Get to know East Penn! Navitas Systems LLC, a leader in comprehensive energy storage solutions, was formed in 2011 with the merger of MicroSun Innovative Energy Storage Solutions and MicroSun Electronics, and the acquisition of lithium battery company A123 Systems' Government Solutions Group. In 2019, East Penn Manufacturing, one of the world's leading battery manufacturers, acquired majority interest in Navitas Systems. In SEVEN remarkable decades, East Penn has grown from a one-room shop with a product line of five automotive batteries to one of the world's leading battery manufacturers with over 10,500 full-time employees, 515 product designs, operations around the world, and hundreds of awards for industry excellence. At our Navitas facilities we engage in the research, design, development, and manufacture of advanced lithium cells and energy storage products and systems for both commercial customers and U.S. Government/military customers. We invest in our people, they are and always will be the heart of this company. Are you ready to join a family-owned enterprise committed to honoring the contributions of everyone? Then Navitas is the right place for you. Overview Navitas is ready to invest in you! We are currently seeking a Product Engineering Intern to join our team for a Fall 2027 internship. We are looking for a motivated and detail-oriented Product Engineering Intern to support the development and manufacturing of advanced lithium-ion battery systems. This role provides hands-on experience in product design, validation, manufacturing support, and cross-functional collaboration within a fast-paced battery manufacturing environment. The intern will work closely with engineering, quality, and manufacturing teams to help improve product performance, reliability, and scalability. Responsibilities Support design, validation, and release of lithium-ion battery modules and pack components Assist in conducting performance testing, validation testing, and failure analysis of battery cells and systems Analyze test data using tools such as Excel, MATLAB, or Python to identify trends and recommend improvements Collaborate with manufacturing engineering to resolve production issues and implement process improvements Create and maintain engineering documentation, including BOMs, drawings, test plans, and reports Participate in root cause analysis (RCA) and corrective action initiatives Support prototype builds and pilot production runs Assist in DFMEA, PFMEA, and design reviews Ensure compliance with safety and regulatory standards related to lithium-ion battery systems Qualifications Currently pursuing a Bachelor's or Master's degree in Mechanical Engineering, Electrical Engineering, or related field Must be a US Citizen or be a valid green card holder Strong analytical and problem-solving skills Basic understanding of lithium-ion battery fundamentals (electrochemistry, thermal management, BMS concepts) Proficiency in Microsoft Excel; experience with data analysis tools (MATLAB, Python) preferred Familiarity with CAD software (SolidWorks, NX, or similar) is a plus Strong written and verbal communication skills Ability to work on-site in Ann Arbor, MI Learning Outcomes By the end of this internship, the candidate will: Gain hands-on experience in lithium-ion battery product development and manufacturing Develop skills in cross-functional engineering collaboration Understand the full product lifecycle from prototype to production Build technical competency in battery performance validation and root cause analysis