Battery Performance Engineer

Join Our Journey Towards Fossil-Free Living as a Battery Performance Engineer - BESSAt Vattenfall, one of Europe's largest generators of electricity we're on a mission to enable fossil-free living within one generation. The Business Unit Solar & Batteries is part of Vattenfall’s Business Area Wind and responsible for developing, constructing, and operating renewable energy assets across multiple European markets. Our mission is to enable fossil-free living by delivering profitable and scalable solar and battery storage solutions.Do you want to drive innovation in BESS (battery energy storage systems)? Are you passionate about data, analytics and operational excellence? Join us as a Battery Performance Engineer in our BESS Engineering department, which is the technical backbone to deliver high performing and cost-effective BESS assets and help us to shape the future of fossil-free energy!What You Will DoAs the Battery Performance Engineer, you will play a key role in optimizing battery performance, safety and longevity through expert evaluation. You’ll provide technical insight across our entire BESS project portfolio. We seek a structured, analytical and proactive team player with a passion for BESS and data-driven decision-making.  Key Responsibilities:Provide technical expertise in battery systems, including degradation management, performance optimization, warranties and safety standards.Define and manage data flows for operating BESS assets — from data collection to storage — ensuring data quality, consistency and accessibility.Conduct data processing, analysis and visualization to support data-driven decision-making for projects and asset operations.Develop and specify performance and operational requirements for BESS and support the sourcing of suitable technologies and suppliers through technical due diligence.Integrate operational lessons learned into future projects and engineering standards, including continuous improvement of battery degradation models.Collaborate with asset managers to enhance operational performance and maximize battery asset availability.Monitor and share insights on battery technology trends, market developments and innovations to support informed technical decisions and continuous improvement.