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London Approach in Willingboro, NJ is seeking an experienced Senior Payroll Specialist to independently process high-volume weekly payroll for 900+ employees across multiple states. This role demands accuracy, compliance, and timely reporting in a fast-paced environment.
The ideal candidate has deep ADP Workforce Now experience, advanced Excel skills, and a proven ability to manage complex commissions and multi-state payroll while collaborating with HR and Finance.
Willingboro , New Jersey Contract To Hire Nov 6, 2026
Location: Willingboro, NJ
Employment Type: Temp-to-Hire
Work Arrangement: 100% Onsite
Schedule: Monday-Friday, 8:00 AM–5:00 PM
Start Date: ASAP
We are seeking an experienced Senior Payroll Specialist to join a growing organization in Willingboro, NJ. This individual will be responsible for independently processing high-volume, multi-state weekly payroll while ensuring accuracy, compliance, and timely reporting.
The ideal candidate will have extensive experience with weekly payroll processing, complex commission calculations, ADP Workforce Now, and advanced Excel functions. This is a hands-on position within a fast-paced, deadline-driven environment that requires exceptional attention to detail, strong organizational skills, and the ability to manage a consistently demanding workload.
Payroll Processing & Administration
Independently process high-volume weekly payroll for approximately 900+ employees across multiple states.
Calculate, validate, and process complex monthly commission payments for a large commission-eligible employee population.
Review and audit employee timecards, timesheets, and payroll data to ensure accuracy before processing.
Maintain employee payroll records, including new hires, terminations, transfers, compensation changes, and adjustments.
Process payroll deductions, including benefits, garnishments, retirement contributions, and applicable taxes.
Utilize ADP Workforce Now and associated timekeeping systems to manage payroll operations.
Investigate and resolve payroll discrepancies while meeting strict weekly processing deadlines.
Payroll Compliance & Reporting
Ensure compliance with federal, state, and local payroll regulations, wage laws, and tax requirements.
Prepare payroll reports, reconciliation files, and supporting audit documentation.
Partner with HR and Finance to reconcile payroll accounts and resolve discrepancies.
Support quarterly and year-end payroll activities, including W-2 preparation, tax reporting, and audits.
Maintain accurate payroll documentation and ensure confidentiality of employee information.
Respond to employee payroll inquiries and provide timely resolutions.
Systems & Process Improvement
Utilize advanced Excel functions, including VLOOKUPs, formulas, data validation, and large data set manipulation.
Perform detailed reconciliations and calculations related to commission payments and payroll reporting.
Identify and resolve inconsistencies in payroll and timekeeping data.
Assist managers and employees with payroll and time and attendance systems.
Support payroll process improvements to maintain efficiency, accuracy, and compliance.
Minimum of 5 years of hands-on payroll processing experience required.
Strong experience independently processing high-volume payroll, ideally 900+ employees.
Demonstrated experience managing weekly payroll cycles with strict deadlines.
Experience calculating and processing complex commissions or other variable compensation.
Strong proficiency with ADP Workforce Now (WFN) preferred, including Enhanced Time & Attendance and E-Time.
Advanced Microsoft Excel skills required, including VLOOKUPs, formulas, reconciliations, and manipulating large data sets.
Experience processing multi-state payroll for both hourly and salaried employees.
Strong understanding of payroll taxes, deductions, garnishments, benefits, and payroll compliance.
Experience with payroll reporting, audits, and year-end processing.
Exceptional attention to detail and numerical accuracy.
Ability to manage multiple manual payroll processes while maintaining accuracy and meeting deadlines.
Strong organizational, analytical, and problem-solving abilities.
Excellent communication skills and the ability to collaborate with HR, Finance, and management.
Comfortable working in a consistently busy, high-pressure environment with minimal downtime.
Associate's degree in Accounting or a related field preferred; equivalent relevant experience considered.
Medical, dental, and vision insurance.
Paid time off and company holidays.
401(k) retirement plan with company matching.
Company-paid life insurance.
Short-term and long-term disability coverage.
Opportunity to work within an established payroll team and take ownership of complex payroll functions.
Collaborative environment with opportunities to contribute to payroll efficiency and process improvements.