General Ledger Senior Accountant

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.

Join Moderna's U.S. Accounting organization from our Warsaw Enterprise Solutions Hub, where you'll play a pivotal role in delivering accurate, timely, and insightful financial reporting. As an individual contributor, you'll partner with global stakeholders to support Fixed Assets and General Ledger accounting while helping drive operational excellence, automation, and continuous improvement. This is an opportunity to work at the intersection of finance, technology, and innovation, with exposure to digital tools and emerging AI-enabled solutions that continue to transform accounting operations.

Here's What You'll Do:

Support General Ledger accounting activities, including prepaids, accruals, cash accounting, fixed asset capitalization, Construction in Progress (CIP), transfers, disposals, depreciation, account reconciliations, accounting analyses, and maintenance of fixed asset records in SAP.

Support month-end, quarter-end, and year-end close activities for Fixed Assets and General Ledger, including preparing and posting journal entries, reconciliations, supporting schedules, and close analyses.

Partner closely with the U.S. Accounting team and cross-functional stakeholders to deliver an accurate, complete, and timely financial close.

Review capital projects and fixed asset transactions to ensure compliance with U.S. GAAP and company accounting policies.

Maintain documentation supporting SOX internal controls, audit readiness, and compliance requirements.

Support internal and external audits by preparing documentation and responding to auditor requests.

Drive continuous improvements, automation, and standardization across General Ledger and Fixed Assets accounting processes.

Leverage digital technologies and emerging automation capabilities to improve the efficiency, scalability, and accuracy of accounting operations.

Collaborate with Accounting, Finance, Procurement, Engineering, Facilities, and other business partners to support capital investments and operational objectives.

Analyze accounting transactions, investigate variances, identify root causes, and recommend practical solutions to improve financial reporting and operational efficiency.

Work closely with both the U.S.-based Accounting team and the Poland-based Accounting Manager to support global accounting operations.

Participate in special projects, system implementations, compliance initiatives, audits, and evolving business priorities.

Contribute to a culture of operational excellence, innovation, continuous improvement, and high-quality financial reporting.

Here's What You'll Bring to the Table:

Bachelor's degree in Accounting, Finance, or a related discipline.

3-5 years of progressive accounting experience, including General Ledger and/or Fixed Assets accounting within a complex global environment.

Strong understanding of U.S. GAAP, journal entries, account reconciliations, fixed asset accounting, and financial close processes.

Experience supporting capital projects or manufacturing environments is advantageous.

Strong analytical and problem-solving skills with the ability to investigate issues and recommend practical improvements.

A curious mindset with a passion for challenging existing processes and driving continuous improvement.

The ability to thrive in ambiguity, manage multiple priorities, and consistently deliver high-quality outcomes in a fast-paced global organization.

Excellent collaboration skills across international Accounting, Finance, and business teams.

Full professional proficiency in English.

ERP experience, strong Excel skills, and SAP experience are highly valued.

Experience within the pharmaceutical, biotechnology, or healthcare industry is a plus.

The key Moderna Mindsets you'll need to succeed in the role:

" We question convention because proven models don’t always fuel the future.”

" We digitize everywhere possible using the power of code to maximize our impact on patients.”

Pay & Benefits

At Moderna, we believe that when you feel your best, you can do your best work. That’s why our benefits and well-being resources are designed to support you—at work, at home, and everywhere in between.

• •Competitive healthcare, plus voluntary benefit programs to support your unique needs
• •A holistic approach to well-being with access to fitness, mindfulness, and mental health support
• •Family building benefits, including fertility, adoption, and surrogacy support
• •Generous paid time off, including vacation, bank holidays, volunteer days, sabbatical, global recharge days, and a discretionary year-end shutdown
• •Savings and investments to help you plan for the future
• •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 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