Your mission We are seeking a highly motivated and experienced Senior Scientist with expertise in cathode development for lithium-sulfur batteries. The ideal candidate must have a PhD in Materials Science, Chemistry, Electrochemistry or a related field and more than 5 years of hands-on experience specifically working within the field of lithium-sulfur batteries. This role will focus on developing advanced cathode architectures and their impact on resulting electrochemical properties. The successful candidate will join our dynamic team focused on developing next-generation lithium-sulfur battery technology. As an integral part of the team, you will play a critical role in the research, design, development and implementation of theion’s core technology and, contribute towards the improvement, scalability and commercialization of this technology. YOUR TASK Develop highly ordered sulfur cathode architectures using advanced material processing techniques. Establish and execute comprehensive protocols to evaluate the performance, cycle life, and stability of cathode materials in pouch cells. Conduct ex-situ and in-situ analyses using techniques such as EIS, CV, SEM, and XPS to understand cell behavior. Collaborate with interdisciplinary teams, including Materials Scientists, Chemists, Electrochemists, and Engineers, to drive innovation and progress. Effectively document and communicate project progress and technical challenges through technical reports and presentations to diverse teams. Contribute to patent filings by developing novel concepts in your area of expertise. Contribute to the scaling and commercialization of theion’s lithium-sulfur batteries in collaboration with multiple teams. Your profile PhD in Materials Science, Physics, Chemistry, Chemical Engineering, Electrochemistry, or a related field. 5 years of experience in lithium-sulfur battery research, with a strong focus on pouch cell development. Expert-level knowledge of sulfur-based cathode materials and strategies to address polysulfide shuttling, energy density, and cycle life challenges. Proficiency with material characterization techniques, including EIS, CV, SEM, and other relevant analytical methods. A proven track record of publications in peer-reviewed journals and/or patent filings. Excellent communication skills with the ability to work collaboratively in cross-functional teams. Why us? We offer complete flexibility in working hours to support your schedule, allowing you to balance your private life and work effectively. Joining our team provides you with the opportunity to gain practical experience in the dynamic field of battery technology within a collaborative and innovative work environment. You will be part of a forward-thinking company that values sustainability and cutting-edge technology. We prioritize your growth by providing access to state-of-the-art facilities and resources, enabling you to enhance your skills and knowledge. About us Headquartered in Berlin, Germany, theion GmbH is a pioneering high-tech start-up revolutionizing the mobile battery market. We specialize in the development and production of Crystal Batteries, addressing the world's most significant energy storage challenges across various sectors, from aerospace to consumer electronics. Our innovative approach utilizing sulfur in its crystal form promises to triple energy density while significantly reducing costs and environmental impact.