**None:** **Main activities:** Operate water and wastewater treatment processes, perform monitoring analyses, collect samples, complete and control documentation related to the processes, and clean and organize the workplace. **Requirements:** Completed elementary education (8th grade); Flexible working hours; Driver’s license category B; Willingness to work at Central Santa Cruz/Cafelândia – PR; Internal candidates must have been employed for at least 6 months. Resumes will be reviewed, and selected candidates will be contacted to proceed to the next stage of the selection process by December 30, 2025. Copacol reserves 30% of all positions in its selection processes for Persons with Disabilities. **None:** None