Responsibilities: Maintenance and conservation services for areas: 1. Manual cleaning of the plant's influent bar screen using a rake; 2. Collection of screened material and storage into dumpsters; 3. Preventive and post-maintenance cleaning of equipment; 4. Perform cleaning, washing (preventive and corrective) of sand traps, weirs, clarifiers, and treatment systems as needed; 5. Perform cleaning and manual and/or mechanical washing of internal access roads, sidewalks, platforms, yards, segregation zones, and Class II-A (non-hazardous) waste areas where applicable; 6. Where applicable, perform cleaning and manual and/or mechanical washing of fertilizer production bays, fertilizer storage, sludge storage areas, and dumpster parking areas; 7. Clean operational areas, pump houses, and storage facilities; 8. Removal of floating material from Australian-type lagoon systems; 9. Inspection of disinfection systems, hypochlorite dosing, or any chemical product when applicable; 10. Test operation of power generator, when applicable; 11. Minor repairs and painting of curbs and masonry boxes; 12. Other monitoring within ETE boundaries, inspections, and records on control sheets according to Sabesp's environmental management system; 13. Routine reception of effluent from vacuum trucks, when applicable. Operational support services: 1. Monitor flow meters; 2. Check clarifiers' sludge blanket level using a sludge blanket probe; 3. Collect and monitor influent and effluent samples via sedimentation using Becker, graduated cylinder, or cone; 4. Assist with valve operations according to system operation (always with an operator); 5. Clean treatment systems, including plants and algae in tanks (specific to operations); 6. Where applicable, assist in operation, cleaning, and maintenance of ETE sludge centrifuges; 7. Monitor sludge dumpster transportation routines; 8. Assist in RAFA and other ETE equipment operation routines. Qualifications: 1. Proven experience in cleaning services. 2. Ability to work both independently and as part of a team. 3. Driver's license class B. 4. Flexibility to work different shifts and perform additional tasks when necessary. 5. Positive attitude, proactivity, and commitment to quality and safety. 6. Good communication and interpersonal skills. 7. Complete Elementary School education. We offer: 1. A challenging and rewarding work environment with opportunities for professional growth and development. 2. Competitive salary plus additional benefits. 3. Flexible working hours and a safe, healthy work environment. 4. Opportunity to be part of a dynamic team committed to excellence. If you are looking for a challenge in a continuously growing company and wish to contribute to the success of RP ENGENHARIA, please send your updated resume to our human resources team. Only qualified candidates will be contacted for the next stage of the selection process. RP ENGENHARIA is committed to diversity and equal employment opportunities. All qualified candidates will be considered for employment without regard to race, color, religion, gender, sexual orientation, nationality, age, marital status, disability, or other characteristics protected by law. Wait for our hiring and take this opportunity to join our team! Minimum Education: High School (2nd Degree) * VT * VR * VA