Full-Time About the Role We are seeking a highly detail‐oriented Accounts Receivable Specialist with strong experience managing invoicing across multiple customer portals. The ideal candidate thrives in a fast‐paced environment, communicates professionally with internal and external stakeholders, and consistently delivers accurate, timely results. Key Responsibilities Process, submit, and track invoices through customer portals including OpenInvoice, OpenTicket, Ariba, and other industry platforms Reconcile customer accounts, resolve discrepancies, and ensure timely payment posting Monitor aging reports and follow up on outstanding receivables with professionalism and persistence Collaborate with customers, operations, and internal teams to resolve billing issues Maintain accurate records within the company's ERP system Support month‐end close activities, reporting, and audit requests Uphold high standards of accuracy, documentation, and customer service Qualifications 3-5 years of Accounts Receivable experience Strong working knowledge of multiple invoicing portals (OpenInvoice, OpenTicket, Ariba, etc.) Experience with ERP systems (SAP, Oracle, NetSuite, or similar) Exceptional attention to detail and accuracy Strong customer service and communication skills Ability to manage deadlines, prioritize tasks, and work independently Proficiency in Microsoft Excel and standard office applications Preferred Skills Experience in oil & gas, industrial services, or field‐ticketing environments Familiarity with purchase orders, field tickets, and service billing workflows