Associate Project Accountant

Our Long Island, New York - based client is seeking a detail-oriented Associate Project Accountant /Billing Associate to join their team. The ideal candidate will be equally comfortable preparing accurate, contract-compliant invoices and proactively communicating with clients to ensure timely payment. This role requires a strong understanding of project-based billing (including progress billing, change orders, and compliance requirements) along with the ability to build positive, long-term relationships with customers during the follow-up process.

Responsibilities

• Prepare, review, and issue project-based invoices, including progress billing, milestone billing, and approved change orders
• Ensure all billing aligns with contract terms, job progress, and supporting documentation
• Coordinate with Project Managers, Operations, and Accounting to validate billing accuracy
• Maintain accurate and organized billing records within the accounting/ERP system
• Assist with certified payroll reporting, including prevailing wage and union-related requirements
• Support compliance with union agreements, job cost tracking, and audit requirements
• Conduct proactive outreach via phone and email to follow up on outstanding invoices
• Build and maintain strong relationships with customers, AP contacts, and municipal clients
• Monitor AR aging reports and consistently follow up on overdue accounts
• Investigate and resolve billing discrepancies in a timely and professional manner
• Maintain detailed records of client interactions and collection efforts
• Generate billing, AR aging, and collections reports for management review
• Assist with month-end close processes related to billing
• Collaborate across departments to improve billing accuracy and cash flow efficiency

Qualifications

• 3+ years of experience in accounts receivable, billing, or collections
• Strong preference for experience in construction, low-voltage, electrical, HVAC, or similar project-based industries
• Experience with project-based billing (progress billing, change orders, etc.)
• Certified payroll and prevailing wage experience highly preferred
• Familiarity with union jobs and job cost tracking preferred
• Proficiency in accounting/ERP systems and Microsoft Excel
• Strong attention to detail and organizational skills
• Excellent communication skills—professional, clear, and relationship-focused
• Comfortable handling client communication via phone regularly
• Ability to manage multiple projects, accounts, and deadlines simultaneously