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

Remote

Full-time

Permanent employee

Your mission

Position, Location, Department
Full-time | Scandinavia | Technical Europe

Position Summary
The Technical Service Engineer BESS is responsible for the on-site installation support, commissioning, grid connection, and aftersales technical service of Battery Energy Storage System (BESS) projects across Northern Europe.
The role acts as the primary on-site technical representative, ensuring safe, timely, and high-quality project delivery from installation through commissioning, acceptance, and post-installation support. The Service Engineer collaborates closely with customers, EPCs, subcontractors, and internal technical teams to resolve technical issues, ensure compliance with local grid and safety requirements, and deliver an excellent customer experience throughout the project lifecycle.

Reporting Line
Reports to: Team Lead Service Delivery BESS

Major Responsibilities
Site Delivery & Commissioning

Provide on-site technical support duringinstallation, commissioning, testing, and handover of Battery Energy Storage System (BESS) projects.
Superviseinstallationactivities and verifycompliancewithtechnicalspecifications, qualitystandards, and safety requirements.
Perform systemcommissioning, functionaltesting, and gridconnectionactivities to ensuresuccessfulprojectenergization.
Resolve on-site technicalissuesrelated to electricalinstallation, systemintegration, and gridcompliance.
Support projectacceptance, punch-list resolution, and final technicalhandover to customers.

After-Sales Technical Support

Respondpromptly to customertechnicalenquiries via remote or on-site support and ensuretimelyissueresolution.
Troubleshoothardware, software, communication, and systemperformanceissues, escalatingcomplexcaseswhereappropriate.
Manage aftersales service activities through the service management system, ensuring accurate documentation and timely closure of work orders.
Coordinatewithengineering, product, and technical support teams to resolvetechnicalissuesefficiently.
Coordinate with Sales teams to ensure effective customer communication and high customer satisfaction.

Customer Support & Training

Deliver customertraining on systemoperation, routinemaintenance, and safetyprocedures.
Build positive customerrelationshipsthrough professional technical support and effectivecommunication.
Handle customercomplaintsprofessionally and coordinateappropriatecorrectiveactions to maintaincustomersatisfaction.

Continuous Improvement

Collect and communicatecustomerfeedback, technicalissues, and fieldobservations to support productimprovements.
Maintaintechnicalknowledge of BESS products, systemarchitecture, and commissioningprocedures.
Support spare partsinventorymanagement and ensureservicetoolsareproperlymaintained.

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

Your profile

Required Qualifications

Bachelor's degree or technical qualification in Electrical Engineering, Power Engineering, Renewable Energy, Electronics, Mechatronics, or a related technical discipline
Typically 3-7 years of experience in field service, commissioning, site engineering, or technical support within BESS, PV, power systems, electrical infrastructure, or related industry
Strong understanding of electrical systems, inverters, Battery Energy Storage Systems (BESS), or power conversion equipment
Experience with electrical installation, commissioning, and troubleshooting
Ability to interpret electrical drawings, wiring diagrams, and single-line schematics
Knowledge of grid connection requirements and electrical safety standards is preferred
Experience working on utility-scale or commercial renewable energy projects is an advantage
English: C1 (professional working proficiency)
Valid driver's license

Skills & Competencies

Strong technicaltroubleshooting and diagnosticskills
Practicalunderstanding of electricalsystems and commissioningprocesses
Structured, detail-oriented, and safety-focusedworking style
Strong customerservice and communicationskills
Ability to workindependentlyunderdemandingsiteconditions
Strong problem-solving and decision-makingcapability
Cross-functional collaboration and stakeholdermanagementskills
High level of adaptability and willingness to travel extensively

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

Über uns

JA Solar wurde 2005 gegründet und ist ein global führender Hersteller von Hochleistungs-Photovoltaikprodukten. Mit 12 Produktionsstandorten und mehr als 20 Niederlassungen auf der ganzen Welt umfasst das Geschäft des Unternehmens Wafer, Zellen, Module und Photovoltaik Power Stations.

Die Produkte von JA Solar sind global erhältlich und werden in großem Umfang in Freiflächenkraftwerken, kommerziellen & industriellen Dach-PV-Systemen und PV-Systemen für Hausdächer eingesetzt. Dank kontinuierlicher technologischer Innovation, solider Finanzen und sehr gut etablierten globalen Vertriebs- und Servicenetzwerken ist JA Solar bei Kunden aus dem In- und Ausland hoch anerkannt.

Das Unternehmen ist an der Börse in Shenzhen / China gelistet und fand in mehreren aufeinanderfolgenden Jahren Aufnahme in die Fortune China 500 und Global Top 500 New Energy Enterprises.

Bewerben Sie sich bitte auf Deutsch oder Englisch unter Angabe Ihrer Gehaltsvorstellung und Kündigungsfrist bei career@jasolar.eu.