Position: Administrative Assistant–Commercial Area: Administration and Sales Location: Coyoacán CDMX Position Objective Support the General Management in administrative and commercial functions of the company, ensuring control over billing, collections and purchasing, as well as preparation of quotations and customer follow-up. Contribute to operational efficiency and generation of business opportunities by relieving management from operational tasks so they can focus on Siker's strategic growth. Main Responsibilities 1\. Administration and Control Request, record, and send invoices timely and accurately. Follow up on invoice uploads to customer portals and confirm acceptance with proper remittance. Monitor credit terms (30 natural days) and track due dates. Assist in scheduling supplier payments and document control. Update weekly reports on invoicing, overdue accounts, cash flow, and purchases. 2\. Sales and Customer Service Prepare quotations based on customer requests. Follow up on sent proposals and confirm sales closures. Respond professionally to customer emails and phone calls. Identify opportunities for additional or cross-selling. Keep customer records and quotations updated. 3\. Purchasing and Optimization Request supplier quotations and compare options. Analyze costs and propose the best purchase alternative in terms of quality, price, and delivery time. Negotiate favorable delivery, credit, and discount terms. Generate authorized purchase orders and follow up on delivery schedules. Confirm delivery dates with suppliers and customers. Track order issues (shortages, returns). 4\. Communication and Coordination Draft formal collection emails, quotation follow-ups, and negotiation messages. Maintain updated digital and physical files with remittances, POs, and quotations. Suggest improvements in templates, formats, and workflows (e.g., automate quotations in Excel, standardize collection emails). Identify administrative bottlenecks and suggest solutions. Required Profile Education: Technical high school diploma or Bachelor’s degree in Administration, Accounting, Business, or related field. Experience: Minimum 2 years in administrative roles involving sales, purchasing, and/or quotations. Technical Skills: oIntermediate to advanced Excel (pivot tables, filters, reconciliations). oExperience with electronic invoicing and customer portals. oPreparation of quotations, purchase orders, and supplier management. Soft Skills: oOrganization, punctuality, and attention to detail. oNegotiation and customer service skills. oClear and professional writing. oProactive mindset to suggest improvements and identify opportunities. Working Conditions Schedule: Monday to Friday, 9:30–18:30 hrs Modality: On-site Contract Type: Indefinite term with probation period Benefits: As per labor law Position Type: Full-time Salary: $11,000.00 \- $13,000.00 per month Workplace: On-site employment