Job Summary: Professional responsible for customer service and execution of administrative routines, including billing and registration control. Key Highlights: 1. Customer service and agile support 2. Billing and management of tax documents 3. Control and updating of registrations **Responsibilities:** * Provide customer service via ticketing system, chat, and WhatsApp, ensuring agile and courteous support. * Execute customer account cancellation and ownership transfer processes. * Perform monthly billing, including issuance of tax invoices and bank slips. * Prepare and send bank remittance files. * Generate the DETRAF file, issue related tax invoices, and submit them to operators. * Prepare and submit mandatory files to ANATEL. * Generate and send specific files to the State (Agreement 115 and 201\). * Control and maintain up-to-date records of active and canceled customers. **Requirements:** * Intermediate knowledge of Excel (spreadsheets, basic formulas, and data organization). * Organization, attention to detail, and agility in performing administrative routines. Employment Type: Full-time, CLT permanent position Compensation: starting from R$2\.500,00\/month Benefits: * Medical assistance * Dental assistance * Life insurance * Meal allowance * Transportation allowance