Senior Associate, Direct Tax

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.

###requirements### for government audits, financial audits, and tax notices. Drive process improvements, standardization, and automation initiatives across tax operations to enhance controls, efficiency, and scalability. Leverage technology and AI-driven tools to streamline recurring processes, improve data integrity, enhance reporting capabilities, and enable more informed decision-making.

Actively contribute to ad hoc tax projects, demonstrating the ability to explore multiple options in parallel and deliver optimal outcomes. Collaborate cross-functionally with Tax, Accounting, Finance, Controllership, Legal, and broader business stakeholders to ensure alignment and operational excellence. Partner with internal stakeholders to understand business processes, identify risks, and design more efficient, technology-enabled ways of working.

###responsibilities### as needed, demonstrating flexibility, accountability, and a proactive approach in support of Moderna’s mission. The key Moderna Mindsets you’ll need to succeed in the role: We pursue options in parallel to make the best choice later. We digitize everywhere possible using the power of code to maximize our impact on patients.

Here’s What You’ll Need (Basic Qualifications) Bachelor's degree in Accounting, Tax, Finance, or related discipline required.

###experience### in direct taxes required; public accounting and/or shared service center

###experience### is a plus. Strong tax technical skills, including expertise in Corporate Income Tax and other direct taxes. Strong foundation in tax accounting and general accounting principles, including

###experience### with journal entries, debits and credits, and account reconciliations. Proficiency in English (verbal and/or written) required due to global collaboration needs. Here’s What You’ll Bring to the Table (Preferred Qualifications)

###Experience### with financial systems including SAP, BlackLine, and Microsoft Office products.

###Experience### using technology, automation, and AI-enabled tools to improve tax processes and reduce manual work. Strong work ethic, self-motivated, and willing to roll up your sleeves to drive results, meet deadlines, and improve processes. Strong analytical

###skills### and high attention to detail. Strong organizational, interpersonal, verbal, and written communication skills. Ability to work collaboratively across functional teams in a global environment. Demonstrated

###experience### with process improvement, standardization, and operational efficiency. Commitment to continuous learning and personal development, with the ability to adapt in a fast-paced, dynamic environment. Excellent English skills, both written and verbal.

Additional language is a plus. A desire to make an impact as part of a high-growth, transformational company that is Bold, Relentless, Curious, and Collaborative.

###Benefits### At Moderna, we believe that when you feel your best, you can do your best work. That’s why our global

###benefits### and well-being resources are designed to support you—at work, at home, and everywhere in between.

###perks### and extras The

###benefits### offered may vary depending on the nature of your employment with Moderna and the country where you work. About Moderna Since our founding in 2010, we have aspired to build the leading mRNA technology platform, the infrastructure to reimagine how medicines are created and delivered, and a world-class team. We believe in giving our people a platform to change medicine and an opportunity to change the world.

By living our mission, values, and mindsets every day, our people are the driving force behind our scientific progress and our culture. Together, we are creating a culture of belonging and building an organization that cares deeply for our patients, our employees, the environment, and our communities. We are proud to have been recognized as a Science Magazine Top Biopharma Employer, a Fast Company Best Workplace for Innovators, and a Great Place to Work in the U.

S. As we build our company, we have always believed an in-person culture is critical to our success.

###benefits### of in-office collaboration by embracing a 70/30 work model. This 70% in-office structure helps to foster a culture rich in innovation, teamwork, and direct mentorship. Join us in shaping a world where every interaction is an opportunity to learn, contribute, and make a meaningful impact.

If you want to make a difference and join a team that is changing the future of medicine, we invite you to visit modernatx. com/careers to learn more about our current opportunities. Moderna is a smoke-free, alcohol-free, and drug-free work environment.

Moderna is a place where everyone can grow.

###Qualifications### for

###the role### and you would be excited to contribute to our mission every day, please apply! Moderna is committed to

###equal opportunity### in employment and non-discrimination for all employees and qualified applicants without regard to a person's race, color, sex, gender identity or expression, age, religion, national origin, ancestry or citizenship, ethnicity, disability, military or protected veteran status, genetic information, sexual orientation, marital or familial status, or any other personal characteristic protected under applicable law.

We consider qualified applicants regardless of criminal histories, consistent with legal requirements. We’re focused on attracting, retaining, developing, and advancing our employees. By cultivating a workplace that values diverse experiences, backgrounds, and ideas, we create an environment where every employee can contribute their best.

Moderna is committed to offering reasonable accommodation or adjustments to qualified job applicants with disabilities. Any applicant requiring an accommodation or adjustment in connection with the hiring process and/or to perform the essential functions of the position for which the applicant has applied should contact the Accommodations and Adjustments team at leavesandaccommodations@modernatx.

com. - Our Mission and Vision At Moderna we are pioneering the development of a new class of drugs made of messenger RNA (mRNA). This novel drug platform builds on the discovery that modified mRNA can direct the body’s cellular machinery to produce nearly any protein of interest, from native proteins to antibodies and other entirely novel protein constructs that can have therapeutic activity inside and outside of cells.

We have a clear mission to propel the field of mRNA science forward and deliver new medicines to patients and a unique vision for how to achieve this mission. Our Mission: To deliver on the promise of transformative messenger RNA (mRNA) science to bring new medicines to patients. Our Vision: To unlock the potential of mRNA by establishing an ecosystem of teams and partners that will work together to develop the broadest possible array of drugs, across diverse therapeutic areas and routes of administration, for serious diseases that are not treatable today.

Third Party Staffing Agencies Moderna does not accept unsolicited resumes from any source other than directly from candidates. For the protection of all parties involved in the recruiting process, resumes will only be accepted from recruiters/agencies if a signed agreement is in place at the inception of the recruiting effort and authorized for a specified position. Unsolicited resumes sent to Moderna from recruiters/agencies do not constitute any type of relationship between the recruiter/agency and Moderna and do not obligate Moderna to pay fees if we hire from those resumes.

Reasonable Accommodation Notice Moderna will make reasonable accommodations for qualified individuals with known disabilities, in accordance with applicable law. Applicants with disabilities may be entitled to reasonable accommodation under the terms of the Americans with Disabilities Act and certain state or local laws. Please inform the company's personnel representative by calling 617-460-9346 or emailing humanresources@modernatx.

com if you need assistance completing any forms or to otherwise participate in the application process. Examples of reasonable accommodation include making a change to the application process or work procedures, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.