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The Role

Joining Moderna offers the unique opportunity to be part of a pioneering team that is revolutionizing medicine through mRNA technology, with a diverse pipeline of development programs across various diseases.

As an employee, you’ll be part of a continually growing organization, working alongside exceptional colleagues and strategic partners worldwide, contributing to global health initiatives.

Moderna’s commitment to advancing the technological frontier of mRNA medicines ensures a challenging and rewarding career experience, with the potential to make a significant impact on patients’ lives worldwide.

Moderna is solidifying its presence within its international business services hub in Warsaw, Poland, a city renowned for its rich scientific and technological heritage. This hub provides critical functions, meeting the growing demand of Moderna’s global business operations. We’re inviting professionals from around the world to join our mission and contribute to the future of mRNA medicines.

As a Senior Accountant within the General Ledger (GL) team, you will play a vital part in Moderna’s international accounting operations, ensuring timely, accurate close submissions and supporting compliance with US GAAP and local statutory requirements. Reporting to the General Accounting Manager, your work will have a direct impact on the delivery of high-quality financial reporting and enable broader organizational growth. This is a highly visible, hands‑on role where your contributions will support legal entities across our global footprint. You’ll bring a sharp eye for process improvements, a readiness to challenge convention, and the ability to thrive in a fast‑paced, rapidly scaling environment. This role also provides a unique opportunity to collaborate across multiple geographies and functions while helping shape the backbone of Moderna’s financial infrastructure. The successful candidate will exemplify integrity, operational excellence, and a passion for continuous learning. This position also offers exposure to cutting‑edge digital tools and systems — including opportunities to engage with Generative AI‑based process enhancements — making it an exciting space for professionals passionate about the future of finance.

• Executing accurate and timely monthly and quarterly close activities for assigned international legal entities
• Preparing key journal entries including payroll, accruals, and prepaids with a high degree of precision
• Managing Fixed Asset accounting and ensuring completeness of asset records
• Performing balance sheet account reconciliations and in‑depth variance analysis
• Maintaining and reconciling US GAAP and local statutory records, including identification of local adjustments
• Contributing to the continuous improvement of financial close processes to support SEC filing timelines
• Supporting external financial audits and SOX 404 control testing with robust documentation
• Ensuring all close‑related internal controls are performed, evidenced, and meet compliance standards

• Partnering closely with US Accounting, Country Finance Leads, and FP&A teams to ensure accurate recording of transactions and accruals
• Providing strong support to the preparation of statutory financial statements across international legal entities
• Assisting in the implementation and optimization of accounting systems and digital tools
• Offering subject‑matter expertise in process and policy discussions, influencing improvements and automation initiatives
• Contributing to the enhancement of accounting‑related systems with a focus on scalability and efficiency

• “We obsess over learning. We don’t have to be the smartest we have to learn the fastest.” In this role, you will operate in a dynamic and fast‑evolving environment, constantly engaging with new systems, tools, and financial frameworks. A learning‑driven mindset will be essential to stay ahead of change and add immediate value.
• “We digitize everywhere possible using the power of code to maximize our impact on patients.” As we embrace advanced technologies and digital finance tools — including Generative AI — your ability to think digitally and advocate for automation will be key in scaling our financial operations for future growth.

• 4+ years of accounting experience within the shared service/biotechnology/pharmaceutical industry (required)
• Experience in Fixed Asset accounting (nice to have)
• Working knowledge of US GAAP, IFRS, internal controls (SOX) (required)
• Knowledge of life science, as well as commercial and manufacturing accounting transactions
• Experience with financial systems including SAP, Blackline and Microsoft Suite of products
• Strong work ethic, self‑motivated, willing to “Roll‑up your sleeves” to drive and deliver results, meet deadlines and improve processes
• Strong analytical skills and attention to detail
• Strong organizational, interpersonal, verbal and written communication skills
• Ability to work collaboratively across functional teams
• A desire to be part of a high‑growth, transformational company that is Bold, Relentless, Curious, and Collaborative.

• Quality healthcare and insurance benefits
• Lifestyle Spending Accounts to create your own pathway to well‑being
• Free premium access to fitness, nutrition, and mindfulness classes
• Family planning and adoption benefits
• Generous paid time off, including vacation, bank holidays, volunteer days, sabbatical, global recharge days, and a discretionary year‑end shutdown
• Savings and investments
• Location‑specific 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. Moderna champions the significant 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. If you meet the Basic 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 persons 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.