Project Engineer - Battery Energy Storage Systems

Join Our Journey Towards Fossil-Free Living as Project Engineer – Battery Energy Storage Systems (BESS) 

At Vattenfall, one of Europe's largest generators of electricity we're on a mission to make fossil-free living possible within one generation.  

Our Battery Engineering Circle focuses on developing, building, and operating Battery Energy Storage Systems (BESS). We are a self-organized, dynamic team dedicated to pushing the boundaries of technology and innovation in renewable energy storage. 

As one of our BESS Engineers, you will be developing and overseeing the design, integration, and safety standards for our battery energy storage solutions. You’ll provide technical solutions across the entire project portfolio, ensuring excellence in every stage of the engineering lifecycle. 

What You Will Do 

In this technical execution-focused role, you will drive the engineering and technical development of our BESS projects, ensuring highest engineering standards throughout the project lifecycle and contributing to innovation in tools and methodologies.  

Key responsibilties include: 

Engineering Design and Feasibility: Develop and oversee technical work packages, ensuring optimal system design from both technical and commercial perspectives. 

Delivery Oversight & Continuous Improvement: Technical delivery of monitoring progress and quality during the delivery phase, supporting the Project Manager. Ensure that lessons learned on technical matters are captured and processed for portfolio-wide improvement. 

Technical Ownership of BESS Layouts and Technical Drawings:  Lead BESS layout development by streamlining early-stage designs, maintaining standards, ensuring regulatory compliance, guiding project teams, and continuously improving documentation and templates. 

Tool and Methodology Development: Create and refine engineering processes, methodologies, and tools to enhance project outcomes and technical practices. 

Supplier Management: Collaborate with Procurement to manage supplier relationships, assess technical feasibility, and negotiate project-specific agreements. 

Stakeholder Collaboration: Work cross-functionally to align technical objectives with broader project goals, ensuring effective communication and integration.

Education 

• A Master’s degree in engineering (preferred) or a Bachelor’s degree with equivalent experience in disciplines such as electrical, mechanical, or civil engineering. 
• Business fluency in German and English required 
• A minimum of 3-5 years of professional experience in engineering roles, ideally in renewable energy, energy storage, or adjacent industries. 
• Proficiency in CAD software. Experience with permitting documentation and authorities is a plus. 
• Project management qualifications such as IPMA, PMP, or similar are beneficial but not mandatory. 
• Systems engineering qualifications such as INCOSE are also advantageous but not a requirement. 

Who You Are 

You are a collaborative and dynamic individual who thrives in an innovative, fast-paced, and sometimes ambiguous environment. You are curious and eager to extend your knowledge and expertise in the BESS sector. Your problem-solving skills enable you to approach challenges strategically and deliver practical solutions that drive success. With a passion for sustainability, you are committed to achieving technical excellence. You value teamwork and possess strong interpersonal and communication skills, allowing you to work effectively with diverse groups and stakeholders. 

Why Join Us? 

• Purpose-Driven Work: Contribute directly to a fossil-free future through innovative energy storage solutions. 
• Collaborative Environment: Be part of a self-organized, empowered team that values inclusivity, autonomy, and shared success. 
• Opportunities for Growth: Build on your technical expertise while developing your skills for future career advancement. 
• Competitive Compensation: Enjoy a comprehensive benefits package designed to support your professional and personal well-being. 

More Information 
We welcome your application in English no later than, 14.09.2025. We kindly request that you do not send applications by any means other than via our website as we cannot guarantee that we will be able to process applications that are not made via our website. 

For more information about the recruitment process you are welcome to contact our recruiter Cristina Sigel via mail: cristina.sigel@vattenfall.de

At Vattenfall we are convinced that diversity contributes to build a more profitable and attractive company and we strive to be good role model regarding diversity. Vattenfall works actively for all employees to have the same opportunities and rights regardless of gender, ethnicity, age, transgender identity or expression, religion or other belief, disability or sexual orientation.

If you’re ready to take on a significant technical role and help us drive engineering excellence in the battery energy storage industry, we’d love to hear from you! 

Vattenfall is a European energy company with approximately 21 000 employees. For more than 100 years we have electrified industries, supplied energy to people’s homes and modernized our way of living through innovation and cooperation. Our mission is clear: fossil freedom. To reach this ambitious goal, we are looking for talented individuals who combine personal drive with strong team spirit and a passion for contributing to a meaningful corporate mission.