Mechanical Engineering Intern — Ultrasonic Pressing Optimization

Seniority Intern
Posted Mar 12, 2026

Rolex — Geneva: Mechanical Engineering internship to optimise ultrasonic pressing parameters for watch components. 4–6 month position.

Overview

Rolex is a Swiss luxury watch manufacturer renowned for precision engineering, in‑house manufacture and exceptional craftsmanship. As a privately held, globally recognised marque, Rolex combines traditional horological skills with advanced manufacturing technologies and invests in the technical development and training of its workforce.

Role & Responsibilities

  • Design fixtures and holding systems to enable ultrasonic extraction/ejection of watch components with controlled decentring.
  • Define and implement an experimental plan (DOE) covering relevant process parameters.
  • Perform laboratory tests and measure/evaluate ejection (chassing) forces under varying conditions.
  • Analyse statistical influences on process outcomes and identify key factors.
  • Develop a predictive model to forecast process behaviour and establish the optimal operating window.
  • Validate model predictions with practical case studies representative of target production situations.

Qualifications

  • Currently enrolled in a Master's programme in Mechanical Engineering or equivalent.
  • Solid knowledge of general mechanics and mechanical design principles.
  • Proficiency in statistical methods and experimental design.
  • Comfortable working with and handling very small, precision components.
  • Autonomous, rigorous and highly meticulous; strong attention to detail.
  • Availability for a 4–6 month internship.

Skills

Fixture design for precision components Experimental design (DOE) Statistical analysis methods Predictive modelling Hands‑on micro‑component handling and test execution Data analysis and result validation

Experience

Student level internship; hands‑on laboratory or manufacturing experience with experimental testing and micro‑component manipulation is desirable but not mandatory.

Education

Enrolment in a Master's degree in Mechanical Engineering or equivalent technical discipline (in progress).

Benefits

Access to cutting‑edge manufacturing equipment; excellent working conditions; first‑rate social benefits.

Culture

Rolex maintains a culture of technical excellence, precision and discretion, where craftsmanship and rigorous quality control are paramount. The workplace emphasises hands‑on learning, internal skills development and collaboration between experienced technicians and engineers.