**Activities to be performed:** Assembly, installation and interconnection of hydraulic systems for water treatment equipment (filters, water softeners, reverse osmosis units, chemical dosing systems, etc.). Reading and interpretation of hydraulic project drawings, isometric diagrams, and flow diagrams. Installation of PVC, CPVC, and PEAD piping, including cutting, threading, and gluing. Assembly and installation of hydraulic pumps, manual and automatic valves, shut-off valves, flow meters, and pressure gauges. Conducting leak-tightness, pressure, and operational tests on hydraulic systems. Alignment, fixation, and leveling of equipment and hydraulic assemblies. Support in the installation and calibration of chemical dosing and process control systems. Identification and correction of leaks, operational failures, and hydraulic issues. **Professional experience:** Experience in water treatment systems (WTP, WWTP) is desirable. **Experience duration:** Minimum of 6 months of experience. **Education:** Completed high school (Technical Course in Hydraulics). **Courses:** Technical qualification in the field of operation (Hydraulics); Computer skills – intermediate level. **Salary:** To be agreed upon + Transportation Allowance (VT). **Benefits:** Meal Voucher (VR) or Food Allowance (VA) – R$ 38.00 per day. **Working hours:** Monday to Thursday, from 08:00 to 18:00; Friday, from 08:00 to 17:00. **Desirable:** Reside nearby or have easy access to the workplace. Minimum Education Level: Technical Course Meal Voucher or Food Allowance – R$ 38.00 per day