Specialist Accounts Receivables (f/m/d)

At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us. We are seeking a detail-oriented and analytical Accounts Receivable Specialist to join our finance team in Berlin. Operating within a fast-paced, multinational environment, this role is responsible for managing billing, payment reconciliations, and financial reporting across multiple international entities. The ideal candidate will have hands-on experience with NetSuite ERP and the ability to seamlessly collaborate with global teams in English. Tasks Billing & Invoicing Management: Issue, review, and manage customer invoices and credit notes across various ERP systems, ensuring strict compliance with internal company policies and international regulations. Collections & Dunning Execution: Generate, execute, and analyze collection runs, payment batches ( remesados de cobro ), and dunning processes to accelerate cash flow and minimize overdue balances. Payment Reconciliation & Provider Relations: Accurately reconcile incoming payments against open AR balances, resolve transaction discrepancies, and maintain direct communication with payment service providers. Cross-Border & Multi-Currency Operations: Manage accounting workflows for multiple international subsidiaries, seamlessly navigating multi-currency and multi-jurisdictional financial environments. Financial Reporting & Period-End Closing: Actively participate in month-end and year-end closing cycles by generating, analyzing, and presenting AR reports, evaluations, and aging schedules to support management decisions. Accounting Projects & Support: Support and contribute to specialized cross-functional projects aimed at optimizing and evolving the overall accounting environment. Qualifications Background & Experience: A commercial education or professional experience in accounting, preferably gained within a multinational corporation (MNC) or a Shared Services environment handling multi-country portfolios. Core Accounting & Payment Expertise: A solid understanding of basic accounting principles, international billing practices, and credit management, combined with practical experience handling diverse payment methods (e.g., SEPA, Credit Cards, PayPal, Apple Pay). ERP & Analytical Tools: Hands-on proficiency with Tier-1 ERP systems—NetSuite experience is highly desirable, while SAP or InforLN is a plus—alongside strong MS Excel skills (VLOOKUPs, Pivot Tables) for data analysis and reporting. Work Style & Tech Curiosity: Strong analytical skills, high numerical affinity, and the ability to work independently and structured within a dynamic setting. A proactive interest in AI and automation tools (e.g., Claude, n8n) is a strong plus. Language Skills: Professional fluency in English (written and spoken) is mandatory as the primary working language; knowledge of any additional European language is a distinct advantage. Benefits: Hybrid working model with home office option. Flexible working hours through trust-based working hours. At some locations a subsidized canteen and various free drinks. Modern office space with very good transport connections. Various employee discounts for activities and products. Employee events such as summer and winter parties, as well as workshops. Numerous training and development opportunities. Various health offers, such as sports and health courses. About IONOS IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a 'one-stop shop' for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve. We value diversity and welcome all applications - regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.