Senior Payroll Specialist

The Role:

Moderna is seeking a highly skilled and motivated Senior Payroll Specialist to support a broad range of activities within the Payroll function. This role is responsible for managing all aspects of U.S. (multi-entity multi-state) and Canadian (multi-entity) payroll operations including coordination of related equity transactions.

The Senior Payroll Specialist will serve as a trusted payroll expert driving operational excellence compliance and continuous process improvement across all U.S. and Canadian payroll activities. The ideal candidate will have advanced proficiency in Workday Payroll with a proven track record of delivering accurate timely and compliant payroll results. Strong attention to detail integrity in handling sensitive data and commitment to process optimization compliance and data accuracy are essential to success in this role.

Heres What Youll Do:

• Process and oversee end-to-end payroll for U.S. (multi-entity multi-state) and Canadian (multi-entity multi-province) employees ensuring accuracy timeliness and compliance with all applicable laws and internal policies.

• Leverage ADP SmartCompliance expertise to manage wage and tax compliance and administration across the U.S. and Canada.

• Validate reconcile and audit payroll data from multiple systems (Workday and vendor outputs) to ensure data integrity before processing and funding.

• Partner with HR Benefits Accounting and Finance to align payroll processes support audits and ensure a seamless employee pay experience.

• Collaborate with Global Compensation and Global Mobility teams to support expatriate shadow payroll cross-border reporting and payroll-impacting events (transfers relocations and repatriation).

• Coordinate with HR Finance and Legal to fulfill documentation and compliance requests and assist with ad-hoc payroll-related reporting.

• Monitor the payroll inbox and resolve employee inquiries including timesheet validation in a timely and professional manner.

• Work closely with outsourced payroll providers and vendors to ensure service quality compliance and adherence to SLAs.

• Manage state and provincial agency correspondence and remain current on wage tax and reporting regulations to ensure ongoing compliance.

• Support quarter-end and year-end payroll activities including reconciliations adjustments and preparation of tax documents (e.g. W-2s T4s RL-1 ROE).

• Assist with quarterly and annual audits and maintain accurate payroll documentation in compliance with SOX and internal controls.

• Maintain and update payroll procedures and SOPs to ensure audit readiness and consistency with corporate policies.

• Collaborate with HRIS and IT to test and implement Workday payroll configuration changes integrations and system updates.

• Contribute to process improvement initiatives driving efficiency accuracy and scalability within payroll operations.

• Serve as a subject matter expert in payroll systems compliance and best practices to enhance governance and employee experience.

Heres What Youll Need (Basic Qualifications):

• Minimum of 5 years of hands-on payroll experience including U.S. (multi-entity multi-state) and Canadian (multi-entity multi-province) payrolls with demonstrated technical expertise and strong regulatory knowledge.

• Proficiency in Workday Payroll for end-to-end processing and ADP SmartCompliance for wage and tax compliance across the U.S. and Canada.

• Strong analytical organizational and problem-solving skills with a high level of attention to detail.

• Proficiency in Microsoft Excel and general payroll reporting and reconciliation tools.

• Effective communication and collaboration skills with experience working cross-functionally with HR Finance and external vendors.

• Proven ability to process and reconcile complex payrolls accurately and on time.

• Strong understanding of U.S. federal state and Canadian provincial payroll regulations tax compliance and reporting requirements.

• Demonstrated ability to manage sensitive employees and compensation data with the highest degree of integrity and confidentiality.

• Work authorization in the United States without the need for future sponsorship.

Heres What Youll Bring to the Table (Preferred Qualifications)

• Bachelors degree in Accounting or a related field.

• Certified Payroll Professional (CPP) or equivalent certification.

• 7 years of progressive payroll experience in a multi-entity multi-state U.S. payroll environment and has exposure to Canadian payroll or equity processing.

• Advanced experience with Workday reporting integrations and system testing.

• Proven track record of process improvement and automation initiatives within payroll operations.

• Experience supporting quarter-end year-end and audit activities including reconciliations and tax documentation.

• Strong knowledge of equity and bonus payroll processing and related taxation.

• Demonstrated ability to thrive in a fast-paced high-growth environment and adapt to evolving business needs.

Pay & Benefits

At Moderna we believe that when you feel your best you can do your best work. Thats why our US benefits and global well-being resources are designed to support youat work at home and everywhere in between.

• Best-in-class healthcare coverage 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 planning benefits including fertility adoption and surrogacy support

• Generous paid time off including vacation volunteer days sabbatical global recharge days and a discretionary year-end shutdown

• Savings and investment opportunities to help you plan for the future

• Location-specific perks and extras

The successful candidate may be eligible for an annual discretionary bonus other incentive compensation or equity award subject to company plan eligibility criteria and individual performance.

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.

If you want to make a difference and join a team that is changing the future of medicine we invite you to visit to learn more about our current opportunities.

Our Working Model

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.

Moderna is a smoke-free alcohol-free and drug-free work environment.

Equal Opportunities

Moderna is committed to equal employment opportunity 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 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 an E-Verify Employer in the United States. We consider qualified applicants regardless of criminal histories consistent with legal requirements.

Accommodations

Were 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 accommodations to qualified job applicants with disabilities. Any applicant requiring an accommodation 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 team at .

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