Work in the areas of sewage collection and treatment, performing operational and support activities, including: * Operation of sewage treatment plants (STP); * Operation of motor-pump sets; * Installation and maintenance of flow meters; * Driving and operation of automotive equipment; * Conducting hydrobiological, physicochemical, and bacteriological analyses of sewage. Job type: Full-time, Permanent CLT Pay: from BRL 2,300.00 per month Benefits: * Medical insurance * Dental insurance * Profit sharing * Life insurance * Food voucher * Meal voucher * Transportation voucher