Job Summary: HALFEO COMERCIALIZADORA MX is seeking a Billing Administrative Assistant with skills in CONTPAQi and the SAT platform. Key Highlights: 1. Leading company in the administrative and accounting sector. 2. Opportunity for professionals with experience in invoicing. 3. Join a team focused on continuous improvement. Job Offer Billing Administrative Assistant Location: Cuajimalpa de Morelos, Ciudad de México Company: HALFEO COMERCIALIZADORA MX Posted on March 13, 2026 Valid until March 28, 2026 Net Monthly Salary $12,500.00 Apply Reference Number: 21090159 Description A leading company specializing in Administrative, Accounting, and Human Resources sectors invites you to join its team as a BILLING ADMINISTRATIVE ASSISTANT. If you possess skills related to CONTPAQi usage, knowledge of the SAT platform, XML file downloads, etc., do not hesitate to apply—we will be delighted to contact you. Requirements * Required academic level: Bachelor’s degree * Required field of study (related): Public Accounting * Experience: 1–2 years as a Billing Administrative Assistant * Knowledge and tools: + Management of petty cash + Preparation of credit notes, canceled invoices, and re-invoicing * Language(s): * Skills and competencies: + Stress tolerance + Customer orientation + Results orientation + Continuous improvement + Autonomy * Candidate availability: + No travel required Schedule Monday to Friday Full-time 09:00–18:00 Functions and Activities The company offers * Social Security * Vacation days upon completion of one year * Thirteenth-month bonus (aguinaldo) * Indefinite-term employment contract Recruitment Process * Start date of your recruitment process: March 13, 2026 * Duration of recruitment process: 2 weeks