Accountant (Madrid / remote)

At ACK3, we pride ourselves on being a leading Global Risk and Strategic Intelligence Consultancy. Established in 2010 by esteemed veterans of the Spanish Special Forces, our boutique has become a benchmark in the field of risk control and intelligence consulting. We excel in offering swift, customized solutions to a diverse clientele that includes private companies, individuals, and governments worldwide. With offices in Madrid and internationally, we are providing our clients with solutions, profitability, and market reputation.

Job offer: Accountant in Madrid / remote

Role overview

The Accountant will be responsible for the accounting operations of ACK3 and its international subsidiaries, ensuring compliance with both Spanish GAAP (PGC) and IFRS. This role combines hands-on accounting with exposure to multi-entity management, monthly closings, tax compliance, and group consolidation. A background in audit (Big4 or mid-tier firm) is highly valued, as it provides the analytical rigor and control mindset required to maintain financial accuracy and consistency across multiple jurisdictions.

Key responsibilities

- Manage day-to-day accounting operations for several entities (portfolio of companies): journal entries, AP/AR, expense control, supplier payments, and bank reconciliations.

- Oversee monthly, quarterly, and annual closings, ensuring accuracy and timeliness of financial statements.

- Maintain and optimize the Holded accounting system, ensuring accurate configuration, reporting, and automation.

- Prepare financial statements under Spanish GAAP (PGC) and assist in IFRS adjustments for group reporting.

- Perform intercompany reconciliations and support group consolidation processes.

- Support the financial planning and budgeting process, including preparation of annual budgets and forecasts.

- Manage tax compliance for Spanish entities, including VAT (IVA), Corporate Income Tax (CIT/IS), and withholdings (IRPF).

- Coordinate with external auditors and tax advisors for statutory audits and compliance matters.

- Prepare management reports and support the Finance Manager / CFO with financial analysis and insights.

- Identify opportunities to improve processes and strengthen internal controls.

- Collaborate cross-functionally with Finance,Operations, and HR to ensure accurate and timely financial information.

Requirements

- Degree in Accounting, Business Administration, Economics, or a related field.

- 3–5 years of accounting experience, ideally including prior experience in external audit (Big4 or mid-tier firm).

- Strong knowledge of Spanish GAAP (PGC) and IFRS.

- Experience in monthly closings, multi-entity accounting, and preparation of statutory financial statements.

- Solid understanding of Spanish taxes (VAT, CIT, withholdings).

- Experience with Holded or similar ERP/accounting tools.

- Advanced Excel skills (pivot tables, formulas, data analysis).

- Ability to work independently, manage priorities, and meet strict deadlines.

- Proficiency in English (B2 level or above).

- Analytical, detail-oriented, and highly organized.

- Proactive and adaptable, with a focus on continuous improvement and collaboration.

Selection process

The recruitment process consists of two stages:

1. Initial Interview – to discuss your background, motivation, and overall fit with ACK3.

2. Technical Interview – including an accounting case to assess your practical knowledge and analytical approach.

All interviews may be conducted in English and/or Spanish.

Take the initiative towards a distinguished career in risk and intelligence consultancy

Apply now to join our mission at ACK3 and make a tangible impact in the realm of global strategic intelligence and insights.

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