**Activities:** * Assist in sample collection; * Prepare samples according to operational procedures; * Assist in separating laboratory equipment for testing; * Install equipment in the field; * Set up laboratories in the field; * Maintain and clean laboratory equipment; * Maintain and clean the laboratory. **Requirements:** * High school diploma; * Knowledge in civil construction area. Job type: Full-time CLT Pay: R$1,599.00 per month Benefits: * Medical insurance * Dental insurance * Life insurance