* Collect concrete volume from stationary mixer or concrete truck for molding test specimens and slump cone testing. * Collection of cured test specimens at construction sites. * Demold and identify test specimens in the laboratory. No experience required. Job type: Full-time, Permanent CLT Pay: R$2.500,00 - R$3.000,00 per month Benefits: * Dental care * Fuel allowance * Partnerships and commercial discounts * Free parking * Life insurance * Meal voucher