Accounting Specialist (Billing)

Responsibilities

• Prepare accurate and timely commercial and government invoices with supporting documentation monthly
• Communicate with Project Managers regarding contract documents, purchase orders, and change orders
• Review new project billing setups and monitor existing projects for billing accuracy
• Investigate billing errors, resolve discrepancies, and reconcile unbilled job costs
• Maintain project billing folders and accounting systems to ensure document accessibility
• Submit invoices through various commercial and government payment portals such as Serengeti, WAWF, Collaborati, and Taulia
• Support the contract and job close-out process and assist other accounting staff with special projects

Requirements

• Minimum 2 years of experience in billing, invoicing, or accounts receivable
• Proficiency in MS Excel, Adobe Acrobat, and MS Word
• Strong analytical, problem-solving, and communication skills
• Ability to coordinate multiple tasks and work effectively in a team environment

Preferred Qualifications

• College coursework in accounting, finance, or business
• Experience in professional services firms such as engineering, architecture, or construction
• Federal government billing experience and knowledge of iRAPT/WAWF or GSA portals
• Knowledge of Deltek Ajera accounting software
• Experience with government contract billing terms abstraction

Benefits

• Competitive salary and benefits, including a retirement savings plan
• Quarterly and year-end bonuses
• Paid time off and holidays
• Professional development opportunities
• Collaborative work atmosphere

About the Company

GSI Environmental Inc. is a privately owned, employee-owned environmental engineering and consulting services firm headquartered in Houston, Texas. With nearly 40 years of operation, GSI is highly respected nationally and internationally for its high-quality professional environmental services and technically advanced projects.