Senior Executive Assistant

• 13 juillet 2026 • 100% • Indefinite duration • Villigen PSI L-Institut Paul Scherrer PSI is the largest research institute in natural sciences and engineering in Switzerland. At PSI, we conduct cutting-edge research in the fields of future technologies, energy and climate, health innovation, as well as the foundations of nature. Through fundamental and applied research, we work on sustainable solutions for central questions of society, science, and the economy. The training of young people is a central concern of PSI. This is why approximately one quarter of our employees are postdocs, doctoral students, or apprentices. In total, PSI employs 2300 employees.  For the secretariat and office management of the PSI Chief of Staff, we are looking for an exceptionally poised and determined personality as Your tasks This position is aimed at an experienced person, accustomed to operating at the highest level of management. With precision, foresight, and a keen sense of priorities, you manage complex processes and lead files to completion reliably. You navigate with confidence in the tension field between science, politics, administration, and economy, and know how to professionally accompany a very diverse range of interest groups on an equal footing. • Prospective management of a complex agenda as well as preparation, coordination, and follow-up of the Chief of Staff's affairs  • Autonomous preparation of correspondence, files, and presentations  • Preparation and follow-up of meetings  • Planning and accompaniment of high-ranking guest visits from scientific, political, economic, and international organization circles  • Organization of events as well as national and international travel  • Ensuring efficient processes as well as continuous improvement of administrative processes  • Participation in the management secretariat as well as replacement of the head of the management secretariat and support of transversal management and coordination tasks Your profile • Several years of experience as an executive assistant, management assistant, or in a comparable demanding assistant function in a management, administration, or cabinet services environment  • Great sense of organization, great autonomy, and excellent prioritization skills  • Impeccable command of German as well as excellent knowledge of English  • The highest requirements in terms of quality, precision, and reliability  • Confident presence, diplomacy, and pleasure in dealing with demanding internal and external stakeholders  • Ability to assimilate quickly, pragmatic orientation towards solutions, and ability to remain calm and focused even under pressure  • Great discretion, loyalty, and reliability We offer Our institute is based on interdisciplinary, innovative, and dynamic collaboration. In addition to systematic integration, you benefit from individual development opportunities and our well-developed culture of continuous training. For questions relating to the optimal reconciliation between work and family or personal interests, we support you with modern employment conditions and on-site facilities.  For professional information, please contact Sandra Denk, tel. +41 56 310 47 46. We look forward to receiving your application online (ref. 1100). Institut Paul Scherrer, People & Culture, Chantal Büchi, 5232 Villigen PSI, Suisse www.psi.ch