BESS Service Manager

LONGi Energy Storage; Comunidad de Madrid; Hybrid; EUR 120,000 - 180,000; Full time

Job summary

LONGi Energy Storage Europe is seeking a Core Service Management leader to oversee full-cycle service delivery for utility-scale ESS across Europe. You will lead the service team, manage LTSA and O&M projects, and ensure contract compliance, KPI delivery, and customer satisfaction.

The role requires deep expertise in BESS, O&M optimization, data review, cost control, and cross‑functional collaboration with R&D, engineering and quality teams to drive product iteration and service improvements.

Qualifications

• Experience leading full-cycle service delivery for utility-scale ESS projects.
• Strong knowledge of LTSA contracts, O&M standards and KPI reporting.
• Proven ability to manage cross-functional teams across Europe.

Responsibilities

• Lead the service team and own LTSA project performance across Europe.
• Oversee End-to-End O&M, warranty and LTSA handovers to O&M.
• Control service scope, SLAs, costs and customer satisfaction.
• Design and deploy standardized O&M processes and tools.
• Maintain strong customer relationships and provide regular performance reviews.

Skills

Service management

O&M management

LTSA projects

Customer relations

Data analysis

Education

Electrical Engineering

Job description

Department

Europe Service Management Dept.

Report To

Europe Service Director

Work Location

Europe (Hybrid)

Vacancy

2

Job Attribute

Core management role, dedicated to Utility-scale and C&I ESS, responsible for full-cycle service project execution, revenue, profitability, quality and customer satisfaction.

2. Job Overview

Support to build up the service system across Europe, manage E2E after-sales service.

Front-End Sales Support: Support service sales activities; strictly control service scope, SLAs, risks and LD to ensure seamless service deliverability.

Back-End Operations: Take over Warranty and LTSA projects handover to O&M; oversee all service activities during O&M phase, present service values, ensuring O&M service quality and customer experience.

Lead to design and deploy O&M service processes and intelligent tool platforms.

3. Core Job Responsibilities

3.1 Full-Cycle Project Performance & O&M Management

Lead the service team, take full responsibility for the performance of new and existing LTSA projects, and oversee the full lifecycle O&M services after grid connection. Strictly implement contractual service standards, track core KPIs such as power station availability, system performance and fault repair timeliness, regularly deliver project performance reports and performance analysis reports, and ensure 100% compliant project performance to meet owner and grid assessment requirements.

3.2 Resource & Spare Parts System Management

Plan and implement a centralized, remote plus localized O&M model, manage own team and outsourced service providers across Europe, and standardize remote and on-site operating procedures, safety specifications and service standards.

Establish a complete mechanism for spare parts warehousing, allocation, replacement and inventory checking. Accurately predict spare parts demand, control spare parts costs and logistics efficiency, solve on-site problems such as parts shortage, replacement and rework, ensure stable operation of power stations, and effectively reduce downtime and operation losses.

3.3 Fault Disposal & Technical Optimization

Lead the disposal of major and complex faults of ESS projects, identify root causes, formulate rectification plans, preventive mechanisms and optimization strategies, and summarize standardized solutions through case review. Based on power station operating data, battery attenuation rules and system operating problems, collaborate with R&D, engineering and quality teams to promote product iteration, program upgrade, structural optimization and O&M process improvement, so as to continuously enhance the stability, safety and service life of energy storage power stations and optimize long-term project operation quality.

3.4 Customer Relationship & Satisfaction Management

Act as the core customer contact for LTSA projects, responsible for daily communication, monthly/quarterly O&M reports and project review docking. Respond to customer demands in a timely manner, rectify existing problems and synchronize performance progress. Conduct regular customer return visits and satisfaction surveys, handle customer complaints and performance disputes, resolve cooperation divergences, maintain long-term and stable cooperative relationships, explore value-added service opportunities for existing projects, and support secondary contract signing and brand reputation building.

3.5 Data Review & Cost Control

Regularly review performance data, O&M costs, fault data and performance indicators of all LTSA projects, and deliver special review reports. Reasonably control project costs including labor, spare parts, travel and outsourcing expenses, optimize resource allocation, and improve the profit margin of each LTSA project. Summarize project performance experience, accumulate industry best practices, and optimize front-end LTSA commercial terms and service quotation systems.

4. Job Requirements

4.1 Education Background

Bachelor’s degree or above, major in Electrical Engineering, Automation, New Energy, Power System, Energy Storage Engineering or related fields is preferred.

4.2 Work Experience

8+ years of working experience in utility-scale BESS delivery, O&M management; 3+ years of overall LTSA project management experience. Familiar with the full lifecycle performance process of large-scale ESS projects. Candidates with working experience in leading ESS integrators or new energy battery enterprises and proven experience in managing 100MWh/GW-level LTSA projects are highly preferred.

• Proficient in utility-scale BESS system architecture, familiar with the working principles, O&M standards and fault handling logic of battery clusters, PCS, EMS, BMS, thermal management, fire protection and BOS auxiliary equipment; skilled in grid connection, performance testing and emergency repair of large-scale energy storage power stations.
• In-depth understanding of core LTSA clauses, performance standards, industry practices and assessment rules; capable of independent LTSA negotiation, service scheme formulation and performance risk control.
• Fully grasp core assessment indicators of ESS projects including availability rate, MTBF, MTTR and battery attenuation, with rich experience in indicator optimization, fault review and risk management.
• Excellent in overall project planning, resource scheduling and cross-departmental collaboration; capable of managing multiple large-scale LTSA projects simultaneously and efficiently handling on-site emergencies and customer disputes.
• Experienced in team building and management; able to establish a standardized LTSA service system and empower the team to improve professional capabilities and performance efficiency.

4.4 Personal Qualities

• Able to work under high pressure, accept frequent business trips, and adapt to emergency repairs and holiday on-duty arrangements for energy storage projects.
• Strong customer communication, public relations and problem-solving abilities, rigorous logical thinking, high sense of responsibility and outstanding risk prediction awareness.
• Result-oriented, with excellent overall planning, optimization iteration and system construction capabilities.
• Familiar with power energy storage industry specifications, safety standards and grid acceptance requirements with solid compliance awareness.

5. Preferred Qualifications

• Proven experience in overall management of GW-level LTSA projects and business docking experience with grid corporations and state-owned energy enterprises
• Familiar with overseas LTSA service standards and international O&M systems with overseas project performance experience