Job Summary: We are seeking an Administrative Assistant to manage information, organize daily tasks, support the department, and carry out administrative duties using corporate tools. Key Highlights: 1. Opportunity for professional growth within a solidarity- and social-oriented organization. 2. Being part of a vocation-driven team focused on people. 3. Participating in volunteer activities and innovation projects. Can you imagine your professional career contributing to social change and transformation? WE’RE LOOKING FOR YOUR TALENT! At ONCE, we are seeking an Administrative Assistant for an indefinite-term position at our León Agency. WHAT WILL YOU DO DAILY? * Manage information within the department/work center. * Handle daily tasks such as registering, organizing, and archiving correspondence, files, records, etc. * Support department members with tasks and projects. * Perform tasks using the corporate desktop (SAP), email, and Office 365. * Prepare reports, presentations, and document summaries. * Provide administrative support to other teams. WHAT DO WE NEED FROM YOU? (Requirements) * Vocational Training Level I or II related to administrative functions. * Experience in administrative functions. * Proficiency in Microsoft Office applications, especially Word, Excel, and Outlook. * Knowledge and experience using applications within the Corporate Desktop environment and SAP. WHAT ELSE DO WE VALUE? (Desirable Requirements) * People-oriented mindset. We love teamwork and have a strong service vocation! * Experience in dynamic and multidisciplinary environments. * Minimum two years of relevant experience is preferred. WHAT DO WE OFFER? * Indefinite-term contract. * Full-time schedule of 36 hours/week—goodbye to 40 hours/week! - Competitive salary of +€17,000 gross/year; after two years, promotion to Senior level with salary of +/- €24,000 gross/year. * 24 working days of vacation + 6 personal days for private matters. * Annual individual training allowances—we want you to keep growing! * ONCE Card: Offering exclusive discounts. * Financial assistance for birth or adoption of children. * Opportunities for anyone to participate in volunteer activities and contribute to community well-being. * ONCEInnova: We have an innovation and entrepreneurship unit where any employee can propose and join intrapreneurship and innovation projects at ONCE. You’ll have the opportunity to join a solidarity- and social-oriented, committed organization—FOR PEOPLE AND BY PEOPLE—fully aware of its societal responsibility, which will support you throughout your onboarding process and offer opportunities for professional growth. You decide how far you go!