Billing Administrative Assistant

We are a systems integration and engineering services company with a passion for tearing down industrial inefficiencies. We believe that systems integration is fundamental to leveraging new and well\-established technologies against operational challenges in the manufacturing and industrial ecosystem. Our objective is to be the trusted, first\-choice service provider for delivering best\-in\-class operational technology to control, automate, operate, analyze and optimize assets.

### About the Role

We are seeking a detail\-oriented and reliable Billing Administrative Assistant to join our accounting team. This remote position plays a key role in ensuring accurate invoicing, timely collections, and maintaining positive client relationships. The ideal candidate is organized, proactive, and comfortable working independently in a fast\-paced environment. This position reports directly to the Billing Specialist but will work daily with project management teams and other accounting staff.

### Key Responsibilities

• Prepare and submit client invoices for all projects within the assigned portfolio, ensuring invoices are accurate, consistent with client requirements, and submitted on a timely basis.
• Upload invoices and supporting documentation to external billing platforms such as SAP, OpenInvoice, OpenTicket, and Ariba.
• Support downloading system\-generated invoices and backup documentation.
• Research and resolve billing issues and inquiries with internal and external clients.
• Coordinate with project managers and other internal departments to ensure billing accuracy and resolve project\-related issues.
• Monitor accounts receivable and follow up on overdue balances.
• Assist with project setup, maintenance, and closeout activities.
• Maintain organized project and billing files.
• Perform additional tasks as requested by the Billing Specialist or Controller.

### Qualifications

• High school diploma or equivalent required; associate degree or higher preferred.
• Two or more years of experience in billing, accounts receivable, or related roles preferred.
• Strong attention to detail and organizational skills; ability to multitask.
• Proficiency in accounting software, Microsoft Excel, and Adobe.
• Excellent written and verbal communication skills.
• Ability to work independently and manage time effectively in a remote environment.

### What We Offer

• Competitive salary
• Remote work flexibility
• Supportive team environment
• Opportunities for professional growth

### Benefits:

• 401(k) and Roth 401(k)
• Dental Insurance
• Health Insurance
• Life Insurance
• Vision Insurance
• Employee Stock Purchase Plan (ESPP)
• Paid time off
• Performance Bonus
• Career Growth Opportunities and Training

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### Why Tetra Tech

In addition to rewarding job opportunities and continuous growth, we offer an enjoyable working environment, where teamwork and respectful collaboration is highly valued. We offer the benefits of a midsized local office atmosphere backed by a large network of highly skilled professionals.

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, military or veteran status, gender, age, disabilities, pregnancy and pregnancy\-related conditions, genetic information and any other characteristics protected by the law. We invite resumes from all interested parties.