Payroll Administrator

Pour la version française de cette description de poste, veuillez consulter le lien suivant:

• Administrateur(trice) de la paie et des avantages sociaux – États-Unis

You are a meticulous and proactive payroll and benefits professional who takes full ownership of the employee experience behind the scenes. You thrive in fast-paced, multi-entity environments where no two days look the same, and you bring a rare combination of technical precision and people-first thinking to everything you do. You don't just process payroll — you ensure every employee is paid accurately, on time, and with complete confidence.

You're equally at home navigating complex benefits renewals, multi-state compliance requirements, and leave of absence case management. You hold yourself to the highest standard of accuracy, confidentiality, and integrity — because you know that getting the details right is what earns trust. If you're someone who sees what needs to be done, takes initiative, and drives it all the way to completion, this role was built for you.

• Process and manage end-to-end payroll for multiple US-based entities, including regular, off-cycle, and ad hoc payroll runs;
• Ensure accurate calculation of wages, deductions, garnishments, tax with holdings, and all payroll-related transactions;
• Manage multi-state payroll tax registrations, closures, filings, and compliance — including SUI and SIT accounts;
• Lead year-end payroll activities including W-2 preparation, reconciliation, and distribution;
• Serve as the primary liaison with payroll vendors and resolve processing issues in a timely manner;
• Audit and maintain payroll records to ensure data integrity across all entities.

• Administer all US employee benefit programs including medical, dental, vision, life, disability, FSA/HSA, and 401(k) plans across multiple companies;
• Manage the full benefits lifecycle: enrollment, changes, terminations, COBRA, QMCSO, and qualifying life events;
• Lead annual open enrollment planning, communication, execution, and post-enrollment reconciliation for all supported entities;
• Partner with brokers, carriers, and third-party administrators on plan setup, renewals, billing reconciliation, and issue resolution; negotiate contracts and renewals on behalf of the organization;
• Support 401(k) plan administration including audit coordination, compliance testing (ADP/ACP, top-heavy), and Form 5500 filings.

• Administer and track employee leaves of absence in compliance with FMLA, ADA, state-specific leave laws, and company policies;
• Serve as the primary point of contact for employees, managers, and vendors on leave eligibility, documentation requirements, timelines, and status updates;
• Coordinate leave-related pay, benefits continuation, and return-to-work processes;
• Partner with managers and HR Business Partners to ensure a smooth, supportive experience throughout the leave lifecycle;
• Maintain accurate, confidential leave records and reporting in HRIS and case management systems.

• Stay current on federal, state, and local payroll and benefits regulations (FLSA, ERISA, ACA, COBRA, HIPAA);
• Ensure timely and accurate compliance filings including ACA reporting (1094-C/1095-C), EEO-1, and state-specific requirements;
• Generate and analyze payroll and benefits reports to support audits, budgeting, and leadership decision-making;
• Support due diligence and integration activities related to newly acquired entities.

• Identify opportunities to streamline payroll and benefits processes, increase automation, and enhance the employee experience;
• Partne…