Senior BESS Operations & Maintenance Manager Location: Europe or the United Kingdom (adaptable)
Overview A leading international energy infrastructure company is seeking a Senior BESS Operations & Maintenance Manager to oversee the technical operation and maintenance of utility-scale battery energy storage systems across multiple sites in Europe and the UK.
This is a senior technical leadership role requiring strong hands-on BESS expertise, operational oversight experience, and the ability to manage maintenance teams, client relationships, and performance optimisation across a multi-site portfolio.
The successful candidate will have significant experience in battery energy storage operations and maintenance, including preventative maintenance, troubleshooting, warranty repairs, and commissioning support.
Key responsibilities Lead operations and maintenance activities across multiple utility-scale BESS sites.
Ensure battery energy storage systems are maintained to a high operational standard through planned preventative maintenance, inspections, annual testing, troubleshooting, and reactive maintenance.
Provide remote and on-site technical support for commissioning, testing, performance verification, and fault resolution.
Develop, implement, and continuously improve standard operating procedures (SOPs), maintenance strategies, and technical documentation.
Coordinate internal and external technical resources to ensure efficient project execution and high levels of customer satisfaction.
Build technical capability within the O&M; team through competency assessments, training plans, mentoring, and knowledge sharing.
Ensure all maintenance activities comply with local regulations, health and safety legislation, and company safety standards.
Oversee spare parts management, warehouse operations, and local supply chain activities related to maintenance operations.
Monitor system performance using SCADA and remote monitoring platforms, analyse operational data,



and identify opportunities for performance improvement.
Ensure consistency, quality, and operational excellence across all managed sites.
Provide regular technical and operational reporting on system performance, incidents, maintenance activities, and improvement initiatives.
Formal qualification in an electrical engineering or electrical maintenance discipline.
Significant operations and maintenance experience within the battery energy storage (BESS) or utility-scale renewable energy sector.
Strong working knowledge of battery systems, battery management systems (BMS), HVAC systems, fire suppression systems, and associated balance-of-plant equipment.
Practical experience with preventative maintenance, fault diagnostics, troubleshooting, and warranty repair activities.
Experience with SCADA systems, remote monitoring platforms, networking, and diagnostic software.
Strong IT skills including Microsoft Office applications and technical configuration tools.
Valid certification for safe electrical and on-site work in accordance with relevant European standards.
Willingness to travel regularly across Europe and the UK, including overnight and international travel.
Preferred experience Experience in remote monitoring or network operations centre environments.
Previous experience working with Tier 1 BESS manufacturers or major energy storage technology providers.
European electrical or operational safety certifications.
Strong understanding of HV/LV electrical systems, power electronics, inverters, transformers, and grid-connected energy infrastructure.
What is offered Competitive salary and performance-related bonus.
Comprehensive benefits package including pension and annual leave.
Company vehicle (business use), fuel support, laptop, and mobile communication equipment.
Ongoing technical training and professional development opportunities.
International career growth within a rapidly expanding energy storage business.
Relocation support may be available for the right candidate.
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📌 Senior Bess Operations & Maintenance Manager (Madrid)
🏢 Smart4 Energy
📍 Madrid