Contribute to the mechanical design, prototyping, and testing of a bionic elbow mechanism. Work closely with engineers to iterate on design constraints for performance, comfort, durability, and manufacturability. English communication is required. Full‑time availability preferred; flexible hours possible. Hybrid/remote is possible; be ready to relocate to Sousse if needed. Outstanding interns may receive a stipend and potential post‑graduation opportunities. Applications must be submitted via the official form only; email submissions are not accepted.