Senior Benefits Coordinator- US

Nscale•Seattle, WA

8d•$80,000 - $110,000•Hybrid

About The Position

Nscale is seeking a Senior Benefits Coordinator - US to support the scaling and operationalization of its US benefits programs during a period of significant growth. This role, reporting to the Senior Benefits Manager, is responsible for the daily administration of Nscale's US benefits offering throughout the employee lifecycle. The position requires close collaboration with Payroll, HR Operations, Finance, vendors, and external providers to ensure smooth, accurate, and compliant program execution. This is a key role for an individual who excels at developing scalable processes, resolving operational challenges, and bringing structure to complex situations. The work will directly influence the employee benefits experience for a growing US workforce and contribute to building the operational foundation for Nscale's continued expansion.

Requirements

Proven experience administering US employee benefits programs
Experience in a high-growth technology, scale-up, or fast-paced business environment
Experience supporting multi-state US employee populations
Experience working with external brokers, carriers, and leave administrators
Experience supporting benefits transitions, implementations, or operational process improvements
Strong systems and data mindset with experience using HRIS and benefits platforms such as ADP, Workday, UKG, or similar
Advanced Excel or Google Sheets skills, including reconciliation and reporting
Solid knowledge of US benefits regulations including ACA, COBRA, ERISA, HIPAA, FMLA, PFML, and Section 125
Excellent written and verbal communication skills with the ability to simplify complex topics clearly and confidently
Strong stakeholder management skills and the ability to build trusted relationships across employees, Payroll, Finance, HR Operations, and external vendors

Responsibilities

Own the day-to-day administration of all US benefits programs.
Manage employee enrollments, qualifying life events, terminations, and annual open enrollment with a high level of accuracy.
Maintain accurate employee benefits records across HRIS, payroll, and benefits systems.
Partner with Payroll, HR Operations, and external vendors to ensure timely deductions, eligibility updates, and data reconciliation.
Support process improvements that enhance efficiency, scalability, and employee experience.
Partner with the Senior Benefits Manager to support the establishment of an independent benefits structure.
Coordinate carrier implementations, systems integration, and operational workflow design.
Build scalable processes and documentation to support a growing US employee population.
Identify opportunities to automate workflows and reduce manual administration.
Act as the primary point of contact for US employee inquiries regarding benefits.
Translate complex benefits information into clear, actionable guidance for employees and managers.
Resolve claims, billing, and eligibility issues in partnership with carriers and third-party providers.
Support employee education and communication initiatives related to benefits programs and enrollment activities.
Coordinate US leave programs with external leave administrators while maintaining compliance with federal and state regulations.
Support employees and managers through leave processes including FMLA, parental leave, disability leave, and state-specific leave programs.
Complete leave-related documentation and system updates accurately and efficiently.
Coordinate the day-to-day administration of Nscale’s 401(k) plan.
Manage enrollments, beneficiary maintenance, payroll contributions, and vendor coordination.
Ensure accurate data flow between benefits platforms, payroll, and providers.
Assist with employee communications and education relating to retirement benefits.
Support required quarterly, annual, and year-end documentation, reporting, filings, and operational processes.
Maintain compliance-related records and employee-facing documentation so they remain accurate and audit-ready.
Preserve strong data integrity across HRIS and benefits platforms.
Support reporting, audits, and reconciliation activities tied to benefits administration and vendor management.