Stream Environmental is an environmental services company based in Houston, TX, specializing in used oil recycling, waste disposal, transportation, and field services. The organization operates a diverse fleet of trucks supporting a wide range of environmental and industrial needs. Our team brings more than 100 years of combined experience in problem-solving and waste and project management. Stream Environmental is committed to fast, efficient customer service and to converting waste streams into recyclable energy whenever possible, giving team members the opportunity to contribute to sustainable solutions in the environmental sector.

Role Description
The Project Biller is a full-time, on-site role located in Houston, TX. This role is responsible for preparing accurate, timely invoices for environmental service projects based on completed field work and contractual terms. Day-to-day responsibilities include:

- Gathering and reviewing field tickets, work orders, manifests, bills of lading, timesheets, and disposal records from operations and field services teams
- Verifying labor, equipment, transportation, disposal, and material charges against customer contracts, rate sheets, quotes, and purchase orders
- Entering billing data and generating invoices in the billing or ERP system
- Submitting invoices through customer portals and meeting customer-specific billing requirements and deadlines
- Following up on missing or incomplete documentation so projects can be billed promptly
- Researching and correcting billing errors, credits, and rebills
- Maintaining organized billing records and supporting documentation for each project
- Assisting with month-end close, unbilled work reports, and accounts receivable inquiries
- Communicating with project managers, field supervisors, and customers about invoice questions and billing status

Qualifications

- Experience in project billing, invoicing, or accounts receivable, preferably with job- or project-based billing
- Ability to read and interpret field tickets, contracts, rate sheets, and purchase orders
- Strong attention to detail and accuracy when working with high volumes of invoices and supporting documents
- Proficiency with Microsoft Excel and experience with accounting or ERP software
- Experience with customer invoicing portals (such as Ariba, Coupa, or OpenInvoice) is a plus
- Ability to manage multiple projects and deadlines at the same time
- Clear, professional communication skills for working with internal teams and customer contacts
- Experience in environmental services, waste management, oilfield, or industrial services is preferred
- High school diploma or equivalent required; an associate degree or coursework in Accounting, Business, or a related field is a plus