Human Resources Manager

Winston Staffing; Inwood (NY); On-site; USD 90,000 - 120,000; Full time

Job summary

Winston Staffing is seeking an HR Manager for Payroll & Benefits in Western Nassau. You will own multi-state payroll for ~200 employees across two EINs, administer ADP Workforce Now, and manage Open Enrollment for medical, dental, vision, life, and 401(k) plans.

You will ensure compliance across NY and other states, oversee leaves (PFL/FMLA), and partner with Finance on general ledger entries. The ideal candidate has 5–8+ years of payroll/benefits experience in a mid-market private company, with

Qualifications

• 5–8+ years of hands-on payroll and benefits administration in a mid-market private company
• Direct proficiency in ADP Workforce Now (WFN) for reporting, benefits, and time & attendance
• Experience managing multiple EINs and running concurrent weekly and bi-weekly pay cycles
• Ownership of annual Open Enrollment and monthly carrier bill reconciliations
• Solid knowledge of NY State labor standards, PFL/FMLA, and multi-state payroll tax withholding
• Bachelor’s degree in HR, Business, Accounting, or equivalent; professional certification a plus

Responsibilities

• Manage multi-state payroll for ~200 employees across two EINs with weekly (hourly) and bi-weekly (exempt) runs
• Lead ADP Workforce Now administration and build custom reports
• Direct Open Enrollment lifecycle and administer medical, dental, vision, life, and 401(k) plans
• Audit carrier invoices against payroll registers to prevent leakage
• Ensure compliance across ~12 states and manage statutory leaves (FMLA, NY PFL)
• Supervise on-site Payroll Specialist and collaborate with Finance on GL entries and labor allocations

Skills

Payroll processing

Benefits administration

Multi-state payroll

Open Enrollment

Compliance

Education

Bachelor’s degree in HR, Business, Accounting, or equivalent

Tools

ADP Workforce Now

Job description

About the Role

Winston Staffing has been retained by an established, privately held commercial solutions leader in Western Nassau to recruit an HR Manager for Payroll & Benefits.

This role is designed for a versatile HR professional or Payroll/Benefits specialist from a mid-market private company who excels at taking full operational ownership of multi-state payroll, system configuration inside ADP Workforce Now, and company-wide benefits administration.

Key Responsibilities

• Multi-Entity Payroll: Manage and process multi-state payroll for ~200 employees across two distinct corporate EINs, executing concurrent weekly (hourly) and bi-weekly (exempt) pay runs.
• ADP Workforce Now Administration: Serve as lead system administrator—building custom reports, automating deduction schedules, and eliminating manual spreadsheet workflows.
• Total Rewards & Open Enrollment: Direct the annual Open Enrollment lifecycle across both corporate benefit packages; administer medical, dental, vision, life, and 401(k) plans; audit monthly carrier invoices against payroll registers to prevent billing leakage.
• Compliance & Governance: Ensure compliance across ~12 states (wage/hour, SUI accounts, statutory tax filings); manage statutory leaves (FMLA, NY PFL); compile census documentation for annual 401(k) and Workers' Comp audits.
• Operational Leadership: Supervise an on-site Payroll Specialist and partner directly with Finance on general ledger journal entries, labor allocations, and payroll variance analysis.

Qualifications

• 5–8+ years of hands-on payroll and benefits administration experience within a mid-market private company (HR Managers with full operational payroll ownership or dedicated Payroll & Benefits Managers).
• Direct proficiency in ADP Workforce Now (WFN) is required (custom reporting, benefits administration, and time & attendance).
• Proven experience managing multiple EINs and running concurrent weekly and bi-weekly pay cycles.
• Direct ownership of annual Open Enrollment and monthly carrier bill reconciliations.
• Solid knowledge of NY State labor standards, statutory leaves (PFL/FMLA), and multi-state payroll tax withholding.
• Bachelor’s degree in HR, Business, Accounting, or equivalent practical experience; PHR, SHRM-CP, or CPP is a plus.