Requirements: * Bachelor’s degree in Administration or related fields; * Advanced Excel skills; * Relevant work experience. Skills: * Attention to detail; * Organizational skills; * Teamwork. **Responsibilities:** 1. Daily verification of authorization codes for medical appointments; 2. Monitor and control billing deadlines according to established timeframes; 3. Perform electronic billing in systems and for health insurance providers, ensuring compliance, and contacting providers when corrections are needed; 4. Enter health plan-related data and procedures into the company's management system and inform staff; 5. Review completed services, close invoices for contracted health plans, submit them accordingly, and verify expiration dates of insurance contracts; 6. Prepare forms and documentation required for billing, issue and send invoices to respective insurance providers; 7. File appeals for denied claims with insurance providers; 8. Record payments received from insurance providers; 9. Perform other related duties as necessary for the department or company. Work schedule: Business hours, Monday to Friday Compensation: Base salary + Transportation allowance + Meal allowance + Unimed health plan Employment type: Full-time CLT Salary: BRL 3,500.00 – BRL 3,800.00 per month Benefits: * Meal allowance * Transportation allowance Education: * Bachelor’s degree (Preferred) Experience: * Medical Billing (Required)