Mechanical Engineering Intern (Summer 2027)

Castelion is seeking a Mechanical Engineering Intern for Summer 2027 to contribute to the design, testing, and integration of next-generation missile systems in a fast-paced startup environment. The intern will assist with component design, simulations, prototyping, and system integration while collaborating with cross-functional engineering and manufacturing teams. This role offers hands-on experience in aerospace engineering and mentorship from industry experts.