* Publication date: 21 January 2026 * Workload: 20% * Contract type: Temporary * Place of work: Lausanne, 1003 Lausanne * Salary estimate from jobup.ch : Log in, to see estimate from jobup.ch Are you currently studying at HES or HEC? Looking for an exciting 20% student job? Available to work 20% per week (Mon-Fri)? Do you have some initial experience in an operational role? Comfortable working in English? Are you a conscientious and curious person? Apply quickly! Localisation: Région Lausannoise Date de début: à convenir Durée: Temps partiel, 20%, 3 months mission Type de travail: Mission About the role Our client, an innovative startup specialized in environmental technology and emissions reduction, is looking for a student to support their Finance and HR Manager. This is a mission at 20% for 3 months, with a strong possibility of extension, based near the EPFL/UNIL campus. In this role, you will play a key role in supporting the daily operations of a fast-growing international company. You will be responsible for providing high-level administrative support across various departments, including HR and Finance. This is a perfect opportunity to gain valuable experience in a dynamic startup environment! Tasks * Provide general administrative support, including handling mail and professional correspondence. * Assist with HR duties such as preparing work certificates and verifying employee timesheets. * Support the Finance department with reporting and account consolidation tasks. * Act as a transversal link between different departments in an international environment. We are looking for * Currently a student in Business Administration, Finance, or a related field. * A first experience in administration and a strong mastery of MS Office (especially Excel). * English at a fluent level (working language) and French. * Organized, social, and intellectually curious with a strong ability to take initiative.