Senior Payroll Specialist

About Niron

Niron Magnetics is commercializing the first new magnetic material in decades powered by its breakthrough material formulation and advanced manufacturing process. The company’s proprietary magnet technology based on Iron Nitride enables magnets that are inherently high magnetization, free of rare earths and other critical materials, and solve supply chain reliability challenges, will drive innovation in various industries. Headquartered in Minneapolis, MN, Niron Magnetics is comprised of a team of professionals with a desire to make a positive impact on the global community. We were named one of “America's Top GreenTech Companies” for 2024 and 2025 by TIME Magazine and the “Innovation of the Year” at the 2025 mHUB Fourth Revolution Awards.

Our team is made up of people who think big, dare to innovate, and strive to impact the planet through technological innovation for our customers. Ready to work alongside amazing people, solve complex problems, and leave a legacy? Join our team.

About the Role

We’re looking for a Senior Payroll Specialist who is energized by details, enjoys solving problems, and takes pride in accuracy. This person will play a key role in building and supporting our first fully in-house payroll function. It’s an opportunity to help shape the foundation of a scalable payroll operation during a period of exciting company growth. If you enjoy a blend of reliable processes, meaningful problem-solving, and teamwork in a fast-paced environment, this role may be exactly what you’ve been looking for.

What you’ll do:

Payroll Processing

·       Process payroll for exempt, non-exempt, and shift-based employees with a high degree of accuracy and attention to detail.

·       Perform employee-level validation of timecards, earnings, deductions, and taxes before finalizing payroll.

·       Ensure all payroll components (including off-cycle and bonus payrolls) are complete and correctly configured.

·       Use payroll checklists and controls to ensure consistent, complete, and repeatable processes.

·       Identify and resolve discrepancies before payroll is processed.

Payroll Compliance & Tax

·       Apply federal, state, and local payroll requirements accurately and consistently (FLSA, ESST, MN PFML, multi-state taxation).

·       Maintain and manage multi-state tax registrations, accounts, and rate updates.

·       Partner with Finance to review payroll tax filings and resolve notices or variances quickly and accurately.

·       Identify compliance risks and take proactive action to resolve and prevent issues.

·       Maintain audit-ready documentation and support internal and external audits.

Benefits Administration & Leave Coordination

·       Administer employee benefits (medical, dental, vision, HSA/FSA, voluntary) ensuring accurate enrollments, changes, and system alignment.

·       Provide clear, timely support to employees for benefits questions and life events.

·       Reconcile benefits data across systems and carriers, ensuring accuracy with payroll deductions.

·       Coordinate leaves of absence (FMLA, state programs like MN PFML, disability) in partnership with external vendors.

·       Track leave status and return-to-work timing, ensuring accurate payroll, benefits, and compliance handling.

·       Ensure leave-related pay, deductions, and benefits are applied correctly and consistently.

·       Support open enrollment, including system updates, employee communications, and data validation.

·       Assist with benefits audits and reporting, maintaining accurate, audit-ready records.

·       Identify and resolve discrepancies, ensuring a smooth and accurate employee experience.

Payroll Reporting & Coordination

·       Deliver payroll reports that are accurate, complete, and aligned with stakeholder needs.