Tax & Accounts Supervisor

Whitewater Group is a leading provider of innovative and sustainable water treatment engineering systems operating in Ireland, the UK and across Europe in the Data Centre, Pharma, Power and Industrial sectors. We specialize in designing, installing, commissioning, and maintaining water treatment solutions to meet our clients' specific needs. Our team is dedicated to delivering high-quality, cost-effective engineering solutions that prioritize safety, reliability, and environmental sustainability.
Whitewater Group is headquartered in Naas Co. The Group is experiencing significant growth driven by its focus on off-site construction methods (OSM) for delivering turnkey projects, reducing on-site construction time to a minimum.

As Whitewater Group continues to expand internationally across multiple markets, we are seeking an Accountant based in Madrid to support the delivery of accurate, timely, and compliant financial operations across the business.
This role will play a key part in managing day-to-day accounting activities, including accounts payable and receivable, general ledger maintenance, reconciliations, tax compliance, and month-end close processes. Working closely with the Finance Manager and wider finance team, the successful candidate will ensure the integrity of financial records, support cash flow management, and contribute to the preparation of financial reports and statutory submissions.
The ideal candidate will be a proactive, detail-oriented finance professional with strong analytical skills, a solid understanding of accounting principles and tax requirements, and the ability to work effectively across multiple stakeholders and business functions to ensure the highest standards of financial accuracy, compliance, and operational efficiency.

Receive, review, validate, and accurately process supplier invoices in accordance with company policies and accounting procedures.
Prepare and issue customer invoices, ensuring accuracy and compliance with contractual and billing requirements.
Prepare and post journal entries, including accruals, provisions, payroll-related entries, and other month-end adjustments.
Perform bank reconciliations and reconcile general ledger accounts to ensure completeness and accuracy of financial data.
Prepare tax calculations, returns, and statutory filings, ensuring compliance with relevant tax regulations.
Manage Work-in-Progress (WIP) and Deferred Revenue accounting in line with company policies and applicable accounting standards.
Support treasury activities, including cash management, payment processing, and cash flow forecasting.
Prepare financial reports, analyses, and management information to support decision-making and business performance monitoring.
Assist with internal and external audits by preparing documentation, responding to audit queries, and supporting audit requirements.
Identify opportunities for process improvements and contribute to the enhancement of financial controls, systems, and accounting procedures.

3–5 years of experience in an accounting or finance role.
~ Bachelor's degree in Business Administration, Finance, Accounting, or a related field.
~ Strong knowledge of Spanish GAAP (PGC –  Plan General de Contabilidad ).
~ Good understanding of taxation and tax compliance requirements.
~

Experience with Sage ERP would be considered an advantage.
~ Advanced proficiency in Microsoft Excel.
~ High level of English, both written and spoken.
~ Exposure to a diverse portfolio of complex and high-impact international engineering projects.
Access to ongoing internal training and professional development programs.
Opportunity to work within multicultural teams across global projects and environments.
Involvement in technically challenging projects that encourage continuous learning and growth.