**Summary:** We are looking for a skilled Battery Research Engineer to join our team, to contribute to developing advanced lithium-ion batteries for next-generation XR devices. **Required Skills:** Battery Research Engineer Responsibilities: 1. Manage battery research lab, lead capital projects 2. Develop materials (for example electrodes, electrolytes) for advanced Lithium-ion batteries 3. Build prototype battery cells using a mix of off the shelf and custom materials 4. Test batteries using standard testers such as Maccor and Arbin 5. Analyze test data, perform battery tear downs and failure analysis, and prepare reports 6. Prepare and maintain battery testing Standard Operating Procedures **Minimum Qualifications:** Minimum Qualifications: 7. Bachelors or equivalent degree in the field of Mechanical Engineering, Electrical Engineering, Aerospace Engineering, Chemical Engineering, Applied Physics, Material Science, or related field. 8. 2+ years of experience working in a battery lab, including battery material synthesis, electrode fabrication and formulation, electrolyte formulation, cell design and construction, etc. in academic or industrial environment. 9. 2+ years of experience working with battery testers such as Maccor and Arbin 10. 2+ years of experience performing data analysis and preparing reports **Preferred Qualifications:** Preferred Qualifications: 11. Masters in Mechanical Engineering, Electrical Engineering, Aerospace Engineering, Chemical Engineering, Applied Physics, Material Science, or related field. 12. Experience with chemical and physical characterization techniques, e.g., SEM, EDS, Raman, XRD, and XPS, and particle size determination. **Public Compensation:** $111,000/year to $131,000/year + bonus + equity + benefits **Industry:** Internet **Equal Opportunity:** Meta is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Meta participates in the E-Verify program in certain locations, as required by law. Please note that Meta may leverage artificial intelligence and machine learning technologies in connection with applications for employment. Meta is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process. If you need any assistance or accommodations due to a disability, please let us know at accommodations-ext@fb.com.