Billing Analyst Sr

Headquartered in Houston, Texas, Wellbore Integrity Solutions (WIS) operates globally in the oilfield services sector, and provides customers with a suite of products, applications, and services on ensuring well integrity throughout the life of the well. We employ more than 1,300 people working across six continents in over twenty-five countries.

If you’re looking for an opportunity to build your career in an exciting and inspiring entrepreneurial environment, where your contributions are valued, and you can have a global impact, then come and grow with WIS! We value our relationships with our employees and are committed to creating a high-performance culture that fosters healthy relationships among a diverse team of talented individuals.

The Senior Billing Analyst is responsible for overseeing complex billing operations, ensuring accurate and timely invoicing, supporting revenue recognition processes, and driving billing process improvements. This role serves as a key liaison between Finance, Sales, Operations, and customers to resolve billing issues, ensure compliance with company policies, and enhance operational efficiency. The Senior Billing Analyst leverages analytical skills, system expertise, and business acumen to support financial reporting, audit requirements, and strategic initiatives.

• Manage end-to-end billing processes for assigned customers, contracts, or business units.
• Review and process complex customer invoicing, ensuring accuracy, completeness, and compliance with contractual terms.
• Monitor billing cycles and ensure invoices are issued on time to support cash flow objectives.
• Investigate and resolve billing discrepancies, disputes, and customer inquiries.

• Analyze billing data and trends to identify issues, opportunities, and process improvement initiatives.
• Prepare recurring and ad hoc reports related to billing performance, revenue, adjustments, and aging metrics.
• Support month-end and quarter-end close activities, including reconciliations, accruals, and reporting requirements.
• Partner with Accounting on revenue-related analyses and audit support.

• Identify and implement billing process improvements to increase efficiency, accuracy, and scalability.
• Develop and maintain billing procedures, policies, and internal controls.
• Ensure compliance with company policies, SOX requirements, and regulatory guidelines, where applicable.
• Participate in system implementations, testing, upgrades, and automation projects.

• Partner with Sales, Customer Success, Operations, Legal, and Finance teams to interpret contract terms and ensure billing accuracy.
• Support contract reviews and provide guidance on billing implications of customer agreements.
• Coordinate with Accounts Receivable regarding collections-related billing issues and account reconciliations.
• Serve as a subject matter expert for billing policies, systems, and processes.
• Provide guidance and training to Billing Analysts and other team members.
• Assist management with workload planning, process documentation, and special projects.
• Contribute to departmental goals and continuous improvement initiatives.

• Bachelor’s degree in accounting, Finance, Business Administration, or a related field.
• 5+ years of experience in billing, accounts receivable, revenue operations, finance, or accounting.
• Strong understanding of billing processes, contract interpretation, and financial controls.
• Advanced proficiency in Microsoft Excel, including pivot tables, lookups, and data analysis.
• Experience working with ERP systems such as Oracle, or similar platforms.
• Strong analytical, problem-solving, and organizational skills.
• Excellent communication and stakeholder management abilities.
• Ability to manage multiple priorities in a fast-paced environment while maintaining attention to detail.

WIS deeply values fair and equitable wages that enable our employees and their families to thrive. As such, we offer a competitive salary that rewards you for the hard-earned education and experience you bring to the role and increases as you continue to grow and develop.

We also prioritize rewarding our employees with benefits that reflect how much we value their contributions. Join us, and you can expect an extensive and generous benefits package, including health insurance, vacation pay based on years of relevant experience not tenure with the…