Senior Product Development Engineer

Reports To: Director of Product Engineering

Employment Type: Full-Time

EGI Battery is a U.S.

-based manufacturer of advanced lithium-ion batteries, focused on delivering NDAA-compliant energy solutions for critical applications. Headquartered in Ann Arbor, Michigan, EGI is building a secure, domestic supply chain to support the growing demand for high-performance batteries in drone, eVTOL, and energy storage markets.

EGI Battery is seeking a highly motivated and technically versatile Senior Product Development Engineer to support the development, industrialization, and launch of advanced lithium-ion battery products. This role serves as a key technical resource bridging Product Engineering, Design Release Engineering (DRE), and Process Engineering functions throughout the product lifecycle. The successful candidate will lead activities from early-stage research and development through prototype and pilot production while ensuring a successful transition into full-scale manufacturing.

The ideal candidate will possess a broad engineering background with experience in product design, manufacturing processes, technical documentation, and production launch activities. Working closely with R&D, Manufacturing, Quality, Supply Chain, Equipment Engineering, and external suppliers, this individual will help ensure products meet performance, quality, reliability, manufacturability, and cost objectives.

• Support the development of lithium-ion battery products from concept through production launch.
• Collaborate with R&D teams to transform concepts into manufacturable products.
• Develop and maintain product specifications, engineering requirements, and technical documentation.
• Evaluate product performance, reliability, safety, and manufacturability during all phases of development.
• Support prototype builds, engineering trials, pilot production activities, and validation testing.
• Conduct technical analysis, root cause investigations, and corrective action implementation.
• Participate in product design reviews and cross-functional engineering reviews.
• Support customer, supplier, and internal technical discussions as required.

• Create, release, and maintain engineering drawings, specifications, bills of material (BOMs), and related documentation.
• Manage product configurations and engineering change control processes.
• Lead Engineering Change Requests (ECRs) and Engineering Change Orders (ECOs).
• Ensure designs meet functional, manufacturing, quality, safety, and cost requirements.
• Coordinate design reviews and approval processes.
• Maintain document control and product traceability throughout the product lifecycle.
• Support implementation and maintenance of PLM and document management systems.

• Develop and optimize manufacturing processes for battery products and assemblies.
• Support process development activities from laboratory and prototype environments through pilot manufacturing.
• Collaborate with equipment suppliers and manufacturing personnel to establish robust production processes.
• Develop process flow diagrams, manufacturing procedures, work instructions, control plans, and related documentation.
• Improve manufacturing safety, quality, yield, throughput, and cost performance.
• Lead troubleshooting and resolution of process-related manufacturing issues.
• Support process validation, capability studies, and continuous improvement initiatives.
• Assist in the specification, installation, qualification, and startup of manufacturing equipment.

• Act as the primary technical liaison between R&D and Manufacturing.
• Assist with Design for Manufacturability…