Proven work experience as a Billing and Collections Assistant or similar role for at least 2 years. * Practical experience in spreadsheet management. (Intermediate Excel skills) * Collect all necessary information to calculate accounts receivable. * Confirm invoice receipt with customers through various channels. * Respond to inquiries and manage complaints from internal and external customers regarding invoices. * Preparation of reports **Billing sequence and payment complements.** * Creation and maintenance of customer files. \*We offer benefits exceeding legal requirements. Job type: Full-time Salary: $8,000.00 \- $8,800.00 per month Benefits: * Life insurance * Food vouchers Education: * Completed high school (Desirable) Work location: On-site position