Sr. HR Operations Specialist - US & Canada

The Role:

As the Sr. HR Operations Specialist, you’ll deliver timely, high-quality support to employees across the US and Canada, drive seamless day-to-day HR processes, maintain compliance with local policies and employment regulations, and foster a consistently positive employee experience. It calls for someone detail-oriented, well-versed in North American HR practices, and confident working independently while partnering effectively across HR, Payroll, Benefits, Compliance, Legal, and the broader business.

We work collaboratively as a team, we are relentless in the pursuit of excellence, we are curious and will boldly challenge the status quo if we can provide a better way, and we aim to strike a balance between process efficiency, effectiveness, and controls and compliance. We are committed to delivering accurate, timely, and insightful information with a high level of customer service, while striving to continuously improve our processes to help scale our operations to support future growth.

Here’s What You’ll Do:

• Serve as Tier 1 support for U.S.-based employees, responding to inquiries related to HR policies, processes, and Workday transactions.

• Process employee life cycle changes in Workday (e.g. hires, terminations, job changes) with a high degree of accuracy and timeliness.

• Support onboarding and offboarding processes, including documentation, system access, and compliance steps.

• Partner with U.S. HR Business Partners to support regional process execution and case escalations.

• Ensure accurate and complete employee records in compliance with U.S. regulatory and company requirements.

• Partner with the Global HR Compliance Lead and U.S. stakeholders to support audits, SOX reviews, and internal controls.

• Run regular data audits to ensure consistency, flag anomalies, and maintain integrity across Workday and other systems.

• Contribute to the creation, maintenance, and refinement of U.S. HR process documentation and employee-facing Knowledge Base content, spotting gaps, updating articles, and keeping guidance crystal-clear.

• Participate in HR digital projects to drive automation, self-service and ticket deflection.

• Occasionally needed to work flexible hours aligned with the US.

Here’s What You’ll Need (Basic Qualifications)

• BA/BS degree or equivalent experience in HR, Business Administration, or related field. (required)

• 3+ years of experience in HR operations, shared services, or employee services—preferably with U.S.-focused support.

• Hands-on experience with Workday (or similar HRIS) and a case management system such as ServiceNow.

• Understanding of U.S. employment practices, HR compliance, and documentation standards.

• Curiosity about how technology, automation, and AI can improve employee experience and streamline operations—you're eager to learn and experiment with new tools that support scalable HR service delivery.

• Excellent attention to detail and organizational skills.

• Strong written and verbal communication skills in English, including comfort interacting with stakeholders in North America. Proficiency in French is preferred.

• Ability to prioritize effectively and manage multiple requests in a fast-paced environment.

• A collaborative mindset, a bias for action, and a desire to continually improve and simplify.

• Proficiency in English (verbal and/or written) required due to global collaboration needs.

Pay & 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.

• Best-in-class 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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