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Battery Cell Engineer

Confidential company · Berlin · Posted Aug 6, 2026

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Public summary

Lead battery cell engineer at a European defence technology company focused on next-generation unmanned systems. Responsible for sourcing, characterizing, modeling, and validating battery cells with Tier 1 suppliers to ensure reliable and safe power for unmanned platforms. Role includes evaluation of battery chemistries, testing and data analysis, failure investigation, supplier quality collaboration, and safety validation in line with industry standards and compliance needs. Requires eligibility for security clearance.

Location and work setup

Location
Berlin
Remote status
On-site
German requirement signal
No German Required Detected
Detected job language
English

Responsibilities

Scout and evaluate commercial prototype battery cells; select optimal chemistries meeting size, weight, and power targets. Design and conduct rigorous battery cell tests including HPPC, EIS, cycle life, aging, and extreme temperatures. Analyze testing data to develop equivalent circuit and degradation models. Lead failure root cause analysis and define physical failure assessments. Collaborate with suppliers on cell specifications, quality control, and acceptance testing. Perform battery abuse testing to validate safety parameters.

Qualifications

Bachelor's, Master's, or PhD in Materials Science, Chemical Engineering, Electrochemistry, or related field. At least 3 years of experience in battery cell engineering or manufacturing. Strong understanding of lithium-ion electrochemistry and degradation mechanisms. Experience programming and operating battery test equipment. Proficiency in Python, MATLAB, or R for data processing. Ideally experience with high C-rate profiles in aerospace or drone applications, working in battery manufacturing environments, and knowledge of next-generation battery technologies.

Skills

Electrochemistry Battery Cell Evaluation Battery Testing Data Analysis Python MATLAB R Supplier Quality Management Failure Analysis Safety Testing Hybrid Pulse Power Characterization (HPPC) Electrochemical Impedance Spectroscopy (EIS)