Senior
Moderna · Warsaw, Poland · Hybrid
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Own end to end direct tax compliance, withholding, US GAAP tax reporting and tax accounting for 20+ jurisdictions.
Worth knowing: 70% in office expectation (70/30 work model)
If you’re interested in this role, please apply in English and include an English version of your Resume/CV. The Role: Joining Moderna means advancing mRNA science to transform medicine. Work with exceptional global teams on a broad pipeline and build a career that makes a real difference for patients. Moderna is strengthening its international business services hub in Warsaw, supporting our growing global operations. We welcome professionals ready to help advance our mission and shape the future of mRNA medicines. As Moderna continues to scale globally, this role sits at the heart of our Moderna Enterprise Solutions Hub (MESH) in Warsaw, supporting direct tax operations across 20+ countries. You will operate as a key individual contributor, owning end-to-end tax compliance, reporting, and accounting activities while partnering across a highly matrixed global organization. This is a highly technical, detail-oriented position with a strong emphasis on leveraging technology and AI to drive efficiency, scalability, and smarter decision-making in tax operations. Here's What You'll Do: Act as a key point of contact for assigned jurisdictions, coordinating closely with internal teams including GL, AP, Legal, Controllership, and Finance, as well as external tax advisors across a global portfolio of 20+ countries. Support corporate tax compliance activities, covering both income and non-income-based taxes, ensuring timely and accurate submission of direct tax returns in collaboration with external advisors. Manage withholding tax compliance by analyzing obligations, ensuring proper documentation, and coordinating with internal stakeholders and external partners. Prepare US GAAP tax reporting, including tax provisions, return-to-provision adjustments, tax account reconciliations, and supporting tax balance sheet reviews. Prepare and review tax-related journal entries with a strong command of debits and credits, ensuring accurate recording of tax activity within the general ledger. Oversee tax payments, including monitoring prepayments, reconciling tax accounts, and coordinating payment execution with finance teams. Partner with accounting teams to support statutory financial statements, tax accounting matters, and close processes across multiple jurisdictions globally.
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