Interstate Waste Services is the most progressive and innovative provider of solid waste and recycling services in the country! We primarily service Northern New Jersey, Southern New York State, New York City, Connecticut, with a state-of-the-art rail served landfill located in Ohio. We cater to a diverse range of residential, industrial and commercial customers. Our mission has always been to provide our customers with the highest quality waste, recycling and environmental services, while keeping focus on employees, customers and environmental safety. 

What makes our company culture unique is we have mastered the ability to balance the standards of a large corporate company while maintaining our small business family style culture. 

We are seeking a highly analytical and improvement-focused Billing Analyst to join our Finance team. This role is responsible for end-to-end billing audits, reconciliations, reporting, and cross-functional collaboration to ensure accurate customer billing and revenue recognition. A critical aspect of this position is to identify process inefficiencies, drive root cause problem-solving, lead process mapping efforts, and clearly communicate findings through professional presentations. The successful candidate will work extensively in Tower, our billing system, and Billtrust, our invoice presentment system, to ensure accuracy, transparency, and operational alignment.

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.  Other duties may be assigned.

• Conduct routine and ad hoc billing audits within Tower to ensure billing accuracy and alignment with service records, contracts, and operational data. Resolve discrepancies through structured root cause analysis.
• Perform detailed reconciliations between Tower, operational systems, and ERP data. Identify root causes of billing discrepancies and implement corrective actions.
  
  
• Ensure timely and accurate invoice delivery through Billtrust. Validate that invoices reflect correct charges and customer account configurations.
• Generate recurring and ad hoc billing reports. Deliver clear, actionable insights to Finance, Operations, and leadership teams.
• Lead initiatives to streamline billing, reduce errors, and improve data flow between systems. Create and maintain process maps and standardized documentation to support consistent execution.
• Use structured methodologies (e.g., 5 Whys, Fishbone, Pareto) to investigate billing issues and drive sustainable improvements across systems and teams.
• Partner with field operations and customer service to ensure accurate reflection of services in billing, especially during route changes, container swaps, or frequency adjustments.
• Support the financial and operational integration of acquired companies by validating billing data in Tower, aligning practices with company standards, and reconciling legacy systems. Monitor post-acquisition billing accuracy and present findings.
• Work closely with IT and system administrators to enhance usage of Tower and Billtrust. Recommend improvements and assist in user testing and deployment of system updates.
• Create and deliver clear, concise presentations to communicate process changes, audit outcomes, integration updates, and improvement initiatives to various stakeholders.
• Maintain detailed documentation of billing processes, system workflows, and audit trails. Ensure compliance with internal policies and audit standards.
• Partner with operations, accounting, finance, and IT teams to ensure accurate and efficient revenue reporting.

Provide training and guidance to internal teams on billing and related best practices

• Bachelor’s degree in Finance, Accounting, Business Administration, or related field.
• 2–4 years of experience in billing, financial operations, or accounting with a focus on process improvement and system use.
• Experience working in Tower (billing system) and Billtrust (invoice presentment platform) strongly preferred.
• Proficiency in Microsoft Excel (pivot tables, lookups, advanced formulas).
• Experience with process mapping tools (e.g., Visio, Lucidchart, Miro) and documenting current/future-state workflows.
• Strong presentation and communication skills; ability to convey technical information clearly to diverse audiences.
• Demonstrated success with structured root cause problem-solving and continuous improvement initiatives.
• Comfortable collaborating cross-functionally in a fast-paced environment.
• Experience in the waste management, utilities, logistics, or field services industry preferred.
• Involvement in post-acquisition integration and billing system transitions preferred.
• Exposure to Lean, Six Sigma, or other process improvement methodologies preferred.
• Familiarity with route-based billing logic and service-to-invoice workflows preferred.

This job description is intended to be an accurate representation of the general functions of the job, rather than exhaustive list of duties, responsibilities, or experience. Other duties may be assigned, requested, or required. Aspects of the job may be altered without notice.

Interstate Waste Services provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.