Sr. SAP Tax & Vertex Engineer

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 a senior technical expert within Moderna’s enterprise technology organization, you will play a critical role in shaping and supporting the global tax technology landscape across SAP S/4HANA. This position combines deep SAP tax expertise with advanced Vertex capabilities to deliver scalable, compliant, and efficient tax solutions that support Moderna’s rapidly expanding global operations.

Working across global business functions, you will serve as the trusted authority for tax determination, compliance, reporting, and integration, ensuring tax processes are seamlessly embedded across finance and supply chain operations. You will partner closely with Tax, Finance, Digital, and business stakeholders to translate evolving regulatory requirements into robust system solutions while driving innovation through automation, AI-enabled capabilities, and modern digital technologies.

Here's What You'll Do:

• Serve as the SAP and Vertex Subject Matter Expert (SME) for global tax processes across Moderna’s enterprise landscape.

• Design, configure, support, and optimize SAP tax procedures, condition techniques, tax codes, and tax determination logic within SAP S/4HANA.

• Design, implement, and maintain Vertex O-Series integrations, ensuring accurate tax calculation, jurisdiction determination, and reporting consistency.

• Support global indirect tax requirements including:

  • US Sales & Use Tax

  • European Union VAT

  • APAC GST

  • Regional tax compliance models and statutory requirements

• Support direct tax and withholding tax processes, including integration with finance processes and reporting structures.

• Ensure seamless tax integration across key business processes including:

  • Order-to-Cash (O2C)

  • Procure-to-Pay (P2P)

  • Source-to-Pay (STP)

  • Record-to-Report (RTR)

  • Billing

  • Procurement

  • Intercompany transactions

  • General Ledger postings

• Support and enhance SAP Document & Reporting Compliance (DRC) solutions and Continuous Transaction Controls (CTC) capabilities.

• Collaborate with global tax teams to interpret regulatory requirements and translate them into scalable system configurations and technical solutions.

• Support and maintain tax-relevant master data, including customer, vendor, material, and tax classification data structures.

• Drive accurate tax reporting and reconciliation leveraging SAP DRC, Vertex solutions, and business intelligence platforms.

• Lead and support testing activities across UNIT, SIT, and UAT cycles, ensuring successful deployments and ongoing production support.

• Drive process automation and operational efficiency through OCR, RPA, advanced analytics, and emerging Generative AI and AI-enabled capabilities.

• Ensure strong governance through SOX compliance, audit readiness, controls management, and comprehensive process documentation.

• Act as a hands-on technical expert, troubleshooting complex tax configuration, integration, and compliance challenges across global regions.

• Support a global tax technology footprint spanning the United States, Europe, and APAC, enabling scalable growth and regulatory compliance across Moderna’s international operations.

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

• We obsess over learning. We don’t have to be the smartest, we have to learn the fastest.

• 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 Finance, IT, or related field

• 7+ years SAP experience with strong focus on tax

• Hands-on experience with SAP S/4HANA tax configuration and FI module

• Strong experience with Vertex O-Series tax engine and Vertex certificate center

• Deep understanding of indirect tax (Sales & Use Tax, VAT, GST)

• Experience supporting withholding tax and direct tax integration

Here’s What You’ll Bring to the Table (Preferred Qualifications)

• Experience with SAP DRC (Document & Reporting Compliance)

• Global e-invoicing and statutory reporting experience

• Experience across multiple regions (US, EU, APAC tax models)

• Experience with SAP BTP and integrations

• Experience in life sciences or regulated industries

• Strong analytical and problem-solving skills

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 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 [email protected]. 

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