If you are an expert in comprehensively managing billing and collections processes, a private security company wants you to join its team. Your objective will be to ensure the timely and accurate issuance of digital tax receipts (CFDI), the preparation and delivery of documentary evidence (e.g., service logs) supporting incidents related to services provided to our clients, as well as effective follow-up on accounts receivable to guarantee timely recovery of the company’s revenue. **Requirements** * Bachelor’s degree in Accounting, Finance, Administration, or related field. * Age: 30 to 48 years * Minimum 1 year of experience **RESPONSIBILITIES:** * Collect and organize evidence of services rendered during the billing period * Preparation and issuance of electronic invoices (CFDI) * Generation of payment complements * Issuance of credit notes and cancellations * Updating the customer database * Filing and organizing documentation * Basic telephone follow-up on accounts receivable * Bank reconciliations * Receipt and recording of payments * Analysis of aging balances * Preparation of portfolio reports * Reconciliations with clients * Preventive and corrective collections management * Application of payments and follow-up on discrepancies **Knowledge** * Electronic invoicing CFDI 4\.0 * Payment complements and credit notes * SAT regulations and tax compliance requirements * Basic accounting principles (NIF) * Accounts receivable and portfolio management * Collections and negotiation techniques * Microsoft Excel (pivot tables, VLOOKUP, formulas) * Billing software (Aspel, Microsip) * Microsoft Word and Outlook * SAT portal **Competencies** * Attention to detail \- Effective communication \- Customer orientation \- Adaptability * Negotiation \- Organization \- Stress tolerance \- Proactivity \- Self-discipline * Analytical thinking \- Problem solving \- Teamwork \- Perseverance **WE OFFER**: * **Base salary:** $12,000 \- $13,000 MXN monthly net (based on experience) * Statutory benefits * Employment type: Full-time / Indefinite-term contract * Schedule: Monday to Friday, 8:00 a.m. to 5:30 p.m. * Work modality: On-site **ADDRESS**: Sierra Santa Rosa 49 A, Miguel Hidalgo, CDMX Tel. 55\.45\.22\.68\.37 Job type: Full-time Salary: $11,000\.00 \- $12,000\.00 per month Work location: On-site employment