Mechanical Design Engineer Intern

Join the Sonceboz adventure, a Swiss family business specialized in the design and manufacture of mechatronic drive solutions.

« From Mind To Motion »

With 1300 employees and recognized expertise, Sonceboz is a place where innovation comes to life and where ideas turn into concrete solutions for our customers.

From R&D to production, everything is done in-house. This total control allows us to combine cutting-edge innovation, industrial excellence, and a zero-defect quality goal.

Based in the heart of the Jura Arc, in Sonceboz-Sombeval and Boncourt, we operate in a region known for its industrial and technological expertise.

Several Mechanical Design Engineer Intern positions are available starting January/February 2026 at our two sites in Sonceboz-Sombeval and Boncourt.

Within an R&D team, you will participate in the design of mechatronic products (actuators, electric motors) and test/assembly fixtures:

Design & modeling:

• 3D modeling of parts and assemblies using SolidWorks
• Creation of 2D drawings with functional dimensioning (ISO 8015)
• Calculation of dimension chains to ensure assembly precision

Management & prototyping:

• Management of technical data in a PDM (Product Data Management) system
• Monitoring prototype manufacturing in coordination with the workshop
• Adjusting designs based on technical feedback