Navitas is ready to invest in you! We are currently seeking a Product Engineering Intern to join our team for a Fall 2026 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.***Candidate must be lawful permanent resident or US Citizen and be able to work on site in Ann Arbor, MI
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
- 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
Skills Required
- Currently pursuing a Bachelor's or Master's degree in Mechanical Engineering, Electrical Engineering, or a related field
- Must be a US Citizen or valid green card holder
- Strong analytical and problem-solving skills
- Basic understanding of lithium-ion battery fundamentals, including electrochemistry, thermal management, and BMS concepts
- Proficiency in Microsoft Excel
- Experience with MATLAB or Python for data analysis
- Familiarity with CAD software such as SolidWorks or NX
- Strong written and verbal communication skills
- Ability to work on-site in Ann Arbor, Michigan
What We Do
East Penn Manufacturing is a private, family-owned battery and energy-storage manufacturer. It produces lead-acid batteries, power-storage systems, accessories, and related solutions for automotive, transportation, motive-power, reserve-power, telecommunications, renewable-energy, and other applications. Founded in Pennsylvania, the company has grown from a small battery business into one of the world’s leading battery manufacturers, with thousands of employees, extensive distribution operations, and a broad product portfolio.
