Senior Battery Engineer

About the role

Who is Re:Build Manufacturing Re:Build Manufacturing, LLC (Re:Build) is a rapidly growing family of industrial businesses combining enabling technologies, operational superiority, and strategic M&A to build America's next generation industrial company. At Re:Build we deploy deep expertise in operations management and technology to supercharge performance of our subsidiaries by implementing core technologies across industrial platforms in diverse growth markets. Our goal is to help revitalize the U.S. manufacturing base over the coming decades, creating substantial opportunities for our employees and the communities where we operate. We leverage deep professional expertise and a candid, principled operating culture to drive differentiated outcomes for our customers, our employees, our communities and our investors. Ours is a fast-paced environment where individuals can stretch and be challenged with a wide variety of opportunities and projects. We empower and support our employees to pursue their fullest potential and provide meaningful avenues for personal and professional growth. About Re:Build Battery Solutions Re:Build Battery Solutions is a turnkey battery provider focused on the design, development and manufacturing of durable, high-quality battery packs for motive and stationary energy storage applications. We also offer custom and off-the-shelf battery management systems (BMS) and we design and build battery process lines. We are committed to strengthening the US battery value chain by providing reliable, cost-effective, domestic technology solutions and exceptional customer service. Re:Build Battery Solutions is part of Re:Build Manufacturing, a family of industrial businesses combining cutting-edge enabling technologies, operational superiority, and strategic M&A to build America's next-generation industrial company. Who we are looking for As an Electrical Engineer at Re:Build, you will play a pivotal role in the design and development of advanced lithium-ion battery systems. You will be responsible for defining system architecture, creating electrical schematics, selecting and integrating electronics hardware, and performing critical thermal and power dissipation analyses. Your expertise will directly influence key technical decisions that enable Re:Build to deliver safe, high-performance battery modules and packs across automotive, aerospace, renewable energy, and industrial applications. You will support all phases of the program lifecycle - from concept design through prototyping, validation, and launch - working cross-functionally with mechanical, software, and manufacturing teams. Success in this role requires strong technical fundamentals, excellent analytical and problem-solving skills, and the ability to clearly communicate complex technical concepts to both internal and external stakeholders. What you get to do Develop Electrical System Architecture : Define and document high- and low-voltage distribution, interfaces, and protection systems for battery packs. Create Electrical Schematics : Own the schematic design of battery pack systems, including sensors, contactors, fuses, connectors, harnesses, and control electronics. Select and Integrate Electronics Hardware : Evaluate and specify components such as current sensors, power electronics, microcontrollers, and supporting hardware for safety, performance, and manufacturability. Perform Thermal & Power Dissipation Analysis : Conduct hardware heating and power dissipation calculations to ensure reliable operation across environmental and load conditions. Support Circuit Design & Validation : Contribute to the design, simulation, and bench testing of circuits for measurement, control, and protection. Ensure Safety & Compliance : Support DFMEA, functional safety (ISO 26262 or equivalent), and industry compliance requirements, including UL. Collaborate Across Functions : Partner with mechanical, software, program management, and manufacturing teams to integrate electrical design into robust and manufacturable products. Test & Debug : Develop validation test plans, analyze data, and troubleshoot electrical issues. Communicate Results : Prepare and present technical findings and recommendations to customers, suppliers, and internal leadership. What you bring to the team 3+ years of experience in system-level design for lithium-ion battery packs or related electrical systems. 4+ years of engineering experience in automotive, aerospace, industrial, or related sectors. Strong proficiency in electrical system design and schematic capture. Knowledge of electronics hardware thermal management and power dissipation analysis. Experience with component selection and integration for high-voltage and low-voltage systems. Familiarity with high-voltage safety standards, EMC/EMI practices, and grounding/shielding. Excellent verbal and written communication skills, with the ability to explain complex technical issues clearly. Strong

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