Job Summary: We are seeking an administrative assistant for a social consultancy in Barcelona, responsible for basic accounting, treasury, invoicing, internal HR tasks, and management of contracts with clients and suppliers. Key Highlights: 1. Flexible working hours and work-life balance 2. Excellent working environment 3. Possibility of teleworking We are a social consultancy located in Barcelona city and wish to incorporate a person into our administration department, performing the following administrative assistant duties: Basic-level accounting, treasury, and invoicing; Bank account monitoring, incoming and outgoing invoices, cash management, control of allowances or mileage… Taxes are handled by an external accounting firm; Internal HR: contract management (hiring/termination), working hour tracking, payroll processing, forwarding CVs to the HR manager… Taxes and payroll are also managed by an external advisory firm; Client file setup and contract management and follow-up; Supplier management and office purchases; Digital and physical company archiving; Bank transfers and supplier payment monitoring; Administrative procedures with public authorities * Minimum 3 years’ experience. At least 3 years’ experience using accounting and HR software, specifically within the third sector and public administration (tenders, competitions, and award procedures) * Higher Vocational Training Diploma (FP de Grau Superior) * Catalan (intermediate spoken and written proficiency) * English (intermediate spoken and written proficiency) * Competencies / knowledge: Education and languages: Catalan and Spanish are essential; intermediate level of English is required. Administrative vocational training (FPII) or equivalent. Intermediate-level Office or Mac suite (Word, Excel, PowerPoint…). Experience and training in accounting and HR software will be valued. Knowledge of the third sector and public administration (tenders, competitions, and award procedures) will also be valued * Permanent employment contract * Part-time position (18 hours per week) * Additional relevant information: Flexible working hours and work-life balance; Excellent working environment; Full-time option available (35 hours per week or equivalent); Centrally located and well-connected office (metro, buses, and Catalan railways); Possibility of teleworking one day per week; Monthly teleworking allowance included in payroll