Job Description

We pioneered the Organic SolidFlow battery

CMBlu Energy is on an exciting journey towards becoming a global cleantech companyOur mission is to enable unlimited energy storage modelled on nature - for everyone, worldwide

What are SolidFlow batteries?  

SolidFlow batteries store energy in organic molecules The absence of explosive materials makes them safe, the use of socially and ecologically conflict-free raw materials makes them sustainable and the almost unlimited availability of materials makes them scalable and cheap to procure This makes our patented SolidFlow technology a game changer in the development of a global climate-neutral energy system

From start-up to scale-upwe're tackling it together  

CMBlu Energy is developing from a start-up focussing on research into a manufacturing scale-up that is on its way to series productionAround 240 employees are working towards this goal at CMBlu Energy. Our head office is in Alzenau near Frankfurt, with a branch office in Obernburg. There are also subsidiaries in Athens, Greece and Petaluma, USA.  

Your Mission

We are seeking a highly motivated Battery Material Engineer to join our R&D team within the Posolyte team. The primary focus of this role is the synthesis, optimization, and characterization of inorganic solid capacity booster materials for next-generation solid flow batteries.

This position requires a strong background in electrochemistry and materials science, with hands-on experience in battery material development.

Your Responsibilities

• You design, synthesize and optimize inorganic solid booster materials for next-generation solid flow batteries
• You develop scalable synthesis routes and evaluate material performance in lab and prototype environments
• You perform advanced physicochemical and electrochemical characterization (e.g. XRD, SEM, TEM, BET, CV, EIS)
• You investigate structure–property relationships to improve stability, conductivity and overall performance
• You collaborate closely with cross-functional teams across electrochemistry, chemistry and scale-up
• You support integration of materials into full cell systems and analyze performance data

Your Profile

• Master’s or PhD in Materials Science, Chemistry, Chemical Engineering or a related field
• Proven experience in battery material development in academia or industry
• Strong expertise in inorganic material synthesis and characterization techniques
• Hands-on experience with electrochemical testing methods such as CV, EIS or galvanostatic cycling
• Independent, structured working style with strong analytical and problem-solving skills
• Clear communication skills in English and enthusiasm for interdisciplinary collaboration

Our Benefits at CMBlu Energy AG for You:

• VSOP Program With our Virtual Stock Option Program (VSOP), you can be part of the success of CMBlu Energy AG and benefit from the growth of our company.
• Deutschland-Ticket We fully cover the cost of a Germany-wide train ticket, allowing you to travel sustainably and comfortably.
• Meaningful work: Work on the development of our innovative Organic SolidFlow battery, which makes an important contribution to sustainable energy use and storage.
• Remote Work Depending on the role, we offer the possibility to workpartially remotely, if the position allows.
• Development Opportunities We support your personal and professional development through regular training sessions and exciting projects.
• Fair Pay We provide acompetitive and fair salary that recognizes your performance.
• Our Values At CMBlu Energy AG, being reliable, innovative, and relentless is at the core of our collaboration.

If you are ready to take on new challenges and drive innovation, we want to hear from you! At CMBlu, you will work with a passionate team that is committed to excellence and continuous improvement.

Apply now and be a part of our exciting journey. We look forward to welcoming you to our team!