Job Summary: We are seeking an Accounting/Collections Assistant to handle accounting, billing, collections, and customer service, with experience using CONTPAQ. Key Highlights: 1. Dynamic role in accounting, billing, and collections 2. Proficiency in CONTPAQ systems and customer service 3. Opportunity for professional development in an on-site position We are looking for an Accounting/Collections Assistant with a minimum of one year’s experience handling the **CONTPAQ ACCOUNTING/COMMERCIAL** system, collections, SAT portal management, and invoicing. Responsibilities: * **Reception and assistance of office visitors** * **Collections** (requesting energy reports from relevant departments and preparing payment letters for clients) * Issuing **invoices** and payment complements * Maintaining up-to-date **accounting records** in the system, as well as cash flow reports and annexes * Customer service for issue resolution and timely payment scheduling * Completing channel contracts and annexes (requesting information from channels to keep the file updated) * Drafting promissory notes * Maintaining an active client portfolio and closely tracking the status of each client * Physical and digital storage of internal client contracts Requirements: * Minimum one year of experience in a similar position. * Advanced Excel skills (pivot tables, formulas, etc.). * High school diploma / Technical degree in Accounting * Customer service orientation * Knowledge of electronic invoicing * Proficiency in the **Contpaq COMMERCIAL and ACCOUNTING** system * Client collections experience Skills and Competencies: * Organization and results-oriented mindset * Analytical ability and problem-solving skills * Effective communication * Teamwork * Proactive attitude We Offer: * Work schedule: Monday to Friday, 9:00 am to 6:00 pm * Statutory benefits * Net salary of 12,000\-14,000 * Job stability Employment Type: Full-time Salary: $12,000\.00 \- $14,000\.00 per month Work Location: On-site employment