Administrative Assistant - Construction Projects Department

Ref 2588092 | Date: 29 Oct 2026 ISS SUISSE SA Administrative Assistant - Construction Projects Department (a) Administrative Assistant - Construction Projects Department (a) between 80 and 100 % ================================================================================= ### Workplace Geneva ### Activity rate between 80 and 100 % ### Start date to be agreed ### Is this you? Do you enjoy teamwork, demonstrate organization, and communicate with ease? In this role, you will provide reliable and flexible administrative support to the team in charge of construction projects. Thanks to your rigor and sense of priorities, you will contribute to the efficient monitoring of files, documents, invoices, and various deadlines. You enjoy administrative activities requiring precision and consistency, while remaining available to meet the varied needs of the team. In order to promote close collaboration with your colleagues and internal partners, a presence in the office of at least 50% of the working time is required. ### What awaits you * Ensure daily administrative support for the team in charge of construction projects * Manage the department's email inbox, incoming and outgoing mail, as well as routine correspondence * Contact and follow up with internal and external interlocutors to gather necessary information and documents * Create, organize, update, and archive project files in digital and physical formats * Open, track, and close projects in internal tools and client platforms * Ensure the entry, filing, and transmission of documents in accordance with defined processes * Maintain tracking tables, deadlines, and administrative, contractual, and financial data for projects * Prepare offers, credit requests, contracts, and orders intended for suppliers and contractors * Perform an initial administrative check of contracts, orders, and invoices * Follow document validation circuits and assist external partners in their administrative procedures * Process and follow up on supplier invoices as well as monthly project billing * Prepare final statements and assist in the administrative closing of projects * Manage supplies, material, and software necessary for the smooth functioning of the team ### What you bring * CFC in commercial employment or training deemed equivalent * First experience of 1 to 2 years in an administrative role, ideally in a project management environment * Knowledge of the construction sector is an asset * Excellent command of French, both spoken and written. * Basic knowledge of German desired. Knowledge of English is an asset * Very good mastery of the Microsoft Office environment, notably Word, Excel, PowerPoint, and Outlook * Knowledge of SAP, InvoiceR, CAFM Archibus, or Messerli is a big advantage * Comfort with remote working environments, notably Citrix, is appreciated * Excellent organizational skills and ability to manage multiple tasks simultaneously * Sense of priorities, reliability, and rigor in the execution of administrative activities * Proactive approach, ability to anticipate, and spirit of initiative * Autonomy in work, while enjoying team collaboration * Easy communication, sense of service, and ease in interactions with different interlocutors * Flexibility and ability to maintain a good overview during busy periods * Strong interest in data entry activities and repetitive tasks, control, and monitoring requiring precision, consistency, and concentration * Availability to occasionally take on varied tasks exceeding the usual administrative scope ### Ready for us? We are for you. At ISS Suisse, we ensure the smooth running and comfort of offices, laboratories, airports, production sites, stations, schools, and hospitals every day. Our more than 14'000 employees create, throughout Switzerland, living spaces in which more than a million people feel good and can thrive daily. ISS is synonymous with innovation, service quality, and proximity to customers. A leader in our market, we offer stable jobs, varied development perspectives, and a corporate culture based on esteem, occupational safety, and responsibility - materialized by five dedicated programs, more than 200 training and development sessions, as well as the systematic use of sustainable products and solutions. [About us](< >) [Employee testimonials](< >) ### Your contact Thomas Contenta Talent Acquisition Manager [Apply now](< >) jpid4482323jm jpit1044jm jpiy26jm