Castellum Inc.

Payroll Manager

Castellum Inc.

full-time

Posted on:

Location Type: Office

Location: Hollywood • Maryland, Virginia • 🇺🇸 United States

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Salary

💰 $90,000 - $120,000 per year

Job Level

Mid-LevelSenior

About the role

  • Manage and oversee end-to-end payroll processing for all employees across multiple legal entities and states
  • Ensure payroll is processed accurately, timely, and in compliance with federal, state, and local regulations
  • Review and approve payroll registers, payroll tax filings, and related journal entries
  • Maintain payroll records including earnings, deductions, benefits, garnishments, and taxes
  • Ensure compliance with FAR, DFARS, DCAA, and other government-contracting payroll requirements, as applicable
  • Coordinate payroll tax filings, reconciliations, and year-end activities including W-2s and state filings
  • Serve as the primary point of contact for payroll audits, internal reviews, and external inquiries
  • Partner with HR and Accounting to ensure accurate employee setup, benefits deductions, and general ledger integration
  • Lead payroll-related aspects of acquisitions, including system integration, data conversion, and process harmonization
  • Develop, document, and enhance payroll policies, procedures, and internal controls
  • Identify opportunities to improve efficiency, automation, and scalability of payroll processes
  • Supervise, mentor, and develop payroll staff as applicable
  • Maintain strict confidentiality of payroll and employee information
  • Support general accounting activities and cross-functional initiatives as needed

Requirements

  • 5+ years of progressive payroll experience, including payroll management or leadership responsibility
  • Hands-on experience administering payroll through ADP platforms (e.g., ADP Workforce Now or similar), including payroll processing, reporting, tax filings, and system integrations
  • Demonstrated experience managing multi-state payroll and payroll tax compliance
  • Strong working knowledge of payroll systems and integrations with accounting platforms
  • Advanced proficiency in Microsoft Excel and other Microsoft Office applications
  • Strong analytical, organizational, and problem-solving skills
  • High degree of initiative with the ability to manage competing priorities and deadlines
  • Ability to work independently and collaboratively in a fast-paced, growing organization
  • Experience in government contracting or highly regulated environments preferred.
Benefits
  • medical
  • dental
  • vision
  • paid time off
  • Federal holidays
  • 401(k) matching
  • tuition reimbursement
  • company paid trainings
  • “Above and Beyond” recognition

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
payroll processingpayroll tax compliancepayroll managementdata conversionsystem integrationpayroll reportingpayroll auditspayroll policiesMicrosoft ExcelMicrosoft Office
Soft skills
analytical skillsorganizational skillsproblem-solving skillsinitiativeability to manage competing prioritiesindependencecollaborationmentoringsupervisionconfidentiality