Mechanical Engineering Intern - Summer 2026

Intramotev • Saint Louis, LA

102d

About The Position

At Intramotev, we are dedicated to revolutionizing the freight industry by liberating tons of freight from congested highways, reducing carbon emissions, and enhancing transportation efficiency. We are deploying self-propelled battery-electric railcars and vehicles to transform freight logistics and bring innovation to our rail network. Based in St. Louis, MO, we are committed to promoting industrial revitalization, saving lives, and minimizing the environmental impact of trucking/transportation. We actively foster a work environment for every teammate that’s welcoming, respectful and inclusive, with great opportunities for professional growth. Find your future with us. Intramotev is seeking Mechanical Engineering Internship candidates to join the Mechanical Engineering team to support the development of electric propulsion systems for self-propelled rail vehicles. This full-time, in-office paid position, based in St. Louis, MO, involves working in a dynamic team environment. Due to the research nature of the work, project objectives and requirements are likely to evolve.

Requirements

• Working towards a Bachelor's degree in mechanical engineering, electrical engineering, manufacturing engineering, or a related field.
• Previous internship, university research, or extra-curricular experience with electromechanical/multidisciplinary product design.
• Understanding of design for vehicle manufacturing processes.
• Experience with 3D modeling software and GD&T.
• U.S. Person (immigration or work visa sponsorship will not be provided).
• Fluent in both written and verbal English.

Nice To Haves

• Candidate should have a working knowledge of one or (ideally) multiple areas listed below: Rail Vehicles / Rail Systems.
• Vehicle Electrification / Powertrain Design / E-Axle Development.
• Electric Vehicle (EV) experience.
• Familiarity with thermal management system design.
• Familiarity with thermal analysis software (e.g., ANSYS, COMSOL) and CAD tools (e.g., AutoCAD).
• Demonstrated experience working on project teams and collaborating with other engineering disciplines.

Responsibilities

• Executes conceptual and detailed design tasks related to mechanical elements of the powertrain/drivetrain system.
• Contributes to the design and development of powertrain components including electric motors, gearboxes/transmissions, drivetrain suspension, drive couplings, cooling systems, and enclosures.
• Assists in designing and implementing powertrain testing infrastructure, including test stand fixtures and dyno equipment.
• Completes 3D mechanical design using relevant software (e.g., Autodesk Inventor, Fusion).
• Completes 2D drawings.
• Participates in design reviews and peer reviews.
• Collaborates with manufacturing colleagues to ensure Design for Manufacturing (DFM) requirements are met.

What This Job Offers

• Job Type: Full-time
• Career Level: Intern
• Education Level: Bachelor's degree
• Number of Employees: 11-50 employees