Technical Service Engineer BESS - Southern Europe (d/f/m)

Vedi l’offerta su Go Lavoro: golavoro.it/annuncio-lavoro/84gub1

Please send your application documents in English

Position, Location, Department

Full-time | Italy, Spain | Technical Europe

Position Summary The Technical Service Engineer BESS is responsible for the on-site installation support, commissioning, grid connection, and after-sales technical service of Battery Energy Storage System (BESS) projects across Southern Europe.

The role acts as a supporting on-site technical representative, working under the guidance of senior service engineers and the Team Lead Service Delivery BESS, ensuring safe, timely, and high-quality project delivery from installation through commissioning, acceptance, and post-installation support.

Reporting Line

Reports to: Team Lead Service Delivery BESS

Major Responsibilities

Site Delivery & Commissioning

- Provide on-site technical support during installation, commissioning, testing, and handover of Battery Energy Storage System (BESS) projects.
- Support senior engineers in supervising installation activities and verifying compliance with technical specifications, quality standards, and safety requirements.
- Participate in system commissioning, functional testing, and grid connection activities under appropriate technical guidance.
- Resolve on-site technical issues related to electrical installation and system integration, escalating complex issues where required.
- Support project acceptance, punch-list resolution, and final technical handover to customers.

After-Sales Technical Support
- Respond promptly to customer technical enquiries via remote or on-site support and ensure timely issue resolution.
- Troubleshoot hardware, software, communication, and system performance issues, with support from senior technical specialists where required.
- Manage after-sales service activities through the service management system, ensuring accurate documentation and timely closure of work orders.
- Coordinate with engineering, product, and technical support teams to resolve technical issues efficiently.
- Coordinate with Sales teams to ensure effective customer communication and high customer satisfaction.

Customer Support & Training
- Support the delivery of customer training on system operation, routine maintenance, and safety procedures.




- Handle customer complaints professionally and escalate complex technical issues through the appropriate support channels.

Continuous Improvement
- Collect and communicate customer feedback, technical issues, and field observations to support product improvements.
- Maintain technical knowledge of BESS products, system architecture, and commissioning procedures through ongoing training and certification programs.
- Support spare parts inventory management and ensure service tools are properly maintained.

Performance Indicators

- Response time to customer service requests
- Mean Time to Repair (MTTR)
- First-time fix / first-visit resolution rate
- On-time commissioning and project handover
- Technical quality of commissioning and documentation
- Customer satisfaction with field service support
- Compliance with EHS and site safety requirements
- Accuracy and timeliness of service documentation

Required Qualifications

- Bachelor's degree or technical qualification in Electrical Engineering, Power Engineering, Renewable Energy, Electronics, Mechatronics, or related technical discipline
- Typically, 2-4 years of experience in field service, commissioning, site engineering, maintenance, or technical support within power systems, inverters, power electronics, electrical infrastructure, MV/HV installations, renewable energy, or a related technical industry
- Good understanding of electrical systems, inverters, power electronics, MV/HV equipment, power conversion equipment, or Battery Energy Storage Systems (BESS). Previous BESS experience is advantageous but not required
- Experience supporting electrical installation, maintenance, commissioning, or troubleshooting activities
- Ability to interpret electrical drawings, wiring diagrams, and single-line schematics




- Basic knowledge of electrical safety standards and grid-connected electrical systems is preferred
- Relevant local language: C1 (professional working proficiency). English: B2 (full professional capability)
- Valid driver's license

Skills & Competencies

- Strong technical troubleshooting and diagnostic skills
- Practical understanding of electrical systems, electrical testing, troubleshooting, and commissioning fundamentals
- Structured, detail-oriented, and safety-focused working style
- Strong customer service and communication skills
- Ability to work independently while effectively seeking guidance and technical support when required
- Strong problem-solving and decision-making capability
- Cross-functional collaboration and stakeholder management skills
- High level of adaptability and willingness to travel extensively

Travel Requirement

- Very frequent travel across Southern Europe (estimated ≥50% of working time).
- Extended periods at customer sites are expected.

About JA JA Solar was founded in 2005 and is a leading global manufacturer of high-performance photovoltaic products. With 14 production sites, more than 20 subsidiaries and over 37,000 employees worldwide, JA Solar is one of the world's largest solar module manufacturers. The company's business includes module, wafer and cell production as well as the construction of solar power plants.

JA Solar is listed on the Shenzhen Stock Exchange in China and has been included in the Fortune China 500 and Global Top 500 New Energy Enterprises for several consecutive years.

JA Solar is an equal opportunity employer and we encourage applications from all qualified individuals.

By submitting your application, you declare that your application data will be saved at JA Solar GmbH, and only for internal purposes in the context of the upcoming application process. If there is no employment, the data will be deleted after six months. The application data are treated confidentially in accordance with the provisions of the Federal Data Protection Act and are not passed on to third parties.

You can revoke your consent at any time, either by email or in writing by mail to the company address.

Vedi l’offerta su Go Lavoro: golavoro.it/annuncio-lavoro/84gub1