**ACTIVITIES:** Execute physical, chemical, metallurgical, and biological tests. Collect samples of industrialized products and raw materials; Collect samples and conduct quality tests on industrialized products; Participate in the development of new products and cataloging of new suppliers; Receive and conduct tests and characterize aggregates for mixture dosage preparation; Collaborate in the development of analytical methodologies; Maintain a clean and organized work environment; Work in accordance with safety, health, and environmental regulations. **REQUIREMENTS:** Experience in the field; Bachelor's degree in Chemistry or related fields. **BENEFITS:** **Salary:** R$ 2,186.28 + 30% hazard pay (R$ 2,842.00) Meals on site: breakfast and lunch; Food allowance: R$ 233.74; Medical assistance; Annual profit-sharing; Transportation allowance. **Monday to Friday:** 8:00 AM to 5:48 PM. **Minimum Education Level:** Bachelor's degree