Senior Payroll Specialist, International

Company Overview Rhythm is a global, commercial-stage biopharmaceutical company committed to transforming the lives of patients living with rare neuroendocrine diseases. We develop medicines for previously untreatable or undertreated diseases. We recognize the courage it takes for patients and their caregivers to begin their journey of advocacy to find the answers they need. Their courage inspires us to challenge convention, ask bold questions and seek answers for them. Every day, we strive for excellence through our willingness to adapt, learn, and our tenacity to overcome barriers, together.

Overview As a Senior Payroll Specialist, International, you will oversee accurate and compliant payroll delivery across Rhythm’s international markets, with a focus on the international portfolio. This role owns end-to-end payroll processing, vendor coordination, payroll reconciliation, compliance support, employee inquiries, and continuous process improvement in partnership with HR, Finance, and payroll leadership. Responsibilities and Duties Manage accurate and timely monthly payroll and operations for assigned countries across the international portfolio. Prepare, validate, and reconcile payroll inputs, including new hires, employee changes, compensation, benefits, and terminations. Ensure strict payroll compliance with local labor laws, tax and withholding, social security, statutory reporting, internal controls, and data privacy regulations. Partner with in-country payroll providers, local authorities, HR, and Finance to resolve payroll and compliance matters. Support account reconciliations, audits, documentation, employee inquiries, and payroll reporting. Identify opportunities to streamline and improve payroll processes, controls, automation, and operational efficiency. Assist in the testing and implementation of payroll system enhancements, year-end statutory reporting, and entity setups in new international markets. Perform other ad hoc projects and related tasks as necessary to support global business growth. Qualifications and Skills Bachelor’s degree in Accounting, Finance, Business Administration, or related field, or equivalent combination of education and experience. Minimum of 4 years of progressive payroll experience, with demonstrable multi-country international payroll experience with an EU focus strongly preferred. Proven experience collaborating with third party in-country payroll vendors and cross-functional partners. Strong attention to detail, analytical skills, discretion, and ability to meet recurring payroll deadlines. Sound judgment when handling complex or ambiguous payroll and compliance issues. Strong understanding of European payroll compliance, statutory filings, social taxes, and GDPR requirements. Exposure to cross-border compensation, equity transactions/withholding, or mobile employee payroll. Experience with payroll systems, HRIS platforms, reporting tools, and Microsoft Excel. This role is based out of our corporate office in the Netherlands. Rhythm operates in a hybrid-work model. Candidates applying must be willing and able to be in the Netherlands office in coordination with their department and business needs. More About Rhythm We are a dynamic and growing global team spanning more than a dozen countries. At Rhythm we are dedicated to transforming the lives of patients living with rare melanocortin-4 receptor (MC4R) pathway diseases by rapidly advancing care and precision medicines that address the root cause. Our team is passionate about expanding access to reach more patients and developing novel therapies for other rare neuroendocrine diseases, including congenital hyperinsulinism. At Rhythm Our Core Values Are We are committed to advancing scientific understanding to improve patients’ lives We are inspired to tackle tough challenges and have the courage to ask bold questions We are eager to learn and adapt We believe collaboration and ownership are