On-Site Field Services Engineer, Energy Storage Systems

CATL; Slough; On-site; GBP 42,000 - 65,000; Full time

Job summary

CATL in the United Kingdom seeks an on-site Energy Storage Maintenance Engineer to perform inspections, maintenance, and fault diagnosis on energy storage systems, ensuring safe and reliable operation.

The role includes coordinating post-installation commissioning, managing operational data, enforcing safety standards, and communicating with customers and partners to maintain high service quality.

Qualifications

• Bachelor’s degree or above in a relevant field.
• Experience in O&M and maintenance of large-scale energy storage projects preferred.
• 3+ years of relevant experience preferred.
• Languages: Fluent English; Spanish is a plus.

Responsibilities

• On-site inspection, maintenance, and preventive maintenance of energy storage systems (PCS, BMS, EMS, battery clusters, transformers, switchgear, fire suppression systems) per O&M plans.
• Fault diagnosis and emergency response: respond to alarms, locate faults on-site, perform root-cause analysis, and repair; coordinate with technical teams to minimize downtime.
• Equipment commissioning support: coordinate resources for post-installation commissioning, grid-connection testing, trial operation, and final acceptance.
• O&M data management & reporting: collect and organize operational data, fault records, maintenance records, and inspection reports; analyze status and health; produce reports.
• On-site safety management & customer communication: enforce safety procedures, manage permits, coordinate with customers/partners, and feedback on operation.
• Inspection, maintenance, repair, and fault diagnosis of new energy vehicles powertrain components (battery, drive motor, E- control) as needed.

Skills

Fluent English

Spanish helpful

Education

Bachelor’s degree or above

Job description

CATL in the United Kingdom seeks an on-site Energy Storage Maintenance Engineer to perform inspections, maintenance, and fault diagnosis on energy storage systems, ensuring safe and reliable operation.

The role includes coordinating post-installation commissioning, managing operational data, enforcing safety standards, and communicating with customers and partners to maintain high service quality.