ESS Delivery Engineer

CATL; Riyadh; On-site; SAR 180,000 - 260,000; Full time

Job summary

CATL is seeking a Commissioning Engineer for large-scale Battery Energy Storage System (BESS) projects in Saudi Arabia. You will participate in commissioning, SAT, and handover, coordinating with R&D, QA, After-Sales, and Project teams to ensure timely delivery.

Requires a Bachelor's degree or higher in Electrical/Energy related fields, 5+ years in electrical equipment commissioning, knowledge of BESS, PV or power systems, and fluency in English with Mandarin proficiency.

Qualifications

• Bachelor's degree or above.
• Majors include Electrical Engineering, Communication Engineering, Energy Engineering, Renewable Energy Technology, or related disciplines.
• More than 5 years of experience in electrical equipment commissioning, energy projects, or related industries.

Responsibilities

• Participate in commissioning, project delivery, and acceptance of large-scale BESS projects.
• Perform commissioning, troubleshooting, and defect resolution for battery containers/cabinets.

Skills

Electrical systems knowledge

CAN protocol

Modbus RTU/TCP

Reading schematics

MS Office

English fluency

Mandarin proficiency

Travel willingness

Collaboration

Strong communication

Education

Bachelor's degree or above

Electrical Engineering

Communication Engineering

Energy Engineering

Renewable Energy Technology

Tools

CAN protocol

Modbus RTU/TCP

MS Office

Job description

• Participate in the commissioning, project delivery, and acceptance of large-scale Battery Energy Storage System (BESS) projects.
• Perform commissioning, troubleshooting, and defect resolution for battery containers/cabinets, including:

Fire Suppression System (FSS),Liquid Cooling System (HVAC/TMS),DC Circuits (up to 1500V DC),Auxiliary AC Circuits (220V/400V AC),BMS Communication Systems

• Assist with the commissioning of PCS (Power Conversion System) and EMS (Energy Management System), with a basic understanding of their operating principles.
• Support on-site issue analysis, fault diagnosis, corrective actions, and issue closure together with the project team.
• Participate in Site Acceptance Testing (SAT), grid connection testing, and project acceptance activities.
• Support customer training on system operation, maintenance, and product usage.
• Track commissioning issues through to closure and ensure projects are delivered according to schedule.
• Collaborate with cross-functional teams (R&D, Quality, After-Sales Service, Project Management, etc.) to resolve site issues efficiently.
• Comply with EHS (Environment, Health & Safety) requirements and ensure safe execution of all commissioning activities.

Qualifications

• Bachelor's degree or above.
• Preferred majors include Electrical Engineering, Communication Engineering, Energy Engineering, Renewable Energy Technology, or related disciplines.
• More than 5 years of experience in electrical equipment commissioning, energy projects, or related industries.
• Familiarity with one or more of the following areas:Basic knowledge of primary and secondary electrical systems;

Energy storage systems, photovoltaic (PV) systems, and power systems;Basic principles of BMS, PCS, and EMS;

Industrial communication protocols such as CAN and Modbus RTU/TCP;Communication networks and fieldbus technologies.

• Ability to read and understand electrical schematics, wiring diagrams, and communication topology drawings.
• Knowledge of BESS grid-connection processes, substation equipment, and power plant delivery procedures is preferred.
• Proficient in Microsoft Office and other standard office software.
• Strong analytical, communication, coordination, and teamwork skills.
• Fluent in English for daily work and on-site communication; Mandarin Chinese proficiency is required.
• Willingness to travel extensively and undertake long-term assignments at project sites overseas

Preferred Qualifications

• Experience in Battery Energy Storage Systems (BESS), photovoltaic (PV), or wind power projects.
• Low-voltage and/or high-voltage electrical certification, or equivalent electrical qualifications.
• Experience working on international projects or in a multicultural environment.
• Proficiency in English, Chinese is a plus.