Expert – Energy Storage System Solution and Architecture

Expert – Energy Storage System Solution and Architecture (m/f/d)

Become a key technical authority in the development of next-generation energy storage system architectures and solutions. In this role, you will research and design advanced system architectures for utility-scale, commercial & industrial (C&I), renewable co-location, and emerging high-power applications such as AI and HPC data centers.

You will lead the definition and evolution of end-to-end system architectures for utility-scale, C&I, renewable co-location, and high-power, high-availability applications.

You will translate evolving application, grid, and market requirements into system-level requirements, reference architectures, and optimized product configurations. Working across batteries, DC/DC converters, power conversion systems (PCS), transformers, switchgear, protection, thermal management, automation, and plant-level control, you will ensure architectural coherence from the grid connection down to the battery and DC subsystem.

As a senior individual-contributor technical leader, you will bridge advanced research, product strategy, and engineering implementation. Your work will shape future BESS products and technology roadmaps with improved efficiency, availability, safety, flexibility, scalability, and lifecycle value while addressing the rapidly evolving requirements of European power systems.

Your mission

• Future BESS Applications & System Requirements: Analyze future application requirements for utility-scale and C&I energy storage, including renewable co-location, PV + BESS, AI data centers, large industrial sites, and hybrid behind-the-meter and front-of-the-meter systems. Translate market and application trends into future system and product requirements.
• Next-Generation BESS Architecture: Research and develop advanced ESS/BESS architectures covering system topology, battery configuration, DC distribution, power conversion, protection, thermal management, and system-level control. Explore new architectures to improve system efficiency, reliability, safety, power density, scalability, and lifecycle value.
• AC/DC Coupling & Requirement Translation: Develop and optimize AC- and DC-coupled system architectures and translate grid-side and application requirements into DC-side specifications, including battery configuration, DC voltage/current range, DC/DC topology, PCS sizing, energy-to-power ratio, protection, and control requirements.
• Grid Integration & System Control: Analyze grid codes and system requirements including active/reactive power capability, overload and short-circuit behavior, voltage and frequency support, power quality, and grid-forming operation. Develop corresponding system architectures and coordinated control concepts for batteries, PCS, DC/DC converters, and plant-level controllers.
• System Modeling & Architecture Optimization: Develop and apply system-level modeling, simulation, and architecture evaluation methodologies using tools such as MATLAB/Simulink, PSCAD, PLECS, PowerFactory, or equivalent platforms. Evaluate architecture alternatives and optimize efficiency, availability, lifetime, performance, scalability, and total cost of ownership.
• System Integration & Validation: Drive cross-disciplinary integration of battery systems, PCS, DC/DC converters, protection, and plant-level control. Support prototype development, CHIL/PHIL testing, system-level validation, and engineering verification to bring new system concepts from research into practical product solutions.
• Technology Insights & Standardization: Track emerging technologies including high-voltage DC architectures, advanced PCS and DC/DC topologies, grid-forming BESS, multi-converter systems, and hybrid energy storage. Follow relevant European grid codes, standards, and standardization activities and provide technical insights for future product development.
• Technology Roadmap & External Collaboration: Collaborate closely with global research, engineering, and product teams to develop future technology roadmaps and translate advanced research into products. Build strong cooperation with leading European universities, research institutes, technology organizations, and industrial partners.

Your areas of expertise

• Master’s degree or Ph.D. in Electrical Engineering, Power Electronics, Power Systems, Energy Systems, Control Engineering, or a closely related field.
• Typically 10+ years of industrial or applied R&D experience in battery energy storage, grid-scale power conversion, power systems, or similarly complex electrical energy systems, with demonstrated senior- or principal-level technical responsibility.
• Deep expertise in BESS electrical architecture, power conversion, and grid integration, combined with strong system-level understanding of batteries and BMS, DC/DC converters, PCS/inverters, transformers, switchgear, protection, thermal management, automation, and plant-level control.
• Proven experience defining complex system architectures, reference architectures, system requirements, subsystem interfaces, or high-level technical specifications.
• Strong capability to translate grid, market, and application requirements into system architecture and component-level technical specifications.
• Solid expertise in power electronics, grid-connected energy storage, grid codes, grid-forming technologies, and coordinated control of complex multi-converter systems.
• Strong experience in system modeling and simulation for architecture design and optimization using MATLAB/Simulink, PSCAD, PLECS, PowerFactory, or comparable tools.
• Experience in architecture trade-off analysis considering efficiency, reliability, availability, safety, lifetime, scalability, performance, and total cost of ownership.
• Hands-on experience in prototype development, system integration, CHIL/PHIL testing, engineering validation, commissioning, or product development is highly valued.
• Proven technical leadership and project management experience, with the ability to lead multidisciplinary teams and drive complex R&D projects from concept and prototyping toward product implementation.
• Strong communication skills and experience working in international and cross-functional teams.
• Fluent in English.