high-voltage electrical certification, and experience on international projects.