Senior Payroll Accountant

MANTECH; Herndon (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

MANTECH seeks a motivated, career- and customer-oriented Senior Payroll Accountant to join our team in Herndon, VA. This on-site role requires at least 3 days a week in the office and focuses on accurate, timely payroll processing in a government contracting setting.

You will handle complex payroll tasks, ensure regulatory compliance, and manage garnishments, tax withholdings, and cross-state considerations with a strong emphasis on data integrity and process improvements.

Qualifications

• Bachelor's degree in accounting, finance, or related field; 5+ years payroll in government contracting.

Responsibilities

• Serve as primary payroll contact; manage Service Now tickets and policy guidance.
• Oversee garnishment processes; coordinate with vendors and ensure compliance.
• Handle on-site payroll data, audits, tax reciprocity, and imputed income calculations.
• Validate employee lifecycle data; complete termination, address changes, and leave processing.
• Assist with labor distribution reconciliations, ADP invoices, and statutory filings.
• Develop payroll documentation and implement process improvements.
• Provide training and cross-functional support to junior staff.

Skills

Garnishment management

Multi-state payroll

Payroll processing

Deltek Costpoint

Workday Payroll

Excel

Analytical skills

Communication

Education

Bachelor's degree in accounting/finance

Tools

Deltek Costpoint

Workday Payroll

Job description

MANTECH seeks a motivated, career and customer-oriented Senior Payroll Accountant to join our team in Herndon VA. This position requires it to be on site at least 3 days a week.

The Senior Payroll Accountant will leverage their strong technical background and knowledge to ensure the accurate and timely processing of payroll within a dynamic government contracting environment. You will handle complex payroll tasks, provide guidance on regulations, and ensure strict compliance with all applicable laws including prevailing wage requirements and multi-state taxation.

Responsibilities Include But Are Not Limited To

• Payroll Inquiries & Customer Support: Serve as the primary contact for payroll-related inquiries, managing Service Now tickets while providing expert guidance on company policies, timekeeping, and general payroll matters.
• End-to-End Garnishment Management: Manage all garnishment processes, including Workday setups, ledger balancing, ADP vendor coordination, termination notices, and serving as the subject matter expert for garnishment-related matters.
• On-Site Operations & Data Integrity: Manage daily on-site physical payroll mail receipt and organization, fully trained to execute full-cycle payroll processing back-up, audit tax reciprocity rules, review relocation expense lists to calculate taxable vs. non-taxable costs, process imputed income for tax withholdings, and maintain core data integrity(Payroll Inputs).
• Lifecycle Events & Report Validations: Oversee employee lifecycle processing, including daily termination report reviews, final pay and off-cycle check process per state provisions, and daily validations for new hire, primary address change, and leave reports & resolve outstanding issues.
• Accounting, Reconciliations & Statutory Reporting: Assist on labor distribution reconciliation, perform payroll tax deduction reconciliations against ADP invoices and provide ledgers, and manage statutory compliance filings including monthly labor statistics and quarterly multiple worksite reports.
• Process Improvement & System Enhancements: Handle the development of payroll documentation as needed, implement process improvements, and test new payroll technologies to enhance compliance and operational efficiency.
• Team Collaboration & Training: Provide comprehensive training and cross-functional support to junior staff and team members across general payroll, tax filings, garnishment and special projects as needed.

Minimum Qualifications

• Bachelor's degree in accounting, finance, or a related field preferred with 5+ years of progressively responsible experience in payroll within a government contracting environment.
• Significant experience with multi-state payroll processing and Garnishment & tax compliance.
• Proficiency in payroll software and timekeeping systems, Deltek Costpoint and/or Workday Payroll a must.
• Advanced proficiency in Microsoft Excel, Word, and Adobe Acrobat.
• Ability to manage payrolls for > 1500 employees
• Strong analytical, problem-solving, and organizational skills.
• Self-Starter with excellent communication and interpersonal skills to resolve complex timekeeping & Payroll discrepancies.

Preferred Qualifications

• Certified Payroll Professional (CPP) certification.
• Ability to manage payrolls for > 3000 employees

Clearance Requirements

• US Citizenship

Physical Requirements

• Must be able to remain in a stationary position 50% of the time.
• Needs to occasionally move about inside the office to access file cabinets and office machinery.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
• Be able to exchange accurate information about complex situations.