We are looking for a responsible and organized Billing and Collections Assistant to support the proper issuance, tracking, and control of company invoices, ensuring data accuracy and compliance with fiscal requirements. Responsibilities: * Elaboration and issuance of electronic invoices. * Review of purchase orders, sales orders, and contracts to validate billing information. * Management and control of CFDI (invoices, credit notes, complements). Sending and follow-up of invoices with customers. * Basic collections management (payment follow-up, confirmations, reporting). * Filing and safekeeping of related documents. * Support in administrative tasks within the department. **Requirements:** * High school diploma or technical/administrative studies (completed or in progress). * Experience in billing (desirable). * Proficiency with billing platforms and customer portals. * Basic knowledge of CFDI and tax requirements. * Good Excel skills. Attention to detail, organizational ability, and effective communication. **We offer:** * Competitive salary based on experience. * Statutory benefits. * Training on processes and systems. * Growth opportunities within the administrative department. * Working hours: Monday to Friday, 9 AM to 6 PM. * Excellent work environment. Position type: Full-time, Indefinite duration Salary: Starting at $7,000.00 per month Benefits: * Eligibility for indefinite contract * Life insurance Work location: On-site position