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We are looking for a detail-oriented PART-TIME AR/Billing Analyst to support accurate invoicing and accounts receivable activities in Columbia, South Carolina. This position is ideal for someone who thrives in a structured environment, can manage a high volume of contract billing, and is comfortable coordinating with multiple internal and external contacts. The role requires strong organization, sound judgment when resolving invoice questions, and confidence working in Excel and enterprise billing systems.
Job Responsibility:
Prepare and issue weekly and monthly invoices across a large portfolio of customer agreements, ensuring billing is completed accurately and on schedule
Manage both recurring contract charges and usage-based billing, applying the correct invoicing approach based on each customer agreement
Process labor-related and event-driven charges, including situations where more than one invoice may be required for the same contract
Review billing discrepancies and make adjustments when needed by partnering with payroll and contract management teams to confirm supporting details
Follow up with business customers regarding outstanding balances and support collection efforts across multiple points of contact
Participate in regular accounts receivable reviews to assess aging reports, discuss open balances, and help drive timely resolution
Maintain organized records, checklists, and supporting documentation to track billing status across a high volume of active contracts
Use Excel and the company’s billing platform to analyze account activity, validate invoice data, and support reporting needs
Requirements:
At least 2 years of experience in billing, accounts receivable, or a related finance support role
Practical knowledge of contract billing, including both fixed-fee and variable invoicing structures
Experience handling weekly and monthly billing cycles in a business-to-business environment
Background in collections and resolving invoice issues with external customers and internal stakeholders
Strong organizational skills with the ability to manage numerous active accounts and shifting priorities accurately
Basic to strong working knowledge of Excel for tracking, reviewing, and validating billing information
Ability to communicate effectively with payroll, contract managers, and customer contacts to resolve discrepancies promptly