As a **Billing Analyst**, you will be responsible for supporting the regional billing and revenue department in matters related to the core functions of the area, both locally and regionally, with a primary focus on B2B services. Additionally, this position assists in producing financial reports and monthly and quarterly analyses relevant to the company. **Key Responsibilities**. * Process billing updates for regional and local B2B customers, including invoice generation and electronic delivery. * Address regional B2B customer requests. * Conduct reconciliation processes with regional customers in case of discrepancies, issuing credit/debit notes as appropriate. * Prepare and issue invoices for special B2B Cluster B customers. * Ensure amortization and reconciliation of deferred revenue for B2B Cluster B. * Support internal financial audits and regional SOX controls. * Facilitate and complete monthly closing procedures, ensuring timely revenue recognition for the company. * Prepare monthly revenue account reconciliations at the regional level. * Assist in documenting and monitoring internal controls. * Perform monthly analysis of regional revenue by customer and report on variances. * Conduct quarterly reconciliation between Sales and Finance departments using Salesforce / Great Plains / Cerillion databases. **Requirements** * Degree in Business Administration, Industrial Engineering, Economics, Finance, or related fields. * Minimum two (2) years of experience in finance, billing, and accounting knowledge, preferably within telecommunications companies. * Proficiency in computer systems (Office, Power BI), function configuration, data entry, and/or information processing. * Knowledge of mathematics, financial matters, and accounting principles. * Ability to calculate, analyze, classify, and record numerical data to maintain complete financial records. * Ability to set specific goals and plan, prioritize, organize, and execute work. * Effective communication aligned with departmental and company needs. * Demonstrated ability to work under pressure and perform successfully. * Ability to manage multiple projects and handle several tasks simultaneously. * Ability to learn and contribute to overall team performance.