Freelance Senior Accountant (Interim – International Scope)

Freelance Senior Accountant (Interim – International Scope) We are currently looking for an experienced and hands-on Interim Freelance Senior Accountant to temporarily join our finance team and provide interim coverage for a colleague who is on long-term leave. In this role, you will take full ownership of the entire spectrum of accounting activities and play a key role in the periodic and yearly financial closing process. This is an excellent opportunity for someone who enjoys working in an international and dynamic environment. What you will do Take full ownership of day-to-day accounting (A to Z), including purchase and sales invoicing, bank reconciliations, and journal entries. Manage payroll accounting, amortizations, depreciations, accruals and other transactional entries. Lead periodic and yearly closing processes, ensuring completeness and timeliness. Maintain compliance with local VAT regulations and stay updated on legislative changes. Coordinate with external partners for VAT and CIT filings, annual accounts, and consolidation tasks. Support statutory audit processes and ensure documentation is complete and audit-ready. Provide guidance to team members to safeguard transactional accuracy. Work closely with the Controlling team on financial reporting and analytical tasks. Manage and execute accounting activities for multiple entities within an international scope. Offer expertise and support on complex accounting matters. Who you are A hands-on accounting professional with a comprehensive understanding of financial operations from A to Z. Detail-oriented and highly accurate, with a proactive mindset and strong sense of responsibility. Comfortable in a fast-paced, international environment where multiple entities and deadlines coexist. A collaborative team player with strong communication skills, dedicated to supporting colleagues and external partners. Knowledgeable in local tax laws, statutory reporting requirements, and international financial standards (IFRS). Technically capable, especially when working with ERP systems (NetSuite experience is a plus). Adaptable, solution-focused, and motivated to drive efficiency and reliability in every aspect of accounting. Fluent in English; good knowledge of Dutch and German are a plus. What we offer: A challenging interim assignment in a dynamic and international company Flexible working culture Opportunity to make an immediate impact during a critical period Collaboration with experienced professionals and external partners Competitive freelance daily rate Department Finance Locations Randstad NL Remote status Hybrid About Tree Energy Solutions Most of the world runs on fossil fuels and it is destroying our climate. We are committed to driving the energy transition on a global scale. TES is overhauling our energy system by making the most of existing technology and infrastructure. We use the sun’s energy and recycled CO₂ to produce green molecules that will make decarbonizing our energy system fast, affordable, and feasible while scaling up the hydrogen economy.