Job Summary: We are looking for an administrative assistant to manage documentation, support customer procedures, and perform back-office tasks in a dynamic company. Key Points: 1. Management of administrative documentation and legalization of installations. 2. Support in customer procedures and back-office tasks. 3. Opportunity for a responsible, organized, and proactive individual. **Main Responsibilities:** * Manage and archive the company’s administrative documentation. * Register invoices in the management software, monitor their status, and keep them up to date. * Support the processing of customer requests and requirements. * Manage documentation for installation legalization and applications for grants or subsidies. * Support back-office tasks: preparation of budgets, order tracking, coordination with suppliers, and support to the technical team. * Telephone assistance and management of administrative emails. **Requirements:** * Education in Administration or related field. * Proficiency in office tools (Excel, Word, Outlook) and management software. * Responsible, organized, and proactive individual. * Prior experience in administrative departments or service/installation companies will be valued. Type of position: Part-time Expected hours: 20 per week Benefits: * Flexible working hours * Company laptop * Optional remote work Work location: On-site employment