**Responsibilities:** * Conduct tests and analyses on concrete, concrete blocks, ceramic blocks, and mortar. * Provide on-site support at client construction sites, where sample collection for slump tests will be performed (training will be provided). * Mold test specimens into metallic 10x20 molds (training will be provided). * Unmold test specimens at the laboratory. * Identify samples using wax chalk and place them into immersion tanks for curing. * Collect block samples from construction sites. **Requirements:** * High school diploma * Valid driver's license category B * Flexible availability / Willingness to travel to branches (Bauru and São José do Rio Preto) RESUMES TO: **ecocontroletecnologico@outlook.com** **\+55 16 99720\-3236** Mention in subject: **Lab Assistant** Job type: Full-time CLT Salary: Starting at R$2\.039,19 per month Benefits: * Partnerships and commercial discounts * Life insurance * Meal allowance * Transportation voucher * Company vehicle Screening questions: * Are you available for travel? * Do you have a driver's license? Which category? * Have you previously worked in the construction sector? * Are you available for flexible hours and weekends?