Administrative/Project Assistant 80-100% CDI (M/F/D)

• 28 août 2026 • 100% • Durée indéterminée • Sion Want a versatile position where no two days are alike? We are looking for an Administrative/Project Assistant 80-100% CDI (M/F/D) Responsibilities • Prepare and follow up on estimates, commercial offers, and tenders • Participate in the preparation and coordination of tender documents • Ensure daily administrative management and general secretarial tasks • Ensure the administrative follow-up of files and ensure proper document maintenance • Support billing activities and the administrative and financial follow-up of mandates • Provide support to management and teams in the preparation of reports, presentations, and other administrative documents • Manage personnel administration (contracts, time tracking, absences, insurance declarations, preparation of salary elements, etc.) Profile • CFC as a commercial employee, ideally in the construction field • First successful experience in a similar administrative function • Experience in preparing estimates, offers, and tenders appreciated • Organized, rigorous personality capable of managing several priorities simultaneously • Team spirit, sense of service, and autonomy in work • Excellent mastery of French orally and in writing; any other language is an asset Benefits • A rich and varied activity offering a global vision of the company's operations • Rewarding responsibilities and real leeway in your function • Daily exchanges with various interlocutors in a stimulating environment • Modern working conditions promoting your professional development • Start date: to be agreed Contact information Please apply directly online. Confidentiality guaranteed. If you have any other questions regarding this job offer (reference: JN -072026-1136584), please contact Monsieur Raphaël Naoux at +41 58 233 31 60. About us Adecco Valais Permanent is your agency specialized in the search and placement of permanent personnel for the French-speaking Valais region and the Chablais vaudois. Thanks to our in-depth expertise of the local job market, we are committed to providing you with a quality service by connecting companies looking for talent with qualified and motivated candidates. #boost