Purpose of the Role Agratas is on a mission to power a more sustainable future. As a wholly owned subsidiary of Tata Sons, we are designing, developing, and manufacturing cutting-edge lithium-ion batteries for the mobility and energy storage sectors. Backed by Tata’s legacy and scale, we’re a bold and ambitious scale-up with a start-up mindset – and we’re just getting started. At our state-of-the-art Cell R&D Facility in Oxfordshire, we’re building something special. Now, we’re looking to expand our talented Cell R&D Function with a passionate Semi Solid State Battery Scientist ready to lead innovation at the forefront of battery technology. We are seeking a Subject Matter Expert in the field of Semi-Solid-State Batteries (SSSB) or All-Solid-State Batteries (ASSB) to join the Fundamental Research Team. Reporting to the Head of Research, this role is ideal for a SSSB/ ASSB Expert with a track record of delivering cell technology solutions to the EV market, beyond the performance of current high-energy density Li-ion chemistries – someone who has is keen to make significant contributions by taking SSSB/ ASSB concepts to pilot scale. Key Responsibility Areas he candidate should know the state of art cell design in most relevant aspects such as materials chemistry, stack pressure considerations, key components integration, failure modes and suppression strategies. Knowledge of IP management (filing applications, patent search, analysing prior art and freedom-to-operate) would be advantageous. The Candidate Must Have/demonstrate We are looking for an expert in the field of ‘semi solid state batteries’ (SSSB) or ‘all solid state batteries’ (ASSB). The individual must have/demonstrate: Practical experience in the field of SSSB/ASSB. Designing and/or prototyping SSSB/ASSB cells. Expert knowledge of state-of-the-art SSSB/ASSB in areas such as materials chemistry, stack pressure requirements, interface engineering, failure modes and suppression strategies. Deep knowledge of materials science, chemistry, analytical sciences, electrochemistry and lithium-ion cells. In-depth knowledge of IP portfolio management (filing applications, patent search, analysing prior art). Ideal Background A graduate degree in materials science, chemistry or electrochemistry. Job Context Why Join Us? This is a chance to influence the future of battery technology from the inside – working with some of the best minds in the field in a fast-paced, purpose-driven environment. We offer competitive compensation, flexible banding for the right talent, and significant career progression opportunities. At Agratas, we do more than build batteries – we build futures. This is your chance to join a fast-moving business that combines the agility of a start-up with the resources and stability of Tata Sons. Here, your work will directly contribute to the clean energy transition. You'll be supported, celebrated, and empowered to do the best work of your career – while being your authentic self. We believe innovation thrives in a culture of inclusivity. At Agratas, we actively welcome applications from people of all backgrounds, races, genders, abilities, and identities. If you require any adjustments during the recruitment process, please let our Talent Acquisition team know.