As a Battery System Engineer at Meta, you will take ownership of the Battery pack electrical designs and their integrations to power the state-of-the-art devices developed by Reality Labs. You will work closely with our product engineering teams to define battery requirements, aiming to find optimal options for product volume, weight, and run time. You will provide build support during New Product Introduction activities to ensure that manufacturing processes align with design intent. Collaboration with safety, reliability, operations, software and other cross-functional partners will be essential to integrate the battery into the final system and meet system level performance metrics. Supporting final assembly activities at supplier sites to ensure proper integration of the battery into the final system will be part of your duties, as well as assisting the sourcing team with cost analysis, supplier audits, and market analysis.

Work with product groups to define and deliver battery packs as per requirement

Work with vendors to develop battery packs per Meta’s requirements

Develop Electrical and interconnect architectures for battery management systems

Develop engineering requirements and specifications, test and validate plans for manufacturing and characterization of battery packs

Develop test boards and test fixtures to validate the performance of batteries

Develop processes, frameworks and best practices to scale designs across multiple programs

Develop Electrical and thermal battery characterization requirements

Support hardware integration related to interfacing hardware and connection issues

Provide build support during early New Product Introduction builds to ensure that the process can meet the design intent

Perform failure analysis, root cause analysis and create corrective action plans; communicate problems and solutions to cross functional team members

Identify system interactions and design factors which impact battery module performance such as charge time affected by system thermals and battery age, interaction with accessories and help assist product claims on battery runtimes

Perform battery gas gauge performance characterization at both module and system levels

Support software integration of batteries into system for both functionality and performance

Domestic and international travel to suppliers and test labs as needed

Bachelor's degree in Electrical Engineering or related field, and/or equivalent industry experience

2+ years experience in working with Li-Ion batteries

Experience with Battery Management systems including fuel gauging

Experience applying electrical engineering fundamentals into product solutions

Experience working on consumer electronics

Experience with PCB schematic capture and layout design with Altium

Experience communicating with and working collaboratively with Product Design engineers and other hardware/software cross-functional team members

Experience with battery protection circuits, communication protocols such as I2C, UART, charger interactions

Experience adhering to and implementing responsible, ethical AI practices (e.g., risk assessment, bias mitigation, quality and accuracy reviews)

Electrical Engineering background in analog and digital circuits, schematic and layout capture tools

Demonstrated ability to integrate AI tools to optimize/redesign workflows and drive measurable impact (e.g., efficiency gains, quality improvements)

Experience in programming in languages such as Python or C and/or other scripting languages

2+ years of experience in supporting Lithium-ion battery based testing

Demonstrated ongoing AI skill development (e.g., prompt/context engineering, agent orchestration) and staying current with emerging AI technologies

Masters or PhD in Electrical Engineering or equivalent industry experience

Experience with high volume production

Experience with statistical tools, Design of Experiments and packages such as JMP or Minitab

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Battery Systems Engineer