Job Summary: We are seeking an Administrative Assistant to manage collections, billing, and payment receipt while maintaining a client portfolio. Key Highlights: 1. End-to-end management of accounts receivable and billing 2. Telephone customer service for payment follow-up 3. Permanent full-time position with daytime shift Job Description and Responsibilities: * Generation of collection reports * Management of accounts receivable portfolio * Follow-up on overdue accounts receivable * Generation of payment complements * Review of cash register closures * Telephone support for accounts receivable portfolio * Payment receipt * Payment application * Billing follow-up for accounts receivable portfolio Experience and Requirements: * Minimum 6 months of experience in a similar or equivalent role * Proficiency in using computer equipment * Familiarity with email usage * Ability to draft emails * Experience generating payment complements * Experience with billing systems or similar software Benefits: * Benefits in accordance with the Federal Labor Law (LFT) * Uniform * Guaranteed profit-sharing **Number of vacancies** 1 **Department** Administration **Contract type** Permanent **Work modality** On-site **Shift** Daytime **Work schedule** Full-time **Working hours** Full-time * Morning shift * 8-hour shift * Monday to Saturday **Net monthly salary** $16,000 \- $20,000 MXN **Education** High school diploma **Age** 24 \- 40 years old **Willingness to travel** No