Product Engineering: Materials Intern (Summer 2027)

About the role

Clarios is the force behind the world’s most recognizable car battery brands, powering vehicles from leading automakers like Ford, General Motors, Toyota, Honda, and Nissan. With 18,000 employees worldwide, we develop, manufacture, and distribute energy storage solutions while recovering, recycling, and reusing up to 99% of battery materials—setting the standard for sustainability in our industry. At Clarios, we’re not just making batteries; we’re shaping the future of sustainable transportation. Join our mission to innovate, push boundaries, and make a real impact. Discover your potential at Clarios—where your power meets endless possibilities.

Responsibilities

• Support the Electrochemical Development Team with investigating and evaluating raw materials for lead-acid battery production.
• Build, test, monitor, and teardown experimental 2-volt test cells trialing battery material changes.
• Analyze test data, and create engineering reports, presentations, and data visualizations to communicate findings.
• Work primarily with lead-acid batteries with exposure to other battery technologies (lithium-ion, sodium-ion, and super capacitors).
• Create lab procedures and test documentation.
• Collaborate cross-functionally with systems engineering, procurement, and supplier quality to launch material changes that best meet our customer requirements.
• Investigate 2-volt test cell performance data and material claims from suppliers.
• Review the differences between various raw materials from suppliers.
• Document test methods used and testing observations.
• Be present and engaged in a lab environment and follow all lab safety procedures and training.

Requirements

• Currently enrolled as a full-time student at an accredited U.S. college or university
• Pursuing an undergraduate degree in Chemical Engineering, Materials Engineering, Chemistry, or Electrochemistry.
• Ability to be in the greater Milwaukee area in the summer.
• Duration: Summer 2027. Up to 40 hours per week.
• Working Arrangements: Hybrid internship – must have a quiet workspace away from interruptions, with the option to work in the office. Be able to maintain regular contact with the supervisor/team via virtual methods.
• Applicants must be authorized to work for any employer in the US without the need for sponsorship, now or in the future.

Benefits

• Global market strength and worldwide market share leadership
• HQ location earns LEED certification for sustainability plus a full-service cafeteria and workout facility
• Clarios has been recognized as one of 2026's Most Ethical Companies by Ethisphere. This prestigious recognition marks the fourth consecutive year Clarios has received this distinction.