Auxiliar Administrativo - Internship

Innotaxes; Alcobendas; Presencial; EUR 6700 - 12.000; A tiempo parcial

Ventajas ofrecidas por este puesto de trabajo

Mentorship & training

International team exposure

Company trips

Wellness activities

Transport benefit card

Descripción de la vacante

Innotaxes is seeking an Auxiliar Administrativo in Madrid to support document management, client coordination, and finance operations. You will assist with invoices, tax documentation, and cross-border processes in a fast-paced international environment.

Role focuses on hands-on training with a3 software, bank reconciliations, and supporting Account Managers. 30-hour weeks with an educational internship stipend.

Formación

• Native Spanish level (C1-C2) or equivalent proficiency.
• Familiarity with a3 management software is advantageous.
• Degree in ADE, Finance or related field is required.
• 6–12 months in a consultancy, tax advisory, or fast-paced admin environment.

Responsabilidades

• Manage document workflow: review, classify, and archive invoices and tax docs.
• Coordinate with Account Managers and Management to keep files organized.
• Perform bank reconciliations and support data transfer into systems.
• Provide logistics support during peak quarterly/monthly closings.

Conocimientos

Spanish proficiency (C1-C2)

Attention to detail

Time management

Adaptability

Educación

Degree in ADE, Finance, or related

Herramientas

a3 management software

Descripción del empleo

We are looking for an Auxiliar Administrativo to help us grow our Innotaxes team in Spain.

This is not just a role — it is a key opportunity to streamline our cross-border operations, directly impact efficiency, and grow within a fast-paced international tax consultancy environment.

Document Management & Quality Control

• Review, classify, and digitally archive invoices and formal tax documentation for clients across multiple global markets.
• Ensure all client files are fully organized, accurate, and up to date
• Act as a horizontal support pillar for our Account Managers (AMs), Management and Accounting
• Monitor deadlines closely and send timely alerts

International Client Relations

• Proactively contact team members (covering EN, RU, JPN markets) to request and follow up on required paperwork.
• Maintain an exceptional standard of client coordination to prevent communication bottlenecks.
• Provide hands-on technical support by performing bank reconciliations before data is transferred to a3 software.
• Deliver logistical support during high-volume periods, such as quarterly and monthly tax presentation closings.

Hard Skills

• Native or C1-C2 Spanish level
• Valuable prior knowledge or familiarity with a3 management software.
• Degree in ADE, Finance, or related

Experience

• Minimum of 6 months to 1 year of prior experience working in a consultancy, tax advisory, or fast-paced corporate administrative environment.

Soft Skills

• Exceptional attention to detail and methodical organization.
• Strong time management abilities and capacity to handle multiple priorities.
• Assertive communication and great adaptability to learn new processes.

What We Offer

• Hands-on mentorship and training in real-world accounting and advanced tax management tools (a3).
• Continuous training and mentorship from an international team.
• Team-building, wellness, and creative activities.
• Our exciting Yearly Company Trip.
• Restaurant and transport benefit cards

Additional Information

• Working hours: 30 hours per week.
• Contract type: Internship with an educational stipend (Requires a study center agreement)

Auxiliar Administrativo - Internship Madrid, Community of Madrid, Spain, Spain