Job Summary: We are seeking an administrative professional to support various departments, manage documentation and invoicing, and handle customer inquiries, requiring proactivity and teamwork. Key Highlights: 1. Comprehensive administrative support and document management. 2. Key role in accounting and customer service regarding invoicing. 3. Opportunity at a financially stable company with a positive working environment. Responsibilities - Various administrative tasks: document management, call reception, etc. * Support for other departments to ensure alignment across the organization. * Accounting of invoices. * Responding to customer inquiries regarding invoicing. * Email management. * Reviewing, preparing, and issuing invoices. * Processing credits. Requirements - Prior experience in a similar position for at least one year. * Higher Vocational Training (FP2) in Administration or university studies, preferably in Administration. * Knowledge of accounting, advanced Excel, and digital competencies. * Ability to work effectively in a team. * Responsible, committed, and proactive individual. Offer - Permanent contract from day one. * Large and financially stable company. * Positive working environment. * Winter schedule: Monday–Thursday 8:30–17:30, Friday 9:00–14:30 / Summer schedule (from June 16 to September 15): 7:45–15:15. * Salary according to collective agreement. * Company parking.