We are seeking a person for the position of Administrative Assistant, focused on invoice management within the financial sector. Key responsibilities include reviewing and validating already-registered invoices, carefully verifying amounts, taxable bases, VAT rates, and withholdings. It will also be necessary to identify and correct data errors, as well as incorporate missing or incomplete invoices. Attention will be paid to ensuring correct tax treatment for each type of invoice—such as those from notaries, self-employed individuals, or those subject to IRPF—and maintaining overall cleanliness of the invoicing database. Occasional administrative support will be provided to the back-office area. Previous experience in similar administrative or accounting tasks, along with basic knowledge of invoicing and invoice types, will be valued. Proficiency in Excel and comfort working with numerical data are important, as well as a methodical, responsible, and detail-oriented personality—someone calm and consistent, capable of maintaining focus on repetitive tasks. The working schedule is full-time: Monday to Thursday, 8:30 a.m. to 6:30 p.m. (with a one-and-a-half-hour lunch break), and Fridays, 9:00 a.m. to 3:00 p.m. Partial telework is possible.