Field Service Engineer (Utility BESS)

Responsibilities

• Always work in accordance with UK health and safety legislation, company procedures, and site-specific requirements.
• Perform risk assessments and method statements (RAMS) before commencing work.
• Ensure compliance with electrical safety standards, and lockout/tagout (LOTO) procedures.
• Promote a strong safety culture and report hazards, incidents, and near misses

• Conduct planned preventative maintenance (PPM) on BESS installations.
• Inspect battery enclosures, PCS (Power Conversion Systems), transformers, switchgear, HVAC systems, fire suppression systems, and monitoring equipment.
• Complete maintenance documentation accurately and on time.
• Ensure service activities meet contractual requirements and OEM standards.

• Diagnose and resolve electrical, mechanical, communication, and control system faults.
• Perform root cause analysis and implement corrective actions.
• Replace defective components including: Battery modules; Inverters/PCS units; Communication devices; UPS systems; Fire Alarm systems; Gas alarm systems; Temperature management systems
• Coordinate with technical support and engineering teams for complex issues.

• Support site commissioning activities for new energy storage projects.
• Conduct functional testing, electrical verification, and system performance assessments.
• Assist with system energisation and grid compliance testing.
• Produce commissioning reports and handover documentation.

• Utilise SCADA and remote monitoring platforms to investigate alarms and performance issues.
• Support customer requests and technical queries.
• Escalate critical issues appropriately to engineering and management teams

• Complete service reports using company service management systems.
• Maintain accurate records of work completed, parts used, and recommendations.
• Update technical documentation and service databases.

• Act as the primary technical representative on site.
• Build strong relationships with customers, contractors, and suppliers.
• Deliver high levels of customer service and professionalism.

Requirements

• NVQ Level 3, City & Guilds, HNC/HND, or equivalent qualification in Electrical Engineering.
• Experience working on: Battery Energy Storage Systems (BESS); Renewables; Low-voltage (LV) electrical systems; Industrial power systems
• Strong electrical fault-finding skills.
• Experience interpreting electrical drawings and schematics.
• Full UK Driving Licence.
• Ability to work independently in a field-based environment.
• Right to work in the United Kingdom.

• Previous experience with utility-scale battery storage systems.
• Authorised Person (AP) or Senior Authorised Person (SAP) experience.
• Experience with: SCADA systems; PLC controls; Power electronics; Inverters and converters
• G99/Grid Code knowledge.
• Renewable energy industry experience

• Electrical installation and maintenance
• High-voltage switching awareness
• Power conversion systems
• Battery technologies (Lithium-Ion preferred)
• Protection systems
• Network communications
• SCADA monitoring systems
• Root cause analysis
• Technical reporting
• Reading and interpreting electrical schematics

• Strong commitment to safety.
• Excellent problem-solving abilities.
• Customer-focused mindset.
• Self-motivated and organised.
• Strong communication skills.
• Flexible and willing to travel.

• Field-based role covering South East England.
• Frequent travel to customer sites.
• Overnight stays.
• Outdoor work in all weather conditions.
• Remote diagnosis of faults and issues

We offer you

• A dynamic environment with high responsibilities and an independent working style
• The opportunity for professional development and growth in one of the most fast-growing industries.
• An environment of open communication where all ideas and opinions are valued
• Collaboration with an international and diverse team from all over Europe
• Possibility for remote work
• Qualified training and support with our buddy system
• A detailed introduction to our product portfolio
• Competitive salary and a great bonus structure
• Attractive additional benefits that vary depending on the country