Accounting Assistant

Interplan is a collaborative, people-first organization that values accuracy, accountability, and strong internal partnerships. Our Accounting team plays a critical role in supporting project teams, clients, and leadership by ensuring financial data is timely, accurate, and well-documented. We’re looking for a Part time Accounting Assistant who is detail-oriented, dependable, and eager to support day-to-day accounting operations.

The Role

The Accounting Assistant supports Accounts Payable and project accounting activities, with a focus on expense processing, billing support, and transaction accuracy. This role works closely with Accounting, Production, and Operations teams to ensure costs are properly reviewed, coded, approved, and recorded in Deltek systems.

What You’ll Be Doing

Shipping & Printing Charges

• Review weekly UPS billing statements, export charges from UPS, and import them into Deltek Vantagepoint
• Save and maintain required billing backup documentation provided to clients
• Review weekly plotting/printing charges from printing software, verify correct job coding, and import data into Deltek
• Ensure all printing-related charges have proper billing backup saved and organized
  
  

Expense Reports

• Serve as the primary reviewer for employee expense reports, ensuring accuracy, completeness, and compliance with internal policies
• Verify expense alignment with client contracts and project requirements
• Post approved expense reports in Deltek in a timely manner
  
  

Permits & Client Fees

• Assist with monitoring and processing permit and plan review fees paid on behalf of clients
• Support approval workflows to ensure proper authorization and client reimbursement
• Help ensure costs are accurately tracked and billed to the appropriate projects
  
  

Accounts Payable Support

• Assist with AP transaction entry, invoice processing, and approval follow-ups
• Enter invoices into Deltek Vantagepoint and help track outstanding approvals
• Support consultant statement reconciliation, ensuring invoices align with statements and contracts
  
  

Purchase Orders

• Process and reconcile IT-related purchase orders, including vouching and matching to invoices
• Ensure PO documentation is complete and accurately recorded
  
  

What You’ll Bring

• 1–3 years of experience in accounting, accounts payable, or a related financial role
• Strong attention to detail and ability to review financial data for accuracy and compliance
• Experience working with Deltek Vantagepoint or similar project-based accounting systems (preferred)
• Proficiency with Microsoft Excel and basic accounting software
• Ability to manage recurring weekly tasks and multiple deadlines
• Strong organizational and documentation skills
• Clear communicator with the ability to follow up on approvals and resolve discrepancies
  
  

Preferred Qualifications

• Experience in a professional services, architecture, engineering, or consulting environment
• Familiarity with expense reporting systems and project-based billing
• Understanding of client contract requirements and reimbursable expenses
  
  

Why You’ll Love Working Here

• Continuing Education and Professional Development
• Active employee lead activities committee
• Employee Assistance Program
• Health and Wellness Program
• Paid Holidays
  
  

At Interplan, we’re a people first organization that believes great outcomes come from great relationship within our team and with every client we serve. We combine a high-accountability, high-support environment with a genuinely collaborative culture where ideas are welcomed, wins are shared, and learning never stops.