Outsourced Accounting Services (OAS) Senior Accountant

About the role

Gross Mendelsohn, one of the Mid‑Atlantic’s leading independent CPA and advisory firms, is seeking an experienced Senior Accountant to join our growing Outsourced Accounting Services (OAS) practice. This is a highly visible, client‑facing role focused on serving a diverse portfolio of businesses and nonprofit organizations. The OAS Senior Accountant will act as a trusted financial partner, delivering timely, accurate, and decision‑useful financial information while supporting clients’ day‑to‑day accounting operations. This role is ideal for accounting professionals who enjoy variety, ownership, and building long‑term client relationships.

Responsibilities

• Client Accounting & Financial Reporting
  • Manage monthly, quarterly, and year‑end close processes for assigned clients
  • Prepare and review financial statements to ensure accuracy and timeliness
  • Perform and review balance sheet reconciliations and general ledger activity
  • Maintain audit‑ready financial records and documentation
• Client Relationship Management
  • Serve as a primary point of contact for assigned clients
  • Communicate financial results and insights clearly
  • Build strong, long‑term client relationships
• Transaction Oversight & Process Improvement
  • Review accounting transactions and ensure proper coding
  • Identify and implement process improvements
  • Support onboarding of new clients
• Compliance & Cross‑Functional Support
  • Prepare and review 1099s, sales tax filings, and related compliance items
  • Support audit engagements and collaborate with tax teams
• Team Leadership & Development
  • Train and mentor associates and interns
  • Review work and provide guidance