International Customer Service Assistant (m/f/d) Req ID: 15990 RATIONAL International AG, based in Heerbrugg, is strengthening its team and is looking for a committed, service‑oriented individual to join us as an International Customer Service Assistant. In this role, you will support our international sales organization in ensuring efficient market operations. You will act as the first point of contact for internal and external customers, distribution partners, and regional sales managers – con…