Position Summary: We are seeking a proactive and organized professional for customer follow-up, information handling, file control, and database creation, with emphasis on billing and attention to detail. Key Highlights: 1. Customer follow-up and information management. 2. Accounting system and Office software proficiency. 3. Customer service orientation and teamwork. Main Responsibilities: * Customer follow-up. * Invoice downloading via digital portals. * Physical and digital file control. * Information handling (reports, files, records, etc.). * Database creation and updating. Requirements: * Minimum 2 years of experience. * Familiarity with and/or knowledge of the billing area. * Proficiency in CASA and CONPAQi systems. * Office software proficiency. * Customer service orientation. * Teamwork skills. * Proactive attitude. * Speed and accuracy in data entry. * Attention to detail. * Collections management. * Organizational skills. * Up-to-date knowledge of SAT requirements. 100% on-site work Job Type: Full-time Salary: $10,000\.00 \- $12,000\.00 per month Benefits: * Option for indefinite-term contract * Food vouchers Work Location: On-site employment