Job Summary: Conduct stability studies (physicochemical, microbiological, and chromatographic analyses) to ensure the quality of new products and reformulations in the pharmaceutical industry. Key Highlights: 1. Committed to health and wellness with over 80 years of history. 2. Opportunity to join a company dedicated to excellence in health. 3. Live "A Life in Service of Life" and transform the future of health. Live your purpose and make a difference with Grupo PiSA. With over 80 years of history, Grupo PiSA is a 100% Mexican company committed to the health and wellness of millions of people both in Mexico and internationally. Our growth reflects the effort, passion, and dedication of a team focused on excellence. Join us and become part of a company where every day is an opportunity to live "A Life in Service of Life". Together, we can transform the future of health and leave a positive impact on the world! **Job Objective** Conduct stability studies (physicochemical, microbiological, and chromatographic analyses) in compliance with regulatory requirements to ensure the quality of New Products (NP), Reformulations (RF), and Alternate Manufacturer Evaluations (EFA), and maintain accurate documentation of results to fulfill the program and objectives established by the Business Unit. **Responsibilities and Activities** * Conduct stability studies (physicochemical, microbiological, and chromatographic analyses) for evaluating stability of products within the New Product Development (NP), Reformulation (RF), and Alternate Manufacturer Evaluation (EFA) areas. * Perform activities associated with the Quality System under a code of compliance with Good Manufacturing Practices (GMP). **Experience** * Pharmaceutical industry. * Operation of laboratory equipment and instruments (dissolution testers, analytical balances, pH meters). * Product stability studies. Knowledge * Analytical chemistry and chromatographic techniques. * NOM-059, NOM-073, Good Laboratory Practices (GLP). * Descriptive statistics (mean, standard deviation, etc.). * Gas and liquid chromatography. **Education** Bachelor’s degree in Chemical-Pharmaceutical or Chemical-Biological fields. **Additional Profile Requirements** * Valid internship completion letter (Carta Pasante) is mandatory. * Availability to work rotating shifts. At Grupo PiSA, we prohibit violence and discrimination, promoting equal opportunities, inclusion, and diversity. Our selection processes are FREE OF CHARGE; please report any irregularities to lineaeticagrupopisa@letica.email Employment Type: Full-time Benefits: * Savings fund * Employee discount * Referral program * Life insurance * Discounted cafeteria service * Grocery vouchers Work Location: On-site employment