Principal Cell Design Engineer – Cell Design
Location: Oxford, UK
Department: Cell Technology / Cell Design
Line Management: Yes (4 direct reports)
Reporting To: Cell Design Manager – Cell Technology / Cell Development
Purpose of the Role
At Agratas, Tata Group’s global battery business, we’re on a mission to design and manufacture next-generation lithium-ion batteries to accelerate the shift to electric mobility and clean energy storage. We’re building a team of the brightest minds in battery technology – and we’re looking for a Principal Cell Design Engineer to lead innovation in lithium-ion cell development.
Key Responsibilities
* Develop and execute test plans to optimise anode, cathode, separator, and electrolyte design.
* Align designs with performance, energy density, safety, and lifecycle targets.
* Evaluate and select active materials, binders, and electrolytes based on electrochemical properties and scalability.
* Act as SME in vendor engagements.
* Transition lab-scale designs to pilot-scale production.
* Develop material and assembly specifications; lead cross-functional design reviews.
* Integrate design strategies to enhance large-scale manufacturability, yield, and cost efficiency.
* Drive continuous improvement and innovation in performance, safety, and cell architecture.
* Lead and mentor a team of four engineers.
* Foster strong relationships across technical teams and stakeholders.
Qualifications and Experience
* PhD (preferred) or advanced degree in Materials Science, Electrochemistry, Chemical Engineering, or similar.
* Deep understanding of Li-ion cell chemistry, architecture, and electrochemical principles.
* Expertise in electrochemical testing techniques: GITT, EIS, HPPC, CV, dQ/dV, etc.
* Proven experience designing and scaling cell prototypes from concept to pilot line.
* Strong background in material selection and hands-on characterisation (SEM, XRD, DSC).
* Familiarity with APQP milestones, DFMEA participation, and statistical experimental planning.
* Ability to derive and validate cell-level requirements from pack/system level.
* Strong analytical thinking and structured problem-solving skills.
* Experience in customer-facing technical roles as a subject matter expert.
Desired Specialisations
* Experience with high-Ni cathodes, silicon anodes, or LFP chemistries.
* Proficiency in root cause failure analysis and contingency planning under tight timelines.
* Familiarity with PLM systems and design review tools.
Why Agratas?
* The chance to shape one of the UK’s most exciting clean energy initiatives.
* Working alongside world-class experts in a purpose-driven environment.
* An inclusive, mission-led team focused on delivering real impact.
* A commitment to personal and professional development.
Interested in building the batteries of tomorrow? Apply today or reach out to our recruitment team to find out more.
#J-18808-Ljbffr